JP2006292713A - Irradiation thermometer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an irradiation thermometer that reduces users' works and increases efficiency of temperature measurement work. <P>SOLUTION: A body section 100B includes a first display panel 94a and a second display panel 94b. On the first display panel 94a a temperature value is displayed, and on the second display panel 94b thermal emissivity is displayed. When the thermal emissivity of an object to be measured is known, the user adjusts the thermal emissivity displayed on the second display panel 94b, to set the thermal emissivity of the object. When the emissivity is unknown, the user adjusts the temperature value displayed on the first display panel 94a, to set the thermal emissivity of the object. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a radiation thermometer that measures the temperature of an object by detecting infrared energy emitted from the object.

A radiation thermometer measures the actual temperature of a measurement object by detecting the infrared energy radiated | emitted from a measurement object, and correct | amending the infrared energy with the emissivity of a measurement object (for example, patent) Reference 1). Since such a radiation thermometer can measure temperature without contact with the measurement object, it can accurately measure the temperature of an object having poor thermal conductivity or an object having a small heat capacity. In addition, the temperature of the moving object and the rotating body can be measured at high speed and with high accuracy. Therefore, the radiation thermometer is used for temperature management of various objects, for example, in factory automation (FA).
JP-A-8-278203

  However, since the emissivity differs depending on the object, it is necessary to set the emissivity for each measurement object. Therefore, it is necessary to remember the emissivity of the object to be measured, or to always form the emissivity table at the time of temperature measurement, which is a heavy burden on the user. Further, when the user does not know the emissivity of the object to be measured, or when the emissivity table is not at hand of the user, the temperature measurement operation cannot be performed, and the work efficiency is greatly reduced.

  An object of the present invention is to provide a radiation thermometer in which the burden on the user is reduced and the temperature measurement work is made efficient.

  A radiation thermometer according to the present invention includes an infrared detecting means for detecting infrared energy from a measurement object, a display unit for displaying a temperature value and an emissivity, and a first temperature value that is displayed on the display unit. Based on the adjusting means, the second adjusting means for adjusting the emissivity displayed on the display unit, the temperature value adjusted by the first adjusting means and the infrared energy detected by the infrared detecting means, Emissivity calculating means for calculating emissivity, emissivity adjusted by the second adjusting means or storage means for storing emissivity calculated by the emissivity calculating means, infrared energy detected by the infrared detecting means, and Temperature calculating means for calculating the temperature value of the object to be measured based on the emissivity stored by the storage means, and the display unit displays the temperature value calculated by the temperature calculating means or the second temperature value. And displays the adjusted temperature value by the adjusting means, and displays the adjusted emissivity by emissivity or second adjusting means calculated by emissivity calculating means.

  In the radiation thermometer according to the present invention, the temperature value and the emissivity are displayed on the display unit. The user can adjust the temperature value displayed on the display unit by the first adjusting means. In addition, the user can adjust the emissivity displayed on the display unit by the second adjusting means. Infrared energy from the measurement object is detected by the infrared detecting means. The emissivity of the measurement object is calculated by the emissivity calculating means based on the temperature value adjusted by the first adjusting means and the infrared energy detected by the infrared detecting means. The emissivity adjusted by the second adjusting means or the emissivity calculated by the emissivity calculating means is stored in the storage means. Based on the infrared energy detected by the infrared detection means and the emissivity stored by the storage means, the temperature value of the measurement object is calculated by the temperature calculation means.

  As described above, when the user adjusts the temperature value displayed on the display unit by the first adjusting unit, the emissivity of the measurement object is calculated by the emissivity calculating unit, and the calculated emissivity is stored. Stored by means. On the other hand, when the user adjusts the emissivity displayed on the display unit by the second adjusting unit, the adjusted emissivity is stored in the storage unit.

  Therefore, when the emissivity of the measurement object is clear, the emissivity of the measurement object can be set by adjusting the emissivity displayed on the display unit by the second adjustment means. When the emissivity is unknown, the emissivity of the measurement object can be set by adjusting the temperature value displayed on the display unit by the first adjusting means. That is, the emissivity can be set if either the temperature value or emissivity of the measurement object is clear. Therefore, when there is another means for measuring the temperature of the measurement object, the user does not need to remember the emissivity of various objects, and carries the emissivity table when measuring the temperature. There is no need.

  The display unit displays the temperature value calculated by the temperature calculating unit or the temperature value adjusted by the first adjusting unit, and the emissivity calculated by the emissivity calculating unit or the second adjusting unit. The emissivity adjusted by is displayed.

  As described above, since the temperature value and the emissivity are simultaneously displayed by the display unit, it is not necessary to switch between the temperature value display and the emissivity display when adjusting the temperature value or the emissivity. Therefore, the time required for setting the emissivity can be shortened.

  As a result, the burden on the user can be reduced and the temperature measurement work can be made more efficient.

  A first switching unit that switches the temperature value displayed on the display unit to an adjustable state, a second switching unit that switches the emissivity displayed on the display unit to an adjustable state, and a first adjustment unit. The apparatus may further comprise first indicating means indicating that the temperature value can be adjusted, and second indicating means indicating that the emissivity can be adjusted by the second adjusting means. Good.

  In this case, when the temperature value displayed on the display unit is switched to the adjustable state by the first switching unit, the user can recognize this by the first instruction unit. Further, when the emissivity displayed on the display unit is switched to an adjustable state by the second switching unit, the user can recognize this by the second instruction unit. Thereby, the user can easily grasp which of the temperature value and the emissivity displayed on the display unit is in an adjustable state.

  The first instruction means includes first display form changing means for changing a display form of the temperature value displayed on the display unit when the temperature value can be adjusted by the first adjusting means. The second instruction means may include a second display form changing means for changing the display form of the emissivity displayed on the display unit when the emissivity can be adjusted by the second adjusting means.

  In this case, when the temperature value is adjustable, the display form of the temperature value is changed by the first display form changing means. When the emissivity is in an adjustable state, the emissivity display form is changed by the second display form changing means. Thus, the user can visually grasp which of the temperature value and emissivity displayed on the display unit is in an adjustable state.

  The display form may be a blinking state. In this case, the user can more clearly grasp which of the temperature value and the emissivity displayed on the display unit is in an adjustable state.

  The first indicating means includes a first indicator lamp that is turned on when the temperature value can be adjusted by the first adjusting means, and the second indicating means is determined by the second adjusting means. A second indicator lamp that is turned on when the temperature value can be adjusted may be included.

