CN111562014A - A surface source calibration device for infrared measurement and infrared measurement equipment - Google Patents

Abstract

The embodiment of the present invention discloses a surface source calibration device for infrared measurement and infrared measurement equipment, comprising: a plurality of flat water tanks, each flat water tank is attached with a high emissivity on the outer surface of the side facing the infrared measurement equipment A soaking plate made of materials; a water inlet tank, which is provided with a first electric heater, a first water supply pump, and a first temperature sensor electrically connected to the first electric heater and the first water supply pump, respectively. When the sensor detects that the water temperature in the water inlet tank is heated to the first temperature by the first electric heater, the first water supply pump is started to supply water to each flat water tank; the return water tank is provided with a second electric heater and a second water supply pump. , and a second temperature sensor electrically connected to the second electric heater and the second water supply pump, respectively, when the second temperature sensor detects that the water temperature in the return tank is heated to the first temperature by the second electric heater, the second temperature sensor is activated. The water pump supplies water to the intake tank. The radiation temperature is uniform, and the calibration size of the surface source can be adjusted.

Description

A surface source calibration device for infrared measurement and infrared measurement equipment

technical field

The invention relates to the technical field of measurement, in particular to a surface source calibration device and infrared measurement equipment for infrared measurement.

Background technique

When using the calibrated infrared radiation measurement equipment to measure the target of the marine ship, for different measurement targets, the requirements for the radiation temperature range and opening size of the calibration device of the surface source blackbody radiation source are different, so there is no standard surface on the market. The source blackbody radiation source is sold, and the user can only customize and develop the corresponding surface source blackbody radiation source according to the technical indicators such as the radiation temperature range and opening size required by himself. The surface source blackbody radiation sources currently existing on the market generally use electric heating films, electric heaters and other heating devices to control the radiation temperature of the front panel of the surface source blackbody radiation source. Blocks of stainless steel plate, aluminum plate and other materials, the size is processed according to user requirements.

However, when using the existing technical solution to measure the infrared radiation of the ship target, the following problems still exist:

(1) Due to the large size of the ship target, in order to make the field of view of the infrared radiation measurement equipment cover the entire ship, the infrared radiation measurement is generally carried out at a relatively long distance. Similarly, the calibration of the infrared radiation measurement equipment, It is best to do it in the same environment and at the same distance. However, the surface source blackbody radiation source on the market uses electric heating to control the temperature of the entire stainless steel plate or aluminum plate, so it is difficult to achieve a large scale, because the larger the scale, the more difficult it is to realize the entire stainless steel plate. or uniform heating of aluminum plates. In addition, according to the existing technical solution, when the scale of the surface source blackbody radiation source is not very large, the uniformity of the radiation temperature also has a certain difference;

(2) The larger the size of the existing surface source blackbody radiation source, the greater the heat dissipation of the radiation front panel, and the instability of the surrounding environment is superimposed, which is likely to cause fluctuations in the radiation temperature of the surface source blackbody radiation source and the upper limit of the heating temperature Limited.

SUMMARY OF THE INVENTION

In view of the above problems in the prior art, the embodiments of the present invention provide a surface source calibration device and infrared measurement equipment for infrared measurement that can ensure uniform radiation temperature and can adjust the calibration size of the surface source.

An embodiment of the present invention provides a surface source calibration device for infrared measurement, including:

A plurality of flat water tanks, each flat water tank is provided with a soaking plate of high emissivity material on the outer surface of the side facing the infrared measuring device;

The water inlet tank is provided with a first electric heater, a first water supply pump, and a first temperature sensor electrically connected to the first electric heater and the first water supply pump, respectively. At the first temperature When the sensor detects that the water temperature of the water in the water inlet tank is heated to a first temperature by the first electric heater, the first water supply pump is started to supply water to each of the flat water tanks, wherein each of the The flat water tanks are all communicated with the water supply pipe of the first water supply pump through the water inlet provided at the bottom, and each of the flat water tanks is communicated with the water inlet pipe of the return tank through the water outlet provided at the top;

The return water tank is provided with a second electric heater, a second water supply pump, and a second temperature sensor electrically connected to the second electric heater and the second water supply pump, respectively. When it is detected that the water temperature of the water in the return tank is heated to the first temperature by the second electric heater, the second water supply pump is started to supply water to the water inlet tank, wherein each The temperature of the water flowing into the return tank from the flat water tank is a second temperature, and the second temperature is lower than the first temperature.

