JP2013164326A - Measuring instrument - Google Patents

Abstract

In a measuring apparatus capable of non-contact temperature measurement and capable of measuring at least one other measurement purpose, an aiming light for temperature measurement is inadvertently provided to an unintended object around the measurer Provided is a measuring device capable of preventing the irradiation of the light.
An apparatus main body, a first measurement unit that measures the temperature of a measurement target part to be measured in a non-contact manner, and an aiming light emission part that emits aiming light for specifying the measurement target part to be measured. 34, a first display unit 8a1 for displaying a first display content indicating a measurement result by the first measurement unit, and a second unit for measuring at least one measurement purpose other than the temperature measured by the first measurement unit. And a second display unit 8a2 for displaying a second display content indicating a measurement result by the second measurement unit, and the aiming light emitting unit 34 is a side surface of the apparatus body 10, A configuration is provided on the side surface 10f other than the side surface 10e corresponding to the upper side of the second display content when viewed in the normal direction.
[Selection] Figure 4

Description

  The present invention relates to a measuring apparatus capable of non-contact temperature measurement and at least one other measurement purpose. For example, the present invention relates to a DMM (digital multimeter having a radiation thermometer function). ) Etc.

  2. Description of the Related Art Conventionally, there is a radiation thermometer that measures the temperature of a measurement target part to be measured in a non-contact manner from a position apart from the temperature. Generally, in a radiation thermometer, infrared radiation energy radiated from a measurement target part is detected by an infrared sensor, and the infrared radiation energy detected by the measurement circuit and a predetermined emissivity are used to determine the measurement target part. The temperature is calculated, and the calculated temperature is displayed on the display unit.

  Such a radiation thermometer may be provided with an aiming light emitting unit that emits aiming light for specifying a measurement target part to be measured. In this case, a spot where the temperature is actually measured can be easily formed by forming a spot of sighting light such as laser light in the visible light region or red LED light at or near the measurement target part. Can be visually recognized. The light receiving unit and the aiming light emitting unit of the infrared sensor are provided on the same side of the apparatus main body, typically on the front surface of the apparatus main body facing the front of the measurer in a normal use state. According to the radiation thermometer, the temperature of the measurement object can be measured easily and quickly without contact.

  Conventionally, a measurement device such as a DMM capable of measuring multiple measurement purposes (parameters) such as voltage, current, resistance, capacitance, etc., with the above-mentioned radiation thermometer function has been proposed. (Patent Document 1). According to this, it is not necessary to bring a radiation thermometer separately from a measuring device such as DMM for measuring voltage, current, resistance, capacitance, etc., for example, in maintenance / inspection work of a substation facility. Is very convenient.

JP-A-11-237284

  However, for example, when a measuring device such as DMM is provided with the function of a radiation thermometer, it has been found that there are the following problems to be improved.

  For example, in the DMM, generally, a measurement purpose (voltage, current, resistance, capacitance, etc.) and a measurement range are switched by turning a function switch, which is a rotary switch, to a desired position. Then, for example, after selecting a function or a measurement range using a function switch, measurement is started by pressing a measure switch provided separately from the function switch.

  When such a DMM has the function of a radiation thermometer, as shown in FIG. 8, the light receiving unit 210 and the aiming light emitting unit 211 of the infrared sensor for the function of the radiation thermometer are in a normal use state. It can be considered to be provided on the front surface 202 of the apparatus main body 201 facing the front of the measurer. The display unit 203 for displaying the measurement result is provided on the upper surface 204 of the apparatus main body 201 so that the upper side of the display content is on the front surface 202 side of the apparatus main body 201 so that the measurer can easily see in a normal use state. It is done. Then, like the other functions, it is conceivable that the function of the radiation thermometer is selected by the function switch 205 as described above, and the measurement is started by pressing the measure switch 206.

  When temperature measurement is performed using such a measuring device, the function switch 205 is turned to the temperature measurement position and the measure switch 206 is pressed. Then, aiming light is emitted from the aiming light emitting unit 211, and a spot of aiming light or the like is formed at or near the measurement target part to be measured in front of the measurer. And the temperature of the part to be measured specified by the aiming light is measured in a non-contact manner through the light receiving part of the infrared sensor.

  However, for example, when a measurer is using a measuring device for measuring a voltage, current, resistance, capacitance, or the like other than temperature, the function switch 205 is turned to a temperature measurement position, which is erroneous. When the measure switch 206 is pressed, the aiming light is inadvertently emitted from the aiming light emitting unit 211. And this sighting light may inadvertently be irradiated to the others ahead of the measurer. Laser light may be used as the aiming light, and even if a relatively safe laser such as class 2 (JIS C 6802) is used, it may cause discomfort to the irradiated person. There is sex. The same applies when a light source other than a laser such as a red LED is used.