  In this case, when the temperature value is adjustable, the first indicator lamp is turned on, and when the emissivity is adjustable, the second indicator lamp is lit. . Thereby, the user can grasp | ascertain more easily which is in the state which can be adjusted among the temperature value and emissivity which are displayed on a display part.

  The display unit may include first and second display areas, one of the first and second display areas may display a temperature value, and the other may display an emissivity. In this case, the user can more clearly grasp which of the temperature value and emissivity displayed on the display unit is adjustable.

  You may further provide the replacement means which replaces the temperature value or emissivity displayed on a 1st display area, and the emissivity or temperature value displayed on a 2nd display area. In this case, since the user can arbitrarily replace the values displayed in the first display area and the second display area, usability is improved.

  According to the present invention, the emissivity can be set if either the temperature value or emissivity of the measurement object is clear. Therefore, when there is another means for measuring the temperature of the measurement object, the user does not need to remember the emissivity of various objects, and carries the emissivity table when measuring the temperature. There is no need.

  Further, since the temperature value and the emissivity are simultaneously displayed on the display unit, it is not necessary to switch between the temperature value display and the emissivity display when adjusting the temperature value or the emissivity. Therefore, the time required for setting the emissivity can be shortened.

  As a result, the burden on the user can be reduced and the temperature measurement work can be made more efficient.

  Hereinafter, a radiation thermometer according to an embodiment of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram of a radiation thermometer according to the first embodiment of the present invention.

  As shown in FIG. 1, a radiation thermometer 100 according to the present embodiment includes a head portion 100A and a main body portion 100B. Although not shown in FIG. 1, the main body unit 100 </ b> B has a display unit 94. The display unit 94 will be described later.

  The head portion 100A and the main body portion 100B are connected to each other by a cable 80. The main body 100B is connected to an external device (not shown) via a cable 81.

  FIG. 2 is a block diagram of the head unit 100A of FIG. 1, and FIG. 3 is a block diagram of the main body unit 100B of FIG.

  As shown in FIG. 2, the head unit 100A includes a thermopile 10, a preamplifier substrate 20, a main substrate 30, a power supply substrate 40, and two laser diodes 60 and 70.

  The thermopile 10 includes an infrared light receiving unit 11 and a thermistor 12. A first signal amplifying unit 21 and a second signal amplifying unit 22 are mounted on the preamplifier substrate 20. The main board 30 includes a third signal amplifying unit 31, analog-digital conversion circuits (hereinafter abbreviated as AD conversion circuits) 32 and 33, a CPU (Central Processing Unit) 34, a storage unit 35, and a laser drive circuit 36. Is implemented.

  A power supply circuit 41, a communication circuit 42, and a laser drive circuit 43 are mounted on the power supply board 40. A cable 80 including a power supply line and a signal line is connected to the power supply board 40.

  In the thermopile 10, the infrared light receiving unit 11 detects infrared energy emitted from the measurement object. The thermistor 12 detects the internal temperature of the thermopile 10.

  In the preamplifier substrate 20, the first signal amplifier 21 amplifies the output signal of the infrared light receiver 11. The second signal amplifier 22 amplifies the output signal of the thermistor 12.

  In the main substrate 30, the third signal amplification unit 31 amplifies the output signal of the first signal amplification unit 21. The AD conversion circuit 32 converts the output signal of the first signal amplifying unit 21 into a digital signal, and gives the digital signal to the CPU 34 as the detected temperature value of the measurement object. The AD conversion circuit 33 converts the output signal of the second signal amplification unit 22 into a digital signal, and provides the digital signal to the CPU 34 as an internal temperature value.

  The CPU 34 gives the detected temperature value and the internal temperature value to the main body 100 </ b> B through the communication circuit 42 and the cable 80.

  Further, the CPU 34 feedback-controls the gain of the third signal amplifying unit 31 based on the level of the output signal of the AD conversion circuit 32. Further, the CPU 34 controls the operation of the laser drive circuits 36 and 43.

  The storage unit 35 stores information about the thermopile 10 and the like. The information regarding the thermopile 10 includes, for example, the gain and offset value of the infrared light receiving unit 11, the gain and offset value of the thermistor 12, and the measured temperature range of the thermopile.

  In the power supply board 40, the power supply circuit 41 supplies power supplied from the main body 100B through the cable 80 to each component of the head 100A.

  Both the communication circuit 42 and the laser drive circuit 43 are connected to the CPU 34 of the main board 30.

  As described above, the communication circuit 42 performs communication between the CPU 34 and the main body 100B via the cable 80. The laser drive circuit 43 drives the laser diode 70 under the control of the CPU 34. Laser light emitted from the laser diodes 60 and 70 is applied to the measurement location of the measurement object.

  In FIG. 2, the thermopile 10 includes the thermistor 12, but is not limited thereto, and the thermistor 12 may be provided outside the thermopile 10.

  Further, the positions on the substrate on which the components on the preamplifier substrate 20, the main substrate 30 and the power supply substrate 40 are provided are not particularly limited to the example of FIG.

  As shown in FIG. 3, the main unit 100B includes a power supply circuit 91, a communication circuit 92, a CPU 93, a display unit 94, a storage unit 95, an operation setting unit 96, and an external output circuit 97.

  A cable 80 is connected to the power supply circuit 91 and the communication circuit 92. The power supply circuit 91 includes a power supply source such as a battery, and supplies the power to each component of the main body 100B and the head 100A. The communication circuit 92 performs communication between the CPU 93 and the head unit 100A via the cable 80. The power supply circuit 91 is composed of, for example, a constant voltage circuit that supplies electric power supplied from the outside with a constant voltage.

  The storage unit 95 stores an arithmetic expression for the CPU 93 to calculate the temperature value and emissivity of the measurement object. The storage unit 95 stores the emissivity of the measurement object. The emissivity setting method will be described later.

  The CPU 93 controls the operation of each component of the main body 100B. Further, the CPU 93 calculates the temperature value of the measurement object based on the detected temperature value and the internal temperature value given from the head unit 100 </ b> A and the emissivity stored in the storage unit 95.

  Further, the CPU 93 displays the calculated temperature value as a numerical value on the display unit 94 and outputs it from the external output circuit 97 to the outside through the cable 81 as an analog signal and a digital signal.

  Next, a schematic structure of the radiation thermometer 100 according to the present embodiment will be described.

  FIG. 4 is an external perspective view showing an example of a radiation thermometer according to the present embodiment.