In some embodiments of the present invention, a first thermal insulation layer is affixed on the side of each flat water tank on which the soaking plate is not affixed.

In some embodiments of the present invention, the surface source calibration device for infrared measurement further includes:

The casing is used for fixing and encapsulating the plurality of flat water tanks, the soaking plate and the first thermal insulation layer.

In some embodiments of the present invention, the water outlet pipes connected to the water outlet of each flat water tank are formed with a circuit at the same preset height, wherein the preset height is not lower than the plurality of flat water tanks The height of the outlet of the flat tank with the outlet of the highest height.

In some embodiments of the present invention, the water outlet pipe connected to the water outlet of each flat water tank is communicated with the water inlet pipe of the return water tank.

In some embodiments of the present invention, the water outlet pipe connected to the water outlet of each flat water tank is wrapped with a second thermal insulation layer.

In some embodiments of the present invention, the surface source calibration device for infrared measurement further includes:

a controller electrically connected to the first electric heater, the first water supply pump, the first temperature sensor, the second electric heater, the second water supply pump and the second temperature sensor , to control the first electric heater to heat the water in the water inlet tank, and when the first temperature sensor detects that the temperature of the water in the water inlet tank reaches the first temperature, control the The first water supply pump starts water supply, and the controller is also used to control the second electric heater to heat the water in the return water tank, and the second temperature sensor detects that the water in the return tank is When the temperature of the water reaches the first temperature, the second water supply pump is controlled to start water supply.

In some embodiments of the present invention, the controller is further configured to, based on the second temperature, control the heating output power of the second electric heater.

In some embodiments of the present invention, both the water supply pipe and the water inlet pipe are wrapped with a third thermal insulation layer.

The embodiment of the present invention also provides an infrared measurement device, comprising:

Surface source calibration device for infrared measurement as described above.

Compared with the prior art, the beneficial effect of the surface source calibration device for infrared measurement and the infrared measurement device provided by the embodiment of the present invention is that the first electric heater in the water inlet Heating is performed, and when heated to the first temperature, water is supplied to the plurality of flat water tanks through the first water supply pump, and at the same time, high emissivity materials are attached to the outer surface of each flat water tank facing the infrared measuring device. The above-mentioned surface source calibration device for infrared measurement has a higher thermal conductivity (2 orders of magnitude higher than that of the radiation layer of the traditional calibration device, such as the heat conduction system of the aluminum radiation layer), and has a larger surface area. The calibration size of the source can also be adjusted by adjusting the water volume of the flat water tank and the side area of a single deformed water tank facing the infrared measurement device. In addition, by using water with a larger specific heat capacity for heat transfer, it can be The radiation temperature of the surface source calibration device can be better controlled, and the fluctuation of the radiation temperature of the target surface of the surface source calibration device caused by the unstable surrounding environment can be suppressed.

Description of drawings

1 is a schematic diagram of the overall structure of a surface source calibration device for infrared measurement according to an embodiment of the present invention;

2 is a side view of a plurality of flat water tanks of the surface source calibration device for infrared measurement according to an embodiment of the present invention;

3 is a schematic structural diagram of a plurality of flat water tanks of a surface source calibration device for infrared measurement according to an embodiment of the present invention;

4 is a schematic diagram of a soaking plate of a surface source calibration device for infrared measurement according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a first insulation layer of a surface source calibration device for infrared measurement according to an embodiment of the present invention.