  As another problem, in temperature measurement using a radiation thermometer, it is often necessary for the measurer to tilt the device body up, down, left, or right by hand in order to point the infrared sensor toward the measurement target part. .

  However, when the display unit is provided on the upper surface of the apparatus body as described above, the display content displayed on the display unit may be difficult to read depending on the position of the measurement target part to be measured. .

  In addition, when it is necessary to press the measure switch while tilting the device main body up, down, left, or right for temperature measurement, for example, the measure switch provided on the upper surface of the device main body and used for other measurement purposes can be operated easily. May get worse.

  Accordingly, an object of the present invention is to provide a measuring device capable of non-contact temperature measurement and at least one other measurement purpose. An object of the present invention is to provide a measuring apparatus that can prevent inadvertent irradiation of an object that is not to be performed.

  Another object of the present invention is to read the display content of the display unit during temperature measurement in a measuring apparatus capable of non-contact temperature measurement and at least one other measurement purpose measurement. It is to provide an easy measuring device.

  Another object of the present invention is to provide a measuring apparatus capable of non-contact temperature measurement and capable of measuring at least one other measurement purpose, with improved operability during temperature measurement. Is to provide.

  The above object is achieved by the measuring apparatus according to the present invention. In summary, the present invention provides an apparatus main body, a first measurement unit that measures the temperature of the measurement target part to be measured in a non-contact manner, and an aiming beam that emits aiming light for specifying the measurement target part to be measured. Measuring at least one measurement purpose other than the temperature measured by the light emitting unit, the first display unit displaying the first display content indicating the measurement result by the first measurement unit, and the first measurement unit A second display unit that displays a second display content indicating a measurement result by the second measurement unit, and the aiming light emitting unit is a side surface of the apparatus main body. Among these, the measuring apparatus is provided on a side surface other than the side surface corresponding to the upper side of the second display content when viewed in a normal direction.

  According to an embodiment of the present invention, the aiming light emitting portion is provided on a side surface corresponding to a lower side of the second display content when viewed in a normal direction among the side surfaces of the apparatus main body. . According to a preferred embodiment, the aiming light emitting portion is provided on a side surface of the device main body corresponding to an upper side of the first display content when viewed in a normal direction.

  According to an embodiment of the present invention, the temperature measurement switch for starting the emission of the aiming light from the aiming light emitting unit is provided separately from the switch for starting the measurement by the second measuring unit. According to a preferred embodiment, the temperature measurement switch for starting the emission of the aiming light from the aiming light emitting part is moved from the downstream side toward the upstream side in the emitting direction of the aiming light from the aiming light emitting part. Thus, emission of the aiming light is started.

  According to an embodiment of the present invention, there is provided a changeover switch for selectively enabling the measurement function by the first measurement unit and the measurement function by the second measurement unit, and the first and second display units. The display of the first and second display contents is selectively displayed when the measurement function by the first and second measurement units is enabled by the changeover switch, respectively. According to a preferred embodiment, the first display unit and the second display unit are configured as a common display device that selectively displays the first display content and the second display content. Yes. Preferably, the display device displays display contents by selectively turning on or off a plurality of display segments, and the first display contents and the second display contents are common. Are displayed using the display segment.

  According to an embodiment of the present invention, the plane of the first display unit for displaying the first display content is directed to the side opposite to the side surface of the apparatus main body on which the aiming light emitting unit is provided. Then, it can be raised with respect to the main surface of the apparatus main body.

  According to the present invention, in a measuring apparatus capable of non-contact temperature measurement and at least one other measurement purpose, the aiming light for temperature measurement is an unintended object around the measurement person. Inadvertent irradiation can be prevented. In addition, according to the present invention, when the temperature measurement is performed, the display unit can be raised, so that the display content of the display unit during the temperature measurement can be easily read. Further, according to the present invention, by providing a temperature measurement switch used for temperature measurement, operability during temperature measurement can be improved.

It is a general | schematic functional block diagram of the measuring apparatus which concerns on one Example of this invention. It is a front view of the measuring apparatus which concerns on one Example of this invention. 1A is a perspective view in which a top surface appears and FIG. 4B is a perspective view in which a bottom surface appears of a measuring apparatus according to an embodiment of the present invention. It is a front view of the measuring apparatus for demonstrating the display aspect of the display apparatus in the measuring apparatus which concerns on one Example of this invention. It is a perspective view which shows the state which is using the measuring apparatus which concerns on one Example of this invention for temperature measurement. It is a bottom view of the measuring apparatus which concerns on the other Example of this invention. It is the (a) perspective view of the measuring device concerning the further another example of the present invention, and (b) the elements on larger scale. It is a front view which shows an example of DMM which has a function of the conventional radiation thermometer.

  Hereinafter, a measuring apparatus according to an embodiment of the present invention will be described in more detail with reference to the drawings.