  Each component of the head portion 100A is built in a substantially rectangular parallelepiped head casing HK. The head casing HK has an upper surface HKU, a lower surface HKD, a front surface HKF, a back surface HKB, and side surfaces HKS1 and HKS2.

  In the following description, as indicated by arrows X, Y, and Z in FIG. 4, the direction perpendicular to the side surfaces HKS1 and HKS2 is referred to as the X direction, the direction perpendicular to the front surface HHKF and the rear surface HKB is referred to as the Y direction, A direction perpendicular to KU and the lower surface HKD is referred to as a Z direction.

  In FIG. 4, an infrared condensing unit HKH and laser emitting units HK60 and HK70 are provided on the front surface HKF of the head casing HK.

  In the infrared condensing unit HKH, infrared rays radiated from the measurement object are captured. Laser light generated by laser diodes 60 and 70, which will be described later, is emitted from laser emission units HK60 and HK70 toward the measurement location. Thereby, the user can easily recognize the measurement location of the measurement object.

  A cable 80 is connected to the rear HKB. This cable 80 is connected to the main body 100B.

  Each component of the main body 100B is built in a main casing MK having a substantially rectangular parallelepiped shape. The main casing MK has an upper surface MKU, a lower surface MKD, a front surface MKK, a back surface MKB, and side surfaces MKS1 and MKS2.

  A cable 80 is connected to the side surface MKS1. The cable 80 connects the head portion 100A and the main body portion 100B. A cable 81 is connected to the side surface MKS2. This cable 81 is connected to an external device (not shown).

  A display unit 94 and an operation setting unit 96 are provided on the front surface MKF of the main casing MK.

  The display unit 94 includes a first display panel 94a and a second display panel 94b. The first display panel 94a includes a first 7-segment LED 101a and a first indicator lamp 102a. The second display panel 94b includes a second 7-segment LED 101b and a second indicator lamp 102b. In the present embodiment, a temperature value is displayed on the first display panel 94a by the first 7-segment LED 101a, and an emissivity is displayed on the second display panel 94b by the second 7-segment LED 101b. The

  The operation setting unit 96 includes an up key 96a, a down key 96b, a mode key 96c, and a set key 96d. These keys are used when the user adjusts the temperature value displayed on the first display panel 94a and the emissivity displayed on the second display panel 94b.

  Here, an emissivity setting method will be described with reference to the drawings.

  FIG. 5 is a flowchart showing an example of the emissivity setting process of the CPU 93 of FIG. 3, and FIGS. 6, 7 and 8 are diagrams showing an example of the state of the display unit 94 during the emissivity setting process. . 6 and 7 show the emissivity setting process when measuring the temperature of a measurement object having a temperature value of 123.0 ° C. and an emissivity of 1.00. FIG. 6A shows the state of the display unit 94 before the start of emissivity setting processing. In this example, the measured temperature value is displayed as 127.5 ° C. on the first display panel 94a, and the emissivity is displayed as 0.95 on the second display panel 94b.

  As shown in FIG. 5, first, the CPU 93 determines whether or not the set key 96d (see FIG. 6) has been pressed (step S1). When the set key 96d is not pressed, the CPU 93 stands by until the set key 96d is pressed.

  In step S1, when the user presses the set key 96d to start the emissivity setting process, the CPU 93 causes the first 7-segment LED 101a to blink as shown in FIG. The temperature value displayed on the display panel 94a is made adjustable (step S2). Thus, by blinking the first 7-segment LED 101a, the user can easily recognize that the temperature value displayed on the first display panel 94a is adjustable. When the temperature value displayed on the first display panel 94a is adjustable, the emissivity displayed on the second display panel 94b cannot be adjusted.

  Next, the CPU 93 determines whether or not the set key 96d has been pressed (step S3). When the set key 96d is pressed, as shown in FIG. 6C, the CPU 93 blinks the second 7-segment LED 101b and can adjust the emissivity displayed on the second display panel 94b. Further, the first 7 segment 101a is returned to the normal lighting state (step S4). Thereby, the user can easily recognize that the emissivity is adjustable. If the emissivity displayed on the second display panel 94b is adjustable, the temperature value displayed on the first display panel 94a cannot be adjusted.

  Next, the CPU 93 determines whether or not the set key 96d has been pressed (step S5). When the set key 96d is pressed, the CPU 93 sets the first and second 7-segment LEDs 101a and 101b to a normal lighting state, displays the temperature value on the first display panel 94a, and displays the temperature value on the second display panel 94b. The emissivity is displayed (step S6). In this case, since the CPU 93 calculates the temperature value based on the emissivity before the emissivity setting process starts, the temperature value and emissivity displayed on the display unit 94 are equal to those before the emissivity setting process starts. In this example, the state is as shown in FIG. 6A, the temperature value is displayed as 127.5 ° C. on the first display panel 94a, and the emissivity is displayed as 0.95 on the second display panel 94b.

  In step S3, when the set key 96d has not been pressed, the CPU 93 determines whether or not the upper key 96a or the lower key 96b has been pressed (step S7). If the upper key 96a or the lower key 96b has not been pressed, the CPU 93 returns to the process of step S3.

  If the upper key 96a or the lower key 96b is pressed in step S7, the CPU 93 changes the temperature value displayed on the first display panel 94a (step S8). For example, when the display unit 94 is in the state of FIG. 6B in step S7, when the user presses the down key 96b, the display is displayed on the first display panel 94a as shown in FIG. 7A. Temperature value is changed to 127.4 ° C.

  Next, the CPU 93 determines whether or not the set key 96d has been pressed (step S9). When the set key 96d has not been pressed, the CPU 93 determines whether or not the upper key 96a or the lower key 96b has been pressed (step S10). If the upper key 96a or the lower key 96b has not been pressed, the CPU 93 returns to the process of step S9.

  If the upper key 96a or the lower key 96b is pressed in step S10, the CPU 93 changes the temperature value displayed on the first display panel 94a (step S11). Thereafter, the CPU 93 returns to the process of step S9. For example, when the display unit 94 is in the state of FIG. 7A in step S10, when the user presses the down key 96b, the display is displayed on the first display panel 94a as shown in FIG. 7B. Temperature value is changed to 127.3 ° C.

  The temperature value displayed on the first display panel 94a is changed to a desired value by repeating the processes of step S9, step S10 and step S11, that is, by pressing the upper key 96a or the lower key 96b a predetermined number of times. Can do. In this example, as shown in FIG. 7C, the user presses the lower key 96b a predetermined number of times until the temperature value displayed on the first display panel 94a reaches 123.0 ° C.