Reference number:

1. Flat water tank; 2. Vaporizing plate; 3. Water inlet tank; 31. The first electric heater;

32, the first water supply pump; 33, the first temperature sensor; 4, the water supply pipe; 5, the water inlet pipe;

6. Return tank; 61. Second electric heater; 62. Second water supply pump; 63. Second temperature sensor;

7. The first insulation layer; 8. The shell; 9. The water outlet pipe.

Detailed ways

In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Various aspects and features of the present application are described herein with reference to the accompanying drawings.

These and other features of the present application will become apparent from the following description of preferred forms of embodiment, given as non-limiting examples, with reference to the accompanying drawings.

It is also to be understood that although the application has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalents of the application with certainty, which have the characteristics as claimed in the claims and are therefore located in the places hereby recited. within the limited scope of protection.

The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

Specific embodiments of the present application are hereinafter described with reference to the accompanying drawings; however, it is to be understood that the claimed embodiments are merely examples of the present application, which may be implemented in various ways. Well-known and/or repeated functions and constructions have not been described in detail to discern the true intent from a user's historical operation to avoid obscuring the application with unnecessary or redundant detail. Therefore, specific structural and functional details claimed herein are not intended to be limiting, but merely serve as a basis for the claims and a representative basis for teaching one skilled in the art to variously employ the present invention in substantially any suitable detailed structure. Application.

This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which can all refer to the same in accordance with the present application or one or more of different embodiments.

An embodiment of the present invention provides a surface source calibration device for infrared measurement, as shown in FIG. 1 to FIG. 5 , including:

A plurality of flat water tanks 1, each flat water tank 1 is provided with a soaking plate 2 of high emissivity material on the outer surface of the side facing the infrared measuring device;

The water inlet tank 3 is provided with a first electric heater 31, a first water supply pump 32, and a first temperature sensor 33 electrically connected to the first electric heater 31 and the first water supply pump 32, respectively, When the first temperature sensor 33 detects that the water temperature of the water in the water inlet tank 3 is heated to the first temperature by the first electric heater 31, the first water supply pump 32 is started to send the water to each of the The flat water tank 1 supplies water, wherein each flat water tank 1 is communicated with the water supply pipe 4 of the first water supply pump 32 through a water inlet provided at the bottom, and each flat water tank 1 is connected with the water supply pipe 4 provided at the top. The water outlet is communicated with the water inlet pipe 5 of the water return tank 6;

The return tank 6 is provided with a second electric heater 61, a second water supply pump 62, and a second temperature sensor 63 electrically connected to the second electric heater 61 and the second water supply pump 62, respectively. When the second temperature sensor 63 detects that the water temperature of the water in the return tank 6 is heated to the first temperature by the second electric heater 61, the second water supply pump 62 is activated to supply water to the water inlet. The tank 3 supplies water, wherein the temperature of the water flowing into the return tank 6 from each flat water tank 1 is a second temperature, and the second temperature is lower than the first temperature.

It can be seen from the above technical solutions that the water in the water inlet tank 3 is heated by the first electric heater 31 in the water inlet tank 3 , and when heated to the first temperature, the water in the water inlet tank 3 is heated by the first water supply pump 32 . Water is supplied to a plurality of flat water tanks 1, and at the same time, a soaking plate 2 with a high emissivity material is attached to the outer surface of each flat water tank 1 facing the infrared measuring device, so that the above-mentioned surface source for infrared measurement is made. The calibration device has a high thermal conductivity (2 orders of magnitude higher than that of the radiation layer of the traditional calibration device, such as the heat conduction system of the aluminum radiation layer), and has a larger surface source calibration size. The side area of a single deformed water tank facing the infrared measuring device side can adjust the calibration size of the surface source. In addition, by using water with a larger specific heat capacity for heat transfer, the radiation temperature of the surface source calibration device can be better controlled, and the surface source calibration device can be well controlled. The fluctuation of the radiation temperature of the target surface of the surface source calibration device caused by the unstable surrounding environment is suppressed. In addition, by heating the water flowing out of the plurality of deformed water tanks 1 by the return water tank 6, the initial temperature of the water flowing into the water inlet tank 3 can be made close to the water temperature for supplying water to the plurality of flat water tanks 1, and further The supply of hot water to the plurality of flat water tanks 1 is ensured, thereby maintaining the radiation temperature of the entire device.