1. First, the overall configuration of the measuring apparatus according to one embodiment of the present invention will be described. In the present embodiment, the measuring apparatus 1 is a DMM having the function of a radiation thermometer.

  FIG. 1 is a schematic functional block diagram of a measuring apparatus 1 according to an embodiment of the present invention. FIG. 2 is a front view of the measuring apparatus 1 of the present embodiment.

  The measuring device 1 has a device body 10. The apparatus main body 10 is provided with a non-contact type temperature measuring device 2, an aiming device 3, a tester circuit 4, a measuring terminal 5, a control unit 7, a display device 8, an operation unit 9, and the like. The temperature measuring device 2 includes an infrared sensor 21, a sensor window 22, and the like. The aiming device 3 includes a laser light source 31, a half mirror 32, a mirror 33, aiming light windows 34 and 34, and the like.

  The control unit 7 controls each component of the measuring device 1 in accordance with a program and data stored in a memory (EEPROM: electrically erasable / writable ROM) as a storage means built in or connected thereto. Control. For example, an infrared sensor 21 of the temperature measuring device 2, a laser light source 31 of the sighting device 3, a tester circuit 4, a display device 8, an operation unit 9 and the like are connected to the control unit 7. Then, the control unit 7 controls the infrared sensor 21, the laser light source 31, the tester circuit 4, the display device 8, and the like. Further, the control unit 7 receives detection signals from the infrared sensor 21 and the tester circuit 4, an instruction signal for device setting, measurement start / stop, and the like from the operation unit 9.

  In the present embodiment, the infrared sensor 21 as the temperature detection unit is configured to include a thermopile sensor. The sensor window 22 is provided in the apparatus main body 10 so as to allow light incident on the infrared sensor 21 to pass therethrough. The sensor window 22 may be an opening provided on a side wall that constitutes a part of the apparatus main body 10, and is positioned in the opening or a detection surface (light incident surface) of the infrared sensor 21. A condensing lens may be provided between the two. The infrared sensor 21 detects the infrared ray I radiated from the measurement target part P of the measurement object S facing the detection surface, generates a detection signal having an intensity corresponding to the amount of energy, and outputs the detection signal to the control unit 7. . In this manner, the infrared sensor 21 detects the temperature as the measurement purpose (parameter) in a non-contact manner. The control unit 7 constitutes a first measurement unit together with the infrared sensor 21. The control unit 7 calculates the temperature in the measured part P based on the energy amount of the infrared ray I indicated by the detection signal output from the infrared sensor 21. Further, the control unit 7 outputs a signal for displaying information indicating the temperature on the display device 8 to the display device 8.

  In the present embodiment, the sighting device 3 emits two laser beams L as the sighting light. The laser light source 31 emits laser light L in the direction in which the detection surface of the infrared sensor 21 is directed. The half mirror 32 is disposed so as to form a predetermined angle (for example, 45 °) with respect to the traveling direction (emission direction) of the laser light L, and transmits a part of the laser light L and a part thereof. Reflected toward the mirror 33. The mirror 33 is arranged so as to form a predetermined angle (for example, 45 °) with respect to the traveling direction of the laser light L reflected by the half mirror 32, and the traveling direction of the laser light L transmitted through the half mirror 32. The laser beam L from the half mirror 32 is reflected in the same direction as the (emission direction). In this case, the half mirror 32 and the mirror 33 are opposed to each other with the infrared sensor 21 interposed therebetween, and are disposed at positions separated from the infrared sensor 21 by the same distance. The aiming light windows 34 and 34 are provided in the apparatus main body 10 so as to allow the laser light L transmitted through the half mirror 32 and the laser light L reflected by the mirror 33 to pass therethrough. The aiming light windows 34 and 34 may be openings provided in a side wall that constitutes a part of the apparatus main body 10, and a cover that transmits laser light may be provided in the opening. .

  The tester circuit 4 may be the same as that of a general DMM (digital multimeter). In this embodiment, the tester circuit 4 is configured to be able to measure voltage (AC voltage, DC voltage), current (AC current, DC current), resistance, and capacitance as measurement purposes (parameters). ing. The tester circuit 4 constitutes a second measurement unit that measures at least one measurement purpose other than the temperature measured by the first measurement unit. The tester circuit 4 includes a voltage generation circuit, a current detection circuit, a voltage detection circuit, an A / D conversion circuit, an arithmetic circuit, and the like. The tester circuit 4 repeatedly measures an electrical parameter for a measurement target at a predetermined cycle, and The target parameter value is output as measurement data to the control unit 7. For example, when measuring the voltage value of the voltage generated in the measurement object, the voltage detection circuit detects a voltage signal generated between both ends of the measurement object in the specified measurement range (measurement range) in the tester circuit 4. Then, the A / D conversion circuit converts the voltage signal into digital data, and the arithmetic circuit calculates a voltage value based on the digital data and the information of the designated measurement range, and controls the control unit as measurement data. 7 is output. Based on the measurement data, the control unit 7 outputs a signal for displaying a measurement result, for example, a voltage value on the display device 8 to the display device 8.