  When the set key 96d is pressed in step S9, the CPU 93 is based on the temperature value currently displayed on the first display panel 94a, the detected temperature value given from the head unit 100A in FIG. The emissivity is calculated, and the calculated emissivity is stored in the storage unit 95 of FIG. 3 (step S12). In this example, it is assumed that the emissivity is calculated as 1.00 based on the temperature value 123.0 ° C. displayed on the first display panel 94a.

  Next, the CPU 93 calculates the temperature value of the measurement object based on the emissivity stored in the storage unit 95, the detected temperature value, and the internal temperature value (step S13). In this example, it is assumed that the temperature value is calculated as 123.0 ° C.

  Next, the CPU 93 proceeds to the process of step S6, sets the first and second 7-segment LEDs 101a and 101b to a normal lighting state, and displays the temperature value calculated in step S13 on the first display panel 94a. The emissivity stored in the storage unit 95 is displayed on the second display panel 94b. In this example, as shown in FIG. 7D, the temperature value is displayed as 123.0 ° C. on the first display panel 94a, and the emissivity is displayed as 1.00 on the second display panel 94b. Thereby, the emissivity setting process ends.

  In step S5, when the set key 96d has not been pressed, the CPU 93 determines whether or not the upper key 96a or the lower key 96b has been pressed (step S14). If the upper key 96a or the lower key 96b has not been pressed, the CPU 93 returns to the process of step S5.

  When the upper key 96a or the lower key 96b is pressed in step S14, the CPU 93 changes the emissivity displayed on the second display panel 94b (step S15). For example, when the display unit 94 is in the state of FIG. 6C in step S14, when the user presses the up key 96a, the display is displayed on the second display panel 94b as shown in FIG. 8A. The emissivity is changed to 0.96.

  Next, the CPU 93 determines whether or not the set key 96d has been pressed (step S16). When the set key 96d has not been pressed, the CPU 93 determines whether or not the upper key 96a or the lower key 96b has been pressed (step S17). If the upper key 96a or the lower key 96b has not been pressed, the CPU 93 returns to the process of step S16.

  If the upper key 96a or the lower key 96b is pressed in step S17, the CPU 93 changes the emissivity displayed on the second display panel 94b (step S18). Thereafter, the CPU 93 returns to the process of step S16. For example, when the display unit 94 is in the state of FIG. 8A in step S17, when the user presses the up key 96a, the display is displayed on the second display panel 94b as shown in FIG. 8B. The emissivity is changed to 0.97.

  The emissivity displayed on the second display panel 94b is changed to a desired value by repeating the processes of step S16, step S17 and step S18, that is, by pressing the upper key 96a or the lower key 96d a predetermined number of times. Can do. In this example, as shown in FIG. 8C, the user presses the upper key 96a a predetermined number of times until the emissivity displayed on the second display panel 94b reaches 1.00.

  If the set key 96d is pressed in step S16, the CPU 93 stores the emissivity currently displayed on the second display panel 94b in the storage unit 95 of FIG. 3 (step S19). Thereby, the value of emissivity is set. In this example, the emissivity is set to 1.00.

  Next, the CPU 93 proceeds to the process of step S13, and calculates the temperature value of the measurement object based on the emissivity stored in the storage unit 95, the detected temperature value, and the internal temperature value. In this example, it is assumed that the temperature value is calculated as 123.0 ° C.

  Next, the CPU 93 proceeds to the process of step S6, sets the first and second 7-segment LEDs 101a and 101b to a normal lighting state, and displays the temperature value calculated in step S13 on the first display panel 94a. The emissivity stored in the storage unit 95 is displayed on the second display panel 94b. In this example, as shown in FIG. 8D, the temperature value is displayed as 123.0 ° C. on the first display panel 94a, and the emissivity is displayed as 1.00 on the second display panel 94b. Thereby, the emissivity setting process ends.

  Thus, in the present embodiment, even when the emissivity of the measurement object is unknown, the emissivity of the measurement object can be calculated by setting the temperature value. That is, the emissivity can be set if either the temperature value or emissivity of the measurement object is clear. Therefore, when there is another means for measuring the temperature of the measurement object, the user does not need to remember the emissivity of various objects, and carries the emissivity table when measuring the temperature. There is no need.

  In addition, since the temperature value and the emissivity are simultaneously displayed by the first display panel 94a and the second display panel 94b, respectively, when adjusting the temperature value or emissivity, the temperature value display and the emissivity display There is no need to switch between. Therefore, the time required for setting the emissivity can be shortened.

  As a result, the burden on the user can be reduced and the temperature measurement work can be made more efficient.

(Second Embodiment)
The radiation thermometer according to the second embodiment is different from the radiation thermometer 100 according to the first embodiment in the following points.

  9 and 10 are flowcharts showing an example of emissivity setting processing of the CPU 93 (see FIG. 3) in the second embodiment. Although not shown, the processes in steps S1 to S6 are performed in the same manner as in the flowchart of FIG.

  In the second embodiment, when the set key 96d is not pressed in step S3 of FIG. 5, as shown in FIG. 9, the CPU 93 determines whether the upper key 96a or the lower key 96b is pressed. (Step S7). When the up key 96a or the down key 96b has not been pressed, the CPU 93 returns to the process of step S3 in FIG.

  If the upper key 96a or the lower key 96b is pressed in step S7, the CPU 93 changes the temperature value displayed on the first display panel 94a (step S8).

  Next, the CPU 93 calculates the emissivity based on the changed temperature value, the detected temperature value given from the head unit 100A of FIG. 2 and the internal temperature value, and stores the calculated emissivity in the storage unit 95 of FIG. (Step S8a).

  Next, the CPU 93 calculates the temperature value of the measurement object based on the emissivity stored in the storage unit 95 in step S8a, the detected temperature value, and the internal temperature value, and the calculated temperature value is displayed on the first display. The information is displayed on the panel 94a (step S8b).

  Next, the CPU 93 determines whether or not the set key 96d has been pressed (step S9). When the set key 96d has not been pressed, the CPU 93 determines whether or not the upper key 96a or the lower key 96b has been pressed (step S10). If the upper key 96a or the lower key 96b has not been pressed, the CPU 93 returns to the process of step S9.

  If the upper key 96a or the lower key 96b is pressed in step S10, the CPU 93 changes the temperature value displayed on the first display panel 94a (step S11).