In order to better maintain the water temperature in each flat water tank 1, in some embodiments of the present invention, each flat water tank 1 is affixed on the side of each flat water tank 1 on which the soaking plate 2 is not affixed. There is a first thermal insulation layer 7 .

In order to better fix the plurality of flat water tanks 1, in some embodiments of the present invention, the surface source calibration device for infrared measurement further includes: a casing 8, which is used for The plurality of flat water tanks 1 , the soaking plate 2 and the first thermal insulation layer 7 are fixed and packaged, thereby ensuring the overall stability and firmness of the device.

In order to enable each deformed water tank to be filled with water supplied by the first water supply pump 32, in some embodiments of the present invention, the water outlet pipes 9 connected to the water outlet of each flat water tank 1 are located in the A circuit is formed at the same preset height, wherein the preset height is not lower than the height of the water outlet of the flat water tank 1 with the water outlet of the highest height among the plurality of flat water tanks 1 .

Further, the water outlet pipe 9 connected to the water outlet of each flat water tank 1 is connected with the water inlet pipe 5 of the return water tank 6, so that the water of each flat water tank 1 finally passes through the return water tank 6. The water inlet pipe 5 of the water tank 6 flows into the return water tank 6 .

At the same time, in order to ensure that the temperature of the water flowing out of the water outlet of each flat water tank 1 does not decrease too much, in some embodiments of the present invention, the outlet connected to the water outlet of each flat water tank 1 The water pipes 9 are all wrapped with a second thermal insulation layer.

In order to better control the temperature of the water in the water inlet tank 3 and the water return tank 6, in some embodiments of the present invention, the surface source calibration device for infrared measurement further includes: a controller, which with the first electric heater 31 , the first water supply pump 32 , the first temperature sensor 33 , the second electric heater 61 , the second water supply pump 62 and the second temperature sensor 63 Electrical connection is used to control the first electric heater 31 to heat the water in the water inlet tank 3, and when the first temperature sensor 33 detects that the temperature of the water in the water inlet tank 3 reaches At the first temperature, the first water supply pump 32 is controlled to start water supply, and the controller is also used to control the second electric heater 61 to heat the water in the return tank 6, and at the second When the temperature sensor 63 detects that the temperature of the water in the return water tank 6 reaches the first temperature, it controls the second water supply pump 62 to start water supply.

In order to save the power consumption of the above-mentioned surface source calibration device for infrared measurement, in some embodiments of the present invention, the controller is further configured to, based on the second temperature, control the second electric heater The heating output power of 61, that is, if the second temperature is not much different from the first temperature, such as the first temperature is 70 degrees, and the second temperature is 65 degrees, then the second temperature can be The output power of the electric heater 61 is adjusted down, and if the first temperature is 70 and the second temperature is 40, the difference is 30 degrees, and the temperature difference is relatively large. At this time, the output power of the second electric heater 61 can be adjusted up. , to warm up the water in the return tank 6 as soon as possible.

Similarly, in order to ensure that the temperature of the water does not drop significantly during transmission in the pipeline, in some embodiments of the present invention, the water supply pipe 4 and the water inlet pipe 5 are both wrapped with a third thermal insulation layer .