  The apparatus main body 10 is provided with a pair of measurement terminals 5 (51, 52). One measurement terminal is the ground side measurement terminal 51, and the ground side test lead 61, which is one of the pair of test leads 6 (61, 62), is detachably connected. The other measurement terminal is a line side measurement terminal 52, and a line side test lead 62, which is the other test lead, is detachably connected. The pair of test leads 6 are connected to the tester circuit 4 through the pair of measurement terminals 5.

  In this embodiment, the display device 8 is a liquid crystal display panel as a digital display. The display device 8 displays information indicating the measurement result in accordance with a signal from the control unit 7 according to the designated measurement purpose. As will be described in detail later, in the present embodiment, the display device 8 includes a first display unit that displays a first display content indicating a measurement result by the first measurement unit, and a second measurement unit. It has a function with the 2nd display part which displays the 2nd display contents which show a measurement result. That is, in the present embodiment, the first display unit and the second display unit are configured as a common display device 8 that selectively displays the first display content and the second display content.

  In the present embodiment, the operation unit 9 includes a function switch 91 and a measure switch 92. The function switch 91 as a changeover switch is composed of a rotary switch, and the desired function can be validated by turning the instruction unit 91a serving also as a knob to the position of the desired function in the function display 91b. The control unit 7 controls each unit of the measuring apparatus 1 in order to validate a desired function according to the position of the instruction unit 91 a of the rotary switch 91. In this embodiment, the rotary switch 91 includes, as its switching stage, temperature measurement (radiation thermometer), voltage measurement, current measurement, resistance measurement, capacitance measurement, and OFF (the power supply of the measuring device 1 is turned off). . For voltage measurement and current measurement, both AC and DC may be provided, or a plurality of ranges (measurement ranges) may be provided. In order to facilitate understanding of the present invention, only the temperature measurement (“° C.” in the figure) and the voltage measurement (“V” in the figure) are shown as the switching stage of the rotary switch. The measurement switch 92 as a measurement switch is used for starting or stopping (holding) the measurement with the function selected by the rotary switch 91.

2. Arrangement As shown in FIGS. 3A and 3B, in this embodiment, the apparatus main body 10 of the measuring apparatus 1 has an upper surface 10a, a bottom surface 10b, a left side surface 10c, a right side surface 10d, a front surface 10e, and a back surface 10f. It has a substantially parallelepiped shape. The top surface 10a (or the bottom surface 10b), the left side surface 10c, the right side surface 10d, the front surface 10e, and the back surface 10f are substantially orthogonal to each other.

  In the present embodiment, the display surface 8 a of the display device 8, the function switch 91 of the operation unit 9, and the measure switch 92 are arranged on the upper surface 10 a of the apparatus body 10.

  In this embodiment, the sensor window 22 as the light receiving part of the temperature measuring device 2 and the aiming light windows 34 and 34 as the aiming light emitting parts of the aiming device 3 are provided on the back surface 10f, which is the same side surface of the apparatus main body 10. Has been placed. In particular, in the present embodiment, the sensor window 22 and the aiming light windows 34 and 34 are provided on the detection end portion 11 provided so as to protrude from the plane of the back surface 10f of the apparatus main body 10. By providing the detection end 11 that slightly protrudes in this way, the measurer can intuitively recognize the detection direction when the measuring device 1 is used for temperature measurement, that is, the emission direction of the aiming light. There is. However, the detection end 11 does not need to protrude from the other part of the back surface 10f.

  In the present embodiment, when performing measurement using the tester circuit 4, for example, voltage measurement, the measurement apparatus 1 is configured such that the measurer displays the display surface 8 a of the display device 8 provided on the upper surface 10 a of the apparatus body 10. Is intended to be arranged so that the front surface 10e faces the front of the measurer. That is, in this embodiment, as shown in FIG. 4A, in this state, the display content indicating the measurement result is displayed on the display surface 8a of the display device 8 in the normal orientation. In the illustrated example, the upper side when the display content (“20.0 V”) indicating the voltage value on the display surface 8 a of the display device 8 is viewed in the normal direction is on the front surface 10 e side of the device main body 10. In this case, typically, the measurer holds the apparatus main body 10 on the front side of the measurer in a direction in which the display content can be viewed in the normal direction, and performs voltage measurement using the test leads 6. Do. Therefore, in this state, the front surface 10e of the apparatus main body 10 faces the front of the measurer.