  Next, the CPU 93 calculates the emissivity based on the changed temperature value, the detected temperature value given from the head unit 100A of FIG. 2 and the internal temperature value, and stores the calculated emissivity in the storage unit 95 of FIG. (Step S11a).

  Next, the CPU 93 calculates the temperature value of the measurement object based on the emissivity stored in the storage unit 95 in step S11a, the detected temperature value, and the internal temperature value, and the calculated temperature value is displayed on the first display. The information is displayed on the panel 94a (step S11b). Thereafter, the CPU 93 returns to the process of step S9.

  The temperature value displayed on the first display panel 94a can be changed to a desired value by repeating these steps S9 to S11b, that is, by pressing the upper key 96a or the lower key 96b a predetermined number of times. The emissivity of the measurement object can be calculated based on the changed temperature value. Further, the temperature value of the measurement object can be calculated based on the calculated emissivity.

  In step S9, when the set key 96d is pressed, the CPU 93 proceeds to the process of step S6 in FIG. 5 to turn on the first and second 7-segment LEDs 101a and 101b in a normal lighting state, and the first display panel 94a. The temperature value is displayed and the emissivity is displayed on the second display panel 94b. Thereby, the emissivity setting process ends.

  If the set key 96d is not pressed in step S5 in FIG. 5, as shown in FIG. 10, the CPU 93 determines whether the upper key 96a or the lower key 96b is pressed (step S14). When the up key 96a or the down key 96b has not been pressed, the CPU 93 returns to the process of step S5 in FIG.

  If the upper key 96a or the lower key 96b is pressed in step S14, the CPU 93 changes the emissivity displayed on the second display panel 94b and stores the emissivity in the storage unit 95 of FIG. Step S15a).

  Next, the CPU 93 calculates the temperature value of the measurement object based on the emissivity stored in the storage unit 95 in step S15a, the detected temperature value, and the internal temperature value, and the calculated temperature value is displayed on the first display. The information is displayed on the panel 94a (step S15b).

  Next, the CPU 93 determines whether or not the set key 96d has been pressed (step S16). When the set key 96d has not been pressed, the CPU 93 determines whether or not the upper key 96a or the lower key 96b has been pressed (step S17). If the upper key 96a or the lower key 96b has not been pressed, the CPU 93 returns to the process of step S16.

  When the up key 96a or the down key 96b is pressed in step S17, the CPU 93 changes the emissivity displayed on the second display panel 94b and stores the emissivity in the storage unit 95 of FIG. Step S18a).

  Next, the CPU 93 calculates the temperature value of the measurement object based on the emissivity stored in the storage unit 95 in step S18a, the detected temperature value, and the internal temperature value, and the calculated temperature value is displayed on the first display. The information is displayed on the panel 94a (step S18b). Thereafter, the CPU 93 returns to the process of step S16.

  By repeating these steps S16 to S18b, that is, by pressing the up key 96a or the down key 96b a predetermined number of times, the emissivity displayed on the second display panel 94b can be set to a desired value, The temperature of the measurement object can be calculated based on the set emissivity.

  In step S16, when the set key 96d is pressed, the CPU 93 proceeds to the process of step S6 in FIG. 5 to turn on the first and second 7-segment LEDs 101a and 101b in a normal lighting state, and the first display panel 94a. The temperature value is displayed and the emissivity is displayed on the second display panel 94b. Thereby, the emissivity setting process ends.

  As described above, in the present embodiment, the CPU 93 performs the emissivity and temperature value calculation process at the same time as the temperature value or emissivity is changed by the user. In this case, the user can confirm the temperature value or emissivity according to the operation result in real time while operating the upper key 96a or the lower key 96b.

(Third embodiment)
The radiation thermometer according to the third embodiment is different from the radiation thermometer according to the first embodiment in the following points.

  FIG. 11 is a flowchart showing an example of emissivity setting processing of the CPU 93 (see FIG. 3) in the third embodiment.

  In the third embodiment, when the set key 96d is pressed in step S3, as shown in FIG. 11, the CPU 93 displays the emissivity on the first display panel 94a and the second display panel 94b. In addition, the temperature value is displayed and the first 7-segment LED is blinked so that the emissivity can be adjusted (step S4a). In this case, the temperature value displayed on the second display panel 94b cannot be adjusted.

  Next, the CPU 93 determines whether or not the set key 96d has been pressed (step S5). When the set key 96d is pressed, the CPU 93 sets the first and second 7-segment LEDs 101a and 101b to a normal lighting state, displays the temperature value on the first display panel 94a, and displays the temperature value on the second display panel 94b. The emissivity is displayed (step S6).

  In step S5, when the set key 96d has not been pressed, the CPU 93 determines whether or not the upper key 96a or the lower key 96b has been pressed (step S14). If the upper key 96a or the lower key 96b has not been pressed, the CPU 93 returns to the process of step S5.

  In step S14, when the upper key 96a or the lower key 96b is pressed, the CPU 93 changes the emissivity displayed on the first display panel 94a (step S15c).

  Next, the CPU 93 determines whether or not the set key 96d has been pressed (step S16). When the set key 96d has not been pressed, the CPU 93 determines whether or not the upper key 96a or the lower key 96b has been pressed (step S17). If the upper key 96a or the lower key 96b has not been pressed, the CPU 93 returns to the process of step S16.

  In step S17, when the upper key 96a or the lower key 96b is pressed, the CPU 93 changes the emissivity displayed on the first display panel 94a (step S18c). Thereafter, the CPU 93 returns to the process of step S16.

  The emissivity displayed on the first display panel 94a is changed to a desired value by repeating the processing of step S16, step S17 and step S18c, that is, by pressing the upper key 96a or the lower key 96d a predetermined number of times. Can do.

  When the set key 96d is pressed in step S16, the CPU 93 stores the emissivity currently displayed on the first display panel 94a in the storage unit 95 of FIG. 3 (step S19a). Thereby, the value of emissivity is set.

  Next, the CPU 93 proceeds to the process of step S13, and calculates the temperature value of the measurement object based on the emissivity stored in the storage unit 95, the detected temperature value, and the internal temperature value.

  Next, the CPU 93 proceeds to the process of step S6, sets the first and second 7-segment LEDs 101a and 101b to a normal lighting state, and displays the temperature value calculated in step S13 on the first display panel 94a. The emissivity stored in the storage unit 95 is displayed on the second display panel 94b. Thereby, the emissivity setting process ends.