The embodiment of the present invention also provides an infrared measurement device, including: the above-mentioned surface source calibration device for infrared measurement, which has all the beneficial effects of the surface source calibration device. The water in the water inlet tank 3 is heated by the first electric heater 31 in the water inlet tank 3, and when heated to the first temperature, the water is supplied to the plurality of flat water tanks 1 by the first water supply pump 32, and simultaneously , by affixing a soaking plate 2 with a high emissivity material on the outer surface of each flat water tank 1 facing the infrared measuring device side, so that the above-mentioned surface source calibration device for infrared measurement has a higher thermal conductivity (than The radiation layer of the traditional calibration device, such as the heat conduction system of the aluminum radiation layer, is 2 orders of magnitude higher, and has a larger surface source calibration size. In addition, by using water with a larger specific heat capacity for heat transfer, the radiation temperature of the surface source calibration device can be better controlled, and the surface source caused by the unstable surrounding environment can be suppressed. The fluctuation of the target surface radiation temperature of the calibration device.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present invention within the spirit and protection scope of the present invention, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present invention.

Claims (10)

1. a surface source calibration device for infrared measurement, is characterized in that, comprises: A plurality of flat water tanks, each flat water tank is provided with a soaking plate of high emissivity material on the outer surface of the side facing the infrared measuring device; The water inlet tank is provided with a first electric heater, a first water supply pump, and a first temperature sensor electrically connected to the first electric heater and the first water supply pump, respectively. At the first temperature When the sensor detects that the water temperature of the water in the water inlet tank is heated to a first temperature by the first electric heater, the first water supply pump is started to supply water to each of the flat water tanks, wherein each of the The flat water tanks are all communicated with the water supply pipe of the first water supply pump through the water inlet provided at the bottom, and each of the flat water tanks is communicated with the water inlet pipe of the return tank through the water outlet provided at the top; The return water tank is provided with a second electric heater, a second water supply pump, and a second temperature sensor electrically connected to the second electric heater and the second water supply pump, respectively. When it is detected that the water temperature of the water in the return tank is heated to the first temperature by the second electric heater, the second water supply pump is started to supply water to the water inlet tank, wherein each The temperature of the water flowing into the return tank from the flat water tank is a second temperature, and the second temperature is lower than the first temperature. 2. The surface source calibration device for infrared measurement according to claim 1, characterized in that, A first thermal insulation layer is attached to the side of each of the flat water tanks on which the soaking plate is not attached. 3. The surface source calibration device for infrared measurement according to claim 2, characterized in that, further comprising: The casing is used for fixing and encapsulating the plurality of flat water tanks, the soaking plate and the first thermal insulation layer. 4. The surface source calibration device for infrared measurement according to claim 1, characterized in that, The water outlet pipes connected to the water outlet of each flat-shaped water tank are formed with a circuit at the same preset height, wherein the preset height is not lower than the flat-shaped water outlet with the highest height among the plurality of flat-shaped water tanks. The height of the water outlet of the tank. 5 . The surface source calibration device for infrared measurement according to claim 1 , wherein the water outlet pipe connected to the water outlet of each flat water tank is in communication with the water inlet pipe of the return water tank. 6 . 6 . The surface source calibration device for infrared measurement according to claim 5 , wherein the water outlet pipe connected to the water outlet of each flat water tank is wrapped with a second thermal insulation layer. 7 . 7. The surface source calibration device for infrared measurement according to claim 1, further comprising: a controller electrically connected to the first electric heater, the first water supply pump, the first temperature sensor, the second electric heater, the second water supply pump and the second temperature sensor , to control the first electric heater to heat the water in the water inlet tank, and when the first temperature sensor detects that the temperature of the water in the water inlet tank reaches the first temperature, control the The first water supply pump starts water supply, and the controller is also used to control the second electric heater to heat the water in the return water tank, and the second temperature sensor detects that the water in the return tank is When the temperature of the water reaches the first temperature, the second water supply pump is controlled to start water supply. 8 . The surface source calibration device for infrared measurement according to claim 7 , wherein the controller is further configured to, based on the second temperature, control the heating output power of the second electric heater. 9 . . 9 . The surface source calibration device for infrared measurement according to claim 1 , wherein the water supply pipe and the water inlet pipe are both wrapped with a third thermal insulation layer. 10 . 10. An infrared measuring device, comprising: The surface source calibration device for infrared measurement according to any one of claims 1-9.

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