  On the other hand, in this embodiment, when performing temperature measurement, the measuring device 1 is in a normal use state where the measurer can visually recognize the display surface 8a of the display device 8 provided on the upper surface 10a of the device body 10. It is intended to be arranged so that the back surface 10f faces the front of the measurer. That is, in this embodiment, as shown in FIG. 4B, in this state, the display content indicating the measurement result is displayed in the normal direction on the display surface 8a of the display device 8. In the illustrated example, the upper side when the display content (“23.0 ° C.”) indicating the temperature on the display surface 8 a of the display device 8 is viewed in the normal direction is on the back surface 10 f side of the device body 10. In this case, typically, the measurer holds the apparatus main body 10 on the front side of the measurer in a direction in which the display content can be visually recognized in a normal direction, and measures using the function of the radiation thermometer. The temperature of the part to be measured P of the object S is measured. Accordingly, in this state, the back surface 10f of the apparatus main body 10 faces the front of the measurer.

  In addition, the normal orientation of the display content is the case where the original upper side in social convention is the upper side and the lower side is the lower side so that the original information indicated by the display content can be recognized. The direction. The upper and lower in this case does not mean only a strict vertical direction. If the display content is character information, it is the direction when the characters are displayed such that the upper side is the upper side and the lower side is the lower side for social wisdom. However, the display content is not limited to character information, and may be any form such as a pointer-type meter as long as it indicates a measurement result. Usually, along with the measurement result, various setting information corresponding to the measurement function are displayed in the same direction.

  As described above, in this embodiment, the aiming light windows 34 and 34 as the aiming light emitting portions are provided on the back surface 10 f of the side surface of the apparatus main body 10. The rear surface 10f is a front surface 10e as a side surface corresponding to the upper side of the second display content indicating at least one measurement result other than the temperature when viewed in a normal direction among the side surfaces of the apparatus body 10. It is one of the other aspects. And the 1st display part which displays the 1st display content which shows the measurement result of temperature WHEREIN: The upper side of the said 1st display content when it sees in a regular direction is an aiming light window as an aiming light emission part. The first display content is displayed so as to be on the side surface side where 34 and 34 are provided.

  In the present embodiment, the liquid crystal display panel as the display device 8 is a monochrome liquid crystal panel that selectively turns on or off a plurality of preset display elements (display segments) (segment method). The display device 8 can display predetermined information such as measured values and setting states under the control of the control unit 7.

  In particular, in the present embodiment, the display device 8 serves as the first display unit, and a plurality of display elements 8a1 (FIG. 4B) set in advance so as to display the first display content indicating the temperature measurement result. )) And a plurality of display elements 8a2 (FIG. 4 (a)) set in advance so as to be able to display the second display content indicating the measurement result other than the temperature as the second display unit. ing. Then, the control unit 7 selectively uses the first display unit and the second display unit in accordance with the function selection by the function switch 91, and displays the first display contents and temperature indicating the temperature measurement results, respectively. Second display contents indicating measurement results other than are displayed. Here, it is preferable that all or a part of the first and second display contents is displayed using a common display segment. For example, the numerical values displayed in 7 segments as shown in FIGS. 4A and 4B can be made common. Compared to the case where each display segment of the first and second display contents is provided separately in one common display device, the display segment can be enlarged by using the common display segment as described above ( Can display large characters). Alternatively, if the measuring device is small, the display device can be made small to suit it.

  The present invention does not limit the method of the display device 8 at all. For example, a liquid crystal display panel (dot matrix) capable of displaying arbitrary characters or graphic information or a liquid crystal display panel capable of color display is used. You can also. Of course, the display device 8 is not limited to a liquid crystal display panel, and may be a display device based on any other principle such as an organic EL display.

3. Temperature Measurement Next, the operation of the measurement apparatus 1 when performing temperature measurement will be described with reference to FIG. FIG. 5 is a perspective view showing a state in which the measuring apparatus 1 of this embodiment is used as a radiation thermometer.

  First, the measurer turns the function switch 91 to set the instruction unit 91a to the temperature measurement position in the function display 91b. As a result, the function switch 91 outputs an instruction signal indicating that the function of the radiation thermometer has been selected to the control unit 7. Then, the control unit 7 displays on the display surface 8 a of the display device 8, for example, a unit “° C.” (further, a previous measurement result or a default value such as “0 ° C.”) as display contents at the time of temperature measurement. The contents are displayed in reverse from the display contents at the time of measurement other than temperature.

  By performing such an operation, the measurer can surely recognize that the measuring device 1 is being used as a radiation thermometer, so that the measurement switch 92 is inadvertently pressed to aim at an unintended target. It is possible to prevent misfiring of aiming light that irradiates light.