  As described above, in the present embodiment, an adjustable value among the temperature value and the emissivity is always displayed on the first display panel 94a. Thereby, the user can easily recognize which of the temperature value and the emissivity is adjustable.

(Fourth embodiment)
The radiation thermometer according to the fourth embodiment is different from the radiation thermometer 100 according to the first embodiment in the following points.

  12 and 13 are flowcharts showing an example of emissivity setting processing of the CPU 93 (see FIG. 3) in the fourth embodiment.

  As shown in FIG. 12, first, the CPU 93 determines whether or not the mode key 96c (see FIG. 4) has been pressed (step S21). When the mode key 96c is pressed, the CPU 93 determines whether or not the temperature value is displayed on the first display panel 94a (step S22). When the temperature value is displayed on the first display panel 94a, the CPU 93 displays the emissivity on the first display panel 94a and the temperature value on the second display panel 94b. That is, the value displayed on the first display panel 94a and the value displayed on the second display panel 94b are switched.

  Next, the CPU 93 determines whether or not the set key 96d has been pressed (step S24). If the set key 96d has not been pressed, the CPU 93 returns to the process of step S21.

  When the mode key 96c is not pressed in step S21, the CPU 93 proceeds to the process of step S24 without replacing the value displayed on the first display panel 94a and the value displayed on the second display panel 94b. .

  When the emissivity is displayed on the first display panel 94a in step S22, the CPU 93 displays the temperature value on the first display panel 94a and displays the emissivity on the second display panel 94b (step S25). ). That is, the value displayed on the first display panel 94a and the value displayed on the second display panel 94b are switched. Thereafter, the CPU 93 proceeds to the process of step S24.

  When the set key 96d is pressed in step S24, the CPU 93 causes the first 7-segment LED to blink and allows the value displayed on the first display panel 94a to be adjusted as shown in FIG. (Step S26).

  Next, the CPU 93 determines whether or not the set key 96d has been pressed (step S27). When the set key 96d has not been pressed, the CPU 93 determines whether or not the upper key 96a or the lower key 96b has been pressed (step S28). If the upper key 96a or the lower key 96b has not been pressed, the CPU 93 returns to the process of step S27.

  When the upper key 96a or the lower key 96b is pressed in step S28, the CPU 93 changes the value displayed on the first display panel 94a (step S29). Thereafter, the CPU 93 returns to the process of step S27.

  It is possible to change the value displayed on the first display panel 94a to a desired value by repeating the processing of step S27, step S28 and step S29, that is, by pressing the upper key 96a or the lower key 96b a predetermined number of times. it can.

  When the set key 96d is pressed in step S27, the CPU 93 determines whether or not a temperature value is displayed on the first display panel 94a (step S30). When the temperature value is displayed on the first display panel 94a, the CPU 93 displays the temperature value currently displayed on the first display panel 94a, the detected temperature value and the internal temperature value given from the head unit 100A of FIG. And the calculated emissivity is stored in the storage unit 95 of FIG. 3 (step S31).

  Next, the CPU 93 calculates the temperature value of the measurement object based on the emissivity stored in the storage unit 95, the detected temperature value, and the internal temperature value (step S33).

  Next, the CPU 93 sets the first and second 7-segment LEDs 101a and 101b to a normal lighting state, displays the temperature value calculated in step S32 on the first display panel 94a, and stores it in the storage unit 95. The emissivity is displayed on the second display panel 94b (step S33). Thereby, the emissivity setting process ends.

  In step S30, when the emissivity is displayed on the first display panel 94b, the CPU 93 stores the emissivity currently displayed on the first display panel 94a in the storage unit 95 of FIG. 3 (step S34). ). Thereby, the value of emissivity is set.

  Next, the CPU 93 calculates the temperature value of the measurement object based on the emissivity stored in the storage unit 95, the detected temperature value, and the internal temperature value (step S35).

  Next, the CPU 93 sets the first and second 7-segment LEDs 101a and 101b to a normal lighting state, displays the emissivity stored in the storage unit 95 on the first display panel 94a, and is calculated in step S35. The temperature value is displayed on the second display panel 94b (step S36). Thereby, the emissivity setting process ends.

  As described above, in the present embodiment, the values displayed on the first display panel 94a and the second display panel 94b can be switched. In this case, since the user can arbitrarily replace the values displayed on the first display panel 94a and the second display panel 94b, the usability is improved.

  For example, when it is necessary to frequently set the emissivity of the measurement object, the emissivity is set to be displayed on the first display panel 94a, and the emissivity of the measurement object is almost set. If it is not necessary, the temperature value may be displayed on the first display panel 94a.

(Fifth embodiment)
The radiation thermometer according to the fifth embodiment is different from the radiation thermometer 100 according to the first embodiment in the following points.

  14 to 17 are flowcharts showing an example of emissivity setting processing of the CPU 93 (see FIG. 3) in the fifth embodiment. It is assumed that the display unit 94 before the start of the emissivity setting process is in the state shown in FIG.

  As shown in FIG. 14, first, the CPU 93 determines whether or not the set key 96d (see FIG. 6) has been pressed (step S41). When the set key 96d is not pressed, the CPU 93 stands by until the set key 96d is pressed.

  In step S41, when the user presses the set key 96d to start the emissivity setting process, the CPU 93 causes the first 7-segment LED 101a to blink as shown in FIG. The temperature value displayed on the display panel 94a is brought into an adjustable state (step S42).

  Next, the CPU 93 determines whether or not the set key 96d has been pressed (step S43). When the set key 96d is pressed, the CPU 93 sets the first and second 7-segment LEDs 101a and 101b to the normal lighting state without changing the temperature value, and displays the temperature value on the first display panel 94a. The emissivity is displayed on the second display panel 94b (step S44). In this example, the state is as shown in FIG. 6A, the temperature value is displayed as 127.5 ° C. on the first display panel 94a, and the emissivity is displayed as 0.95 on the second display panel 94b.

  In step S43, when the set key 96d has not been pressed, the CPU 93 determines whether or not the mode key 96c (see FIG. 6) has been pressed (step S45). When the mode key 96c is pressed, the CPU 93 can blink the second 7-segment LED 101b and adjust the emissivity displayed on the second display panel 94b as shown in FIG. 6C. In addition, the first 7 segment 101a is returned to the normal lighting state (see step S46 in FIG. 15).