  Next, the operator presses the major switch 92. As a result, the measure switch 92 outputs an instruction signal for operating the measuring device 1 as a radiation thermometer to the control unit 7. Then, the control unit 8 controls the laser light source 31 to emit laser light L as aiming light. Next, a part of the laser light L emitted from the laser light source 31 passes through the half mirror 32 and is irradiated to the measuring object S, and a part of the laser light L is reflected by the half mirror 32 toward the mirror 33. The Further, the laser beam L reflected by the half mirror 32 is reflected by the mirror 33 and applied to the measuring object S. At this time, the portion of the measuring object S irradiated with the laser light L is visually recognized as a red point (spot) (hereinafter, this red point is also referred to as “marker M”).

  Next, by adjusting the position where the measurer holds the measuring device 1 and the angle of the measuring device 1, the two markers M are placed so that the desired part to be measured P is located at the center of the two markers M. Align. Thereby, since the alignment of the marker M and the measured part P can be easily performed, the detection surface of the infrared sensor 21 can be reliably opposed to the measured part P.

  Next, the infrared sensor 21 detects the infrared ray I emitted from the part P to be measured, and outputs a detection signal corresponding to the energy amount of the infrared ray I to the control unit 7. As described above, since the detection surface of the infrared sensor 21 is accurately opposed to the measured portion P, the infrared sensor 21 reliably detects the infrared ray I from the measured portion P. Next, the control unit 4 calculates the temperature in the measured part P based on the energy of the infrared ray I indicated by the detection signal. Next, the control unit 7 outputs temperature data indicating the temperature (23.0 ° C. in the illustrated example) to the display device 8. Thereby, the display device 8 displays the temperature value indicated by the temperature data.

  Here, as described above, when performing measurement other than temperature measurement using the measurement apparatus 1, the back surface 10f of the apparatus body 10 faces the measurer side (FIG. 4A). In this embodiment, the sensor window 22 and the aiming light windows 34 and 34 are provided on the back surface 10f of the apparatus main body 10 facing the measurer. Therefore, when performing measurements other than temperature, the sensor window 22 and the aiming light windows 34 and 34 face the measurer side. Therefore, even if the measuring device 1 is used for measurements other than temperature, even if the function switch 91 is set to the temperature measurement position and the measure switch 92 is accidentally pressed, the aiming light is measured. It only irradiates the person's abdomen, chest, etc., and for example, it is possible to prevent inadvertent irradiation to others in front of the measurer.

  As described above, according to the present embodiment, the measuring device 1 has, as the side surface other than the side surface facing the front of the measurer when performing measurements other than the temperature, on the back surface 10f of the device main body 10, Aiming light windows 34 are provided. That is, in the present embodiment, the measuring apparatus 1 performs temperature measurement because the sensor window 22 and the aiming light windows 34 and 34 for measuring temperature are at hand of the apparatus main body 10 when performing measurements other than temperature. In some cases, the apparatus main body 10 is turned over and used. Thereby, when performing measurements other than temperature, it is possible to prevent the aiming light from being inadvertently irradiated to another person in front of the measurer. Further, when the temperature measurement is performed, the display on the display device 8 is reversed from that when the measurement other than the temperature is performed. Thereby, while making it easy to read the measurement result at the time of measuring temperature, the measurer can intuitively recognize that the measuring device 1 is used as a radiation thermometer by looking at the display on the display device 8. It is possible to prevent misfiring of aiming light.

  As described above, according to the present embodiment, in the measuring apparatus 1 that can perform non-contact temperature measurement and can measure at least one other measurement purpose, the aiming light for temperature measurement is measured by the operator. Inadvertent irradiation of an unintended object in front of can be prevented.

Example 2
Next, another embodiment of the present invention will be described. The basic configuration and operation of the measuring apparatus of this embodiment are the same as those of the first embodiment. Therefore, elements having the same functions or configurations as those of the measurement apparatus of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In Example 1, when measuring temperature, the temperature measurement was started by pressing the major switch 92 provided on the upper surface 10a of the apparatus main body 10 and used for measuring other than temperature.

  In this embodiment, as shown in FIG. 6, a bottom surface major switch 93 as a temperature measurement switch is provided on the bottom surface 10 b of the apparatus body 10. In the present embodiment, the bottom surface major switch 93 is provided in addition to the major switch 92 provided on the upper surface 10a as in the first embodiment. The bottom surface major switch 93 is used when measuring temperature, and the major switch 92 provided on the upper surface 10a is used when measuring other than temperature.

  In particular, in the present embodiment, the bottom surface major switch 93 moves the sighting light L from the downstream side to the upstream side in the emission direction of the sighting light L from the sighting light windows 34 and 34 as the sighting light emitting unit. It is configured to start emission. That is, in the present embodiment, the bottom surface 10b of the apparatus main body 10 has a concave portion 10b1 extending along the axis extending from the back surface 10f side where the aiming light windows 34 and 34 are provided to the front surface 10e side opposite thereto. A bottom surface major switch 93 that is formed and is movable along the axis in the recess 10b1 is attached. The bottom surface major switch 93 is urged toward the back surface 10f by an urging means (not shown) provided inside the apparatus main body 10, and the operator presses the bottom surface major switch 93 against the urging force. 10 is turned on by pressing it so as to be retracted.

  In addition to the major switch 92 that starts measurement when performing measurements other than temperature, a bottom surface major switch 93 that starts measurement when performing temperature measurement is provided. 1 is used, even if the function switch 92 is set to the temperature measurement position and the measure switch 91 for starting measurement other than temperature is accidentally pressed, the aiming light is emitted. Absent. Further, in this embodiment, the bottom surface major switch 93 is configured to be turned on by pulling it forward like a trigger when performing temperature measurement, and when the temperature measurement is performed, the back surface 10f of the apparatus main body 10 is turned on. It is easy to turn on in a state where the is directed to the front of the measurer. Conversely, the bottom surface major switch 93 is difficult to turn on when the front surface 10e of the apparatus main body 10 is directed forward when performing measurements other than temperature. Therefore, if the measuring device 1 is used for measurements other than temperature, even if the function switch 91 is set to the temperature measurement position, it is possible to prevent the bottom measure switch 93 from being accidentally pressed. Can do.

  As described above, according to the present embodiment, since the major switch for temperature measurement is provided on the bottom surface 10b of the apparatus main body 10, operability close to that of a gun type can be obtained. That is, even when the apparatus main body 10 is tilted up and down and left and right to irradiate the measurement target P of the measurement target S with the aiming light L, good operability can be obtained.

  As described above, according to the present embodiment, the operability in the temperature measurement is improved in the measuring apparatus 1 that can perform the non-contact temperature measurement and can measure at least one other measurement purpose. be able to. Further, a bottom surface major switch 93 for starting the emission of the aiming light is provided separately from the major switch 92 for measuring other than the temperature, and is configured to be particularly easy to press when performing temperature measurement. Thereby, it is possible to more reliably prevent the aiming light from being emitted carelessly.

Example 3
Next, still another embodiment of the present invention will be described. The basic configuration and operation of the measuring apparatus of this embodiment are the same as those of the first embodiment. Therefore, elements having the same functions or configurations as those of the measurement apparatus of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 7A, in the present embodiment, the display device 8 is configured so that the display surface 8a can be raised with respect to the main surface of the device body 10 represented by the upper surface 10a. Yes. In particular, in the present embodiment, the display device 8 displays the display so as to face the side opposite to the back surface 10f of the device main body 10 facing the front of the measurer when performing temperature measurement, that is, the front surface 10e side of the device main body 10. Surface 8a can be raised. That is, in the present embodiment, the plane of the first display unit that displays the first display content indicating the temperature measurement result is the side surface 10f provided with the aiming light windows 34, 34 among the side surfaces of the apparatus body 10. Can be raised with respect to the main surface of the apparatus main body 10 toward the opposite side.

  As shown in FIG. 7B, in this embodiment, the display device 8 that is a liquid crystal display panel includes at least a display surface 8b (in this embodiment as a whole), but rotates around the rotation shaft 8b. It is connected to the apparatus main body 10 by a possible support member 8c. Although not limited to this, the angle θ of the plane substantially parallel to the display surface 8a of the display device 8 with respect to the main surface of the device body 10 is 0 ° to 45 °, more preferably 0 ° to 90 °, and more preferably. Preferably, it can be changed in the range of 0 ° to 180 °.

  When performing temperature measurement, depending on the position of the part to be measured P of the measuring object S, it may be necessary to tilt the apparatus body 10 vertically and horizontally. Even in this case, in this embodiment, the measurement value can be easily read by raising the display surface 8 a of the display device 8.

  Note that this embodiment may be implemented in combination with Embodiment 2, and in that case, both the operability and the visibility of display when performing temperature measurement can be improved.

  As described above, according to the present embodiment, the display surface 8a of the display device 8 can be raised so as to face the side opposite to the measurement target S when performing temperature measurement. Thereby, even if the apparatus main body 10 is tilted when performing temperature measurement, the measured value is easy to read.

  As described above, according to the present embodiment, in the measurement apparatus 1 that can perform non-contact temperature measurement and can perform measurement for at least one other measurement purpose, the display content of the display unit at the time of temperature measurement Can be easily read.

Others While the present invention has been described with reference to specific embodiments, the present invention is not limited to the above-described embodiments.

  For example, in the above-described embodiment, the tester circuit of the measurement device is configured to be capable of measuring a plurality of measurement purposes such as voltage, current, resistance, and capacitance. As long as it can measure at least one of the measurement purposes, it is sufficient. The measuring device is not limited to a DMM having a radiation thermometer function, and may be an analog tester having a radiation thermometer function, for example.