  Next, the CPU 93 determines whether or not the set key 96d has been pressed (step S47). When the set key 96d is pressed, the CPU 93 proceeds to the process of step S44 in FIG. 14 without changing the emissivity. In this example, the state is as shown in FIG. 6A, the temperature value is displayed as 127.5 ° C. on the first display panel 94a, and the emissivity is displayed as 0.95 on the second display panel 94b.

  In step S47, when the set key 96d is not pressed, the CPU 93 determines whether or not the mode key 96c is pressed (step S48). When the mode key 96c is pressed, the CPU 93 returns to the process of step S42 in FIG.

  If the mode key 96c has not been pressed in step S48, the CPU 93 determines whether the upper key 96a or the lower key 96b (see FIG. 6) has been pressed (step S49). If the upper key 96a or the lower key 96b has not been pressed, the CPU 93 returns to the process of step S47.

  When the upper key 96a or the lower key 96b is pressed in step S49, the CPU 93 changes the emissivity displayed on the second display panel 94b as shown in FIG. 16 (step S50). For example, when the display unit 94 is in the state of FIG. 6C in step S49, when the user presses the up key 96a, the display is displayed on the second display panel 94b as shown in FIG. 8A. The emissivity is changed to 0.96.

  Next, the CPU 93 determines whether or not the set key 96d has been pressed (step S51). If the set key 96d has not been pressed, the CPU 93 determines whether or not the mode key 96c has been pressed (step S52). When the mode key 96c is pressed, the CPU 93 returns the emissivity to the value at the start of the emissivity setting process (0.95 in this example) (step S53). Thereafter, the process proceeds to step S42 in FIG.

  If the mode key 96c has not been pressed in step S52, the CPU 93 determines whether or not the upper key 96a or the lower key 96b has been pressed (step S54). When the upper key 96a or the lower key 96b is not pressed, the CPU 93 returns to the process of step S51.

  If the upper key 96a or the lower key 96b is pressed in step S54, the CPU 93 changes the emissivity displayed on the second display panel 94b (step S55). Thereafter, the CPU 93 returns to the process of step S51. For example, when the display unit 94 is in the state of FIG. 8A in step S54, when the user presses the up key 96a, the display is displayed on the second display panel 94b as shown in FIG. 8B. The emissivity is changed to 0.97.

  By repeating the processes of step S51, step S52, step S54, and step S55, that is, by pressing the upper key 96a or the lower key 96d a predetermined number of times, the emissivity displayed on the second display panel 94b is set to a desired value. Can be changed.

  When the set key 96d is pressed in step S51 of FIG. 15, the CPU 93 stores the emissivity currently displayed on the second display panel 94b in the storage unit 95 of FIG. 3 (step S56). Thereby, the value of emissivity is set.

  Next, the CPU 93 calculates the temperature value of the measurement object based on the emissivity stored in the storage unit 95 and the detected temperature value and the internal temperature value given from the head unit 100A of FIG. 2 (step S57).

  Thereafter, the CPU 93 proceeds to the process of step S44 in FIG. 14, sets the first and second 7-segment LEDs 101a and 101b to the normal lighting state, displays the temperature value on the first display panel 94a, and performs the second display. The emissivity is displayed on the panel 94b.

  When the mode key 96c is not pressed in step S45 of FIG. 14, the CPU 93 determines whether or not the upper key 96a or the lower key 96b is pressed (step S58). When the upper key 96a or the lower key 96b is not pressed, the CPU 93 returns to the process of step S43.

  When the upper key 96a or the lower key 96b is pressed in step S58, the CPU 93 changes the temperature value displayed on the first display panel 94a as shown in FIG. 17 (step S59). For example, when the display unit 94 is in the state shown in FIG. 6B in step S58 of FIG. 14, when the user presses the down key 96b, as shown in FIG. 7A, the first display panel 94a is displayed. The temperature value displayed on is changed to 127.4 ° C.

  Next, the CPU 93 determines whether or not the set key 96d has been pressed (step S60). If the set key 96d has not been pressed, the CPU 93 determines whether or not the mode key 96c has been pressed (step S61). When the mode key 96c is pressed, the CPU 93 returns the temperature value to the value at the start of the emissivity setting process (127.5 ° C. in this example) (step S62). Thereafter, the process proceeds to step S46 in FIG.

  When the mode key 96c is not pressed in step S61, the CPU 93 determines whether or not the upper key 96a or the lower key 96b is pressed (step S63). If the upper key 96a or the lower key 96b has not been pressed, the CPU 93 returns to the process of step S60.

  When the upper key 96a or the lower key 96b is pressed in step S63, the CPU 93 changes the temperature value displayed on the first display panel 94a (step S64). Thereafter, the CPU 93 returns to the process of step S60. For example, when the display unit 94 is in the state of FIG. 7A in step S63, when the user presses the down key 96b, the display is displayed on the first display panel 94a as shown in FIG. 7B. Temperature value is changed to 127.3 ° C.

  By repeating the processing of step S60, step S61, step S63 and step S64, that is, by pressing the upper key 96a or the lower key 96b a predetermined number of times, the temperature value displayed on the first display panel 94a is set to a desired value. Can be changed.

  When the set key 96d is pressed in step S60, the CPU 93 radiates based on the temperature value currently displayed on the first display panel 94a, the detected temperature value given from the head unit 100A in FIG. 2, and the internal temperature value. The rate is calculated, and the calculated emissivity is stored in the storage unit 95 of FIG. 3 (step S65).

  Next, the CPU 93 calculates the temperature value of the measurement object based on the emissivity stored in the storage unit 95, the detected temperature value, and the internal temperature value (step S66).

  Thereafter, the CPU 93 proceeds to the process of step S44 in FIG. 14, sets the first and second 7-segment LEDs 101a and 101b to the normal lighting state, displays the temperature value on the first display panel 94a, and performs the second display. The emissivity is displayed on the panel 94b.

  As described above, in the present embodiment, the changed emissivity can be returned to the value before the emissivity setting process by pressing the mode key 96c during the emissivity change. Thereby, for example, when the user changes the emissivity to an incorrect value, the emissivity can be easily changed.

  Further, by pressing the mode key 96c while changing the temperature value, the changed temperature value can be returned to the value before the emissivity setting process, and thereafter, the emissivity can be changed. Thereby, for example, when the user changes the temperature value by mistake when changing the emissivity, the temperature value can be easily returned to the value before the change and the emissivity can be changed. As a result, the emissivity setting process can be performed accurately and quickly.

  In the present embodiment, when the process proceeds from step S57 in FIG. 16 to step S44 in FIG. 14, that is, when the user directly changes the emissivity, the temperature value is displayed in step S44. It is preferable that the first 7-segment LED 101a of the first display panel 94a blinks for a predetermined time (for example, 3 seconds). Further, when the process proceeds from step S66 in FIG. 17 to step S44 in FIG. 14, that is, when the CPU 93 calculates the emissivity from the temperature value changed by the user, the emissivity is displayed in step S44. It is preferable that the second 7-segment LED 101b of the second display panel 94b blinks for a predetermined time (for example, 3 seconds). By blinking the first and second 7-segment LEDs 101a and 101b as described above, the user can easily check the process of changing the emissivity and the temperature value.

(Other embodiments)
In the above embodiment, as shown in FIGS. 6, 7 and 8, the value displayed on the first display panel 94a by blinking the first 7-segment LED 101a or the second 7-segment LED 101b. And the user recognizes which of the values displayed on the second display panel 94b is adjustable, by turning on the first indicator light 102a or the second indicator light 102b. The user may recognize which of the values displayed on the first display panel 94a and the values displayed on the second display panel 94b is in an adjustable state.

  Further, the temperature value and emissivity of the measurement object may be calculated by the CPU 34 of the head unit 100A in FIG. 2, and the temperature value and emissivity of the measurement object are calculated in the storage unit 35 of the head unit 100A in FIG. And the calculated or changed temperature value and emissivity may be stored.

(Correspondence between each component of claim and each part of embodiment)
In the present embodiment, the thermopile 10 corresponds to infrared detection means, the first display panel 94a corresponds to a first display area, the second display panel 94b corresponds to a second display area, The key 96a and the lower key 96b correspond to the first and second adjustment means, the CPU 93 corresponds to the emissivity calculation means and the temperature calculation means, and the storage unit 95 corresponds to the storage means.

  The set key 96d corresponds to the first and second switching means, the first 7-segment LED 101a or the first indicator lamp 102a corresponds to the first instruction means, and the second 7-segment LED 101b or the second The display lamp 102b corresponds to the second instruction means, the CPU 93 corresponds to the first and second display form changing means, and the mode key 96c corresponds to the replacement means.

  The present invention can be used to detect a temperature change of an object based on infrared energy radiated from the object.

It is a block diagram of the radiation thermometer which concerns on embodiment of this invention. It is a block diagram of the head part of FIG. It is a block diagram of the main-body part of FIG. It is an external appearance perspective view which shows an example of the radiation thermometer which concerns on embodiment of this invention. It is a flowchart which shows an example of the emissivity setting process of CPU. It is the figure which showed an example of the state of the display part at the time of an emissivity setting process. It is the figure which showed an example of the state of the display part at the time of an emissivity setting process. It is the figure which showed an example of the state of the display part at the time of an emissivity setting process. It is a flowchart which shows an example of the emissivity setting process of CPU in 2nd Embodiment. It is a flowchart which shows an example of the emissivity setting process of CPU in 2nd Embodiment. It is a flowchart which shows an example of the emissivity setting process of CPU in 3rd Embodiment. It is a flowchart which shows an example of the emissivity setting process of CPU in 4th Embodiment. It is a flowchart which shows an example of the emissivity setting process of CPU in 4th Embodiment. It is a flowchart which shows an example of the emissivity setting process of CPU (refer FIG. 3) in 5th Embodiment. It is a flowchart which shows an example of the emissivity setting process of CPU (refer FIG. 3) in 5th Embodiment. It is a flowchart which shows an example of the emissivity setting process of CPU (refer FIG. 3) in 5th Embodiment. It is a flowchart which shows an example of the emissivity setting process of CPU (refer FIG. 3) in 5th Embodiment.

Explanation of symbols

10 Thermopile 11 Infrared Receiving Section 12 Thermistor 34, 93 CPU
35, 95 Storage unit 94 Display unit 94a First display panel 94b Second display panel 96 Operation setting unit 96a Up key 96b Down key 96d Set key 100 Radiation thermometer 100A Head unit 100B Main unit 101a First 7-segment LED
101b Second 7-segment LED
102a first indicator light 102b second indicator light

Claims (7)

Infrared detecting means for detecting infrared energy from the measurement object;
A display for displaying temperature values and emissivity;
First adjusting means for adjusting a temperature value displayed on the display unit;
Second adjusting means for adjusting the emissivity displayed on the display unit;
An emissivity calculating means for calculating an emissivity of the measurement object based on the temperature value adjusted by the first adjusting means and the infrared energy detected by the infrared detecting means;
Storage means for storing the emissivity adjusted by the second adjusting means or the emissivity calculated by the emissivity calculating means;
Temperature calculating means for calculating the temperature value of the measurement object based on the infrared energy detected by the infrared detecting means and the emissivity stored by the storage means;
The display unit displays the temperature value calculated by the temperature calculation unit or the temperature value adjusted by the first adjustment unit, and the emissivity calculated by the emissivity calculation unit or the second adjustment. A radiation thermometer characterized by displaying emissivity adjusted by means. First switching means for switching the temperature value displayed on the display unit to an adjustable state;
A second switching means for switching the emissivity displayed on the display unit to an adjustable state;
First indicating means for indicating that the temperature value can be adjusted by the first adjusting means;
2. The radiation thermometer according to claim 1, further comprising second indicating means for indicating that the emissivity can be adjusted by the second adjusting means. The first instruction means includes first display form changing means for changing a display form of the temperature value displayed on the display unit when the temperature value can be adjusted by the first adjusting means. Including
The second instruction means includes second display form changing means for changing a display form of the emissivity displayed on the display unit when the emissivity can be adjusted by the second adjusting means. The radiation thermometer according to claim 2, wherein the radiation thermometer is included. The radiation thermometer according to claim 3, wherein the display form is a blinking state. The first indicating means includes a first indicator lamp that is turned on when the temperature value can be adjusted by the first adjusting means.
The said 2nd instruction | indication means contains the 2nd indicator lamp which will be in a lighting state, when it is in the state in which adjustment of a temperature value is possible by the said 2nd adjustment means. Radiation thermometer according to crab. The display unit includes first and second display areas, wherein one of the first and second display areas displays a temperature value, and the other displays an emissivity. The radiation thermometer in any one of -5. 7. The radiation according to claim 6, further comprising a replacement means for switching the temperature value or emissivity displayed in the first display area and the emissivity or temperature value displayed in the second display area. thermometer.

Images