  In the above-described embodiment, two laser beams are irradiated to the measurement object as the aiming light. However, an arbitrary number of three or more laser beams may be irradiated to the measurement object as the aiming light. In this case, a region surrounded by an arbitrary number of three or more laser beams can be specified as the part to be measured. Moreover, you may irradiate a measuring object with one laser beam as aiming light. In this case, the measured part itself can be indicated by the laser beam. The aiming light is not limited to a marker that is visually recognized as a red dot (spot), and may be visually recognized in any other shape such as a cross, and the color is other than red. Can be any color. The aiming light is not limited to a laser, and various types of visible light may be used, and invisible light such as infrared rays and ultraviolet rays may be used as desired. For example, a red LED marker can be suitably used as the aiming light.

  In the above-described embodiment, the aiming light emitting portion is disposed on the back surface of the apparatus main body, but the present invention is not limited to this. As described above, by providing an aiming light emitting part on the back surface, which is the side opposite to the front surface of the device body, facing forward when performing measurements other than temperature, it is possible to accidentally aim when performing measurements other than temperature. Even if the light is emitted, the aiming light is applied to the abdomen and chest of the measurer, and it is possible to more reliably prevent the aiming light from being accidentally applied to others around the measurer. However, by providing an aiming light emitting part on the side of the main body of the device other than the side facing forward when performing measurements other than temperature, the aiming light is inadvertently irradiated to others in front of the measurer. Can be prevented. For example, of the side surface of the apparatus main body, the aiming light emitting unit is provided on the side surface corresponding to the left or right side of the second display content indicating the measurement result other than the temperature when viewed in the normal direction, or the bottom surface of the apparatus main body. It may be provided. In this case, the light receiving part of the infrared sensor is also provided on the same side surface.

  In the above-described embodiment, the display content on the display surface of the common display device is inverted between the temperature measurement and the measurement other than the temperature. However, the present invention is not limited to this, and a separate display device that is selectively used at the time of temperature measurement and at the time of measurement other than temperature may be provided. And each display apparatus can be comprised so that the display content which shows a measurement result may be displayed so that the upper side of a display content may become a front side of a measurement person at the time of each measurement.

  In the above-described embodiments, the apparatus main body of the measuring apparatus has been described as having a substantially parallelepiped shape, but is not limited thereto, and may be any other shape such as a substantially cylindrical shape. .

DESCRIPTION OF SYMBOLS 1 Measuring apparatus 2 Non-contact-type temperature measuring device 3 Aiming device 4 Tester circuit 7 Control part 8 Display apparatus 9 Operation part 10 Apparatus main body 11 Detection end 21 Infrared sensor 22 Sensor window 31 Laser light source 34 Aiming light window

Claims (9)

The device body;
A first measurement unit that measures the temperature of the measurement target part to be measured in a non-contact manner;
An aiming light emitting unit that emits aiming light for specifying a measurement target part to be measured;
A first display for displaying a first display content indicating a measurement result by the first measurement unit;
A second measurement unit for measuring at least one measurement purpose other than the temperature measured by the first measurement unit;
A second display unit for displaying a second display content indicating a measurement result by the second measurement unit;
Have
The aiming light emitting portion is provided on a side surface other than the side surface corresponding to the upper side of the second display content when viewed in a normal direction among the side surfaces of the apparatus main body. .   The said aiming light emission part is provided in the side surface corresponding to the lower side of the said 2nd display content when it sees in a normal direction among the side surfaces of the said apparatus main body. The measuring device described.   The aiming light emitting portion is provided on a side surface of the apparatus main body corresponding to an upper side of the first display content when viewed in a normal direction. The measuring device described in 1.   The temperature measuring switch for starting the emission of the aiming light from the aiming light emitting unit is provided separately from the switch for starting the measurement by the second measuring unit. The measuring device according to item.   The temperature measurement switch for starting the emission of the aiming light from the aiming light emitting unit is moved from the downstream side to the upstream side in the emitting direction of the aiming light from the aiming light emitting unit, thereby emitting the aiming light. The measurement apparatus according to claim 1, wherein the measurement device is started.   A changeover switch for selectively enabling the measurement function by the first measurement unit and the measurement function by the second measurement unit; and the first and second display units are respectively switched by the changeover switch. 6. The display of the first and second display contents is selectively displayed when the measurement function by the first and second measurement units is validated. The measuring device described in 1.   The first display unit and the second display unit are configured as a common display device that selectively displays the first display content and the second display content. The measuring device according to any one of 1 to 6.   The display device displays display content by selectively turning on or off a plurality of display segments, and the first display content and the second display content are the same display segment. The measurement apparatus according to claim 7, wherein the measurement apparatus is displayed using the measurement apparatus.   The plane of the first display unit that displays the first display content is directed to the side opposite to the side surface of the apparatus main body where the aiming light emitting unit is provided, and with respect to the main surface of the apparatus main body. The measuring apparatus according to claim 1, wherein the measuring apparatus can be raised.

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