Infrared thermometer calibration device and method

Abstract

The present invention relates to the field of infrared temperature measurement technology, and specifically to an infrared thermometer calibration device, comprising a workbench, wherein at least a first mounting position and a second mounting position are provided on the workbench, a cooling black body is fixedly installed on the first mounting position, and a heating black body is fixedly installed on the second mounting position; a rotary arm is rotatably connected to the workbench through a lifting rod, and the distance between the rotary arm and each first mounting position and each second mounting position is equal; a clamping mechanism is provided at one end of the rotary arm away from the lifting rod, and the clamping mechanism is used to fix the infrared thermometer to be calibrated; a controller and a rotating mechanism for driving the lifting rod to rotate are also provided on the workbench, and the clamping mechanism and the rotating mechanism are both electrically connected to the controller. The infrared thermometer calibration device has a high degree of automation, so as to avoid uncertain factors introduced by manual operation and improve the calibration efficiency of the infrared thermometer.

Description

Technical Field

[0001] The present invention relates to the field of infrared temperature measurement technology, and in particular to an infrared thermometer calibration device and method. Background Art

[0002] With the rapid development of infrared temperature measurement technology, infrared thermometers have been widely used in different fields such as medical treatment, metallurgy, and electricity. With the increase in market demand, the output of infrared thermometers is also increasing year by year, which is bound to put forward higher requirements on the factory testing and calibration efficiency. At the same time, in order to ensure the performance of infrared thermometers, the reliability of testing and calibration equipment is also particularly important.

[0003] Traditional testing and calibration devices are mainly operated manually throughout the process, with low testing efficiency, high labor intensity, and easy misalignment with the center position of the blackbody radiation surface, resulting in inaccurate temperature measurement. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide an infrared thermometer calibration device, which has a high degree of automation to avoid uncertainties introduced by manual operation and improve the calibration efficiency of the infrared thermometer. In addition, an infrared thermometer calibration method is also provided to realize automatic calibration of the infrared thermometer.

[0005] In order to achieve the above technical effects, the present invention adopts the following technical solutions:

[0006] A device for calibrating an infrared thermometer comprises a workbench, wherein at least a first mounting position and a second mounting position are arranged on the workbench, a cooling black body is fixedly mounted on the first mounting position, and a heating black body is fixedly mounted on the second mounting position; a rotary arm is rotatably connected to the workbench through a lifting rod, and the distance between the rotary arm and each first mounting position and each second mounting position is equal; a clamping mechanism is arranged at one end of the rotary arm away from the lifting rod, and the clamping mechanism is used to fix the infrared thermometer to be calibrated; a controller and a rotating mechanism for driving the lifting rod to rotate are also arranged on the workbench, and the clamping mechanism and the rotating mechanism are both electrically connected to the controller.

[0007] Furthermore, the rotating mechanism includes a first motor, which is fixedly connected to the workbench, and a first synchronous wheel is provided at the output end of the first motor, and the first synchronous wheel is connected to a second synchronous wheel through a synchronous belt transmission, and a mounting seat is fixedly installed on the top of the second synchronous wheel, and a shaft sleeve is fixedly installed above the mounting seat, and the bottom end of the lifting rod is sleeved inside the shaft sleeve and can slide up and down along the shaft sleeve.

[0008] Furthermore, the radiation surface of the cooling type black body is arranged upward, and the radiation surface of the heating type black body is arranged downward.

[0009] Furthermore, a cooling groove is provided on the radiation surface of the cooling type black body, and a hollow air duct is installed on the cooling type black body. A dry air outlet is provided at the tail end of the air duct and the dry air outlet is arranged at the bottom of the cooling groove.

[0010] Furthermore, the refrigeration type black body is also provided with a heat conduction cavity outside the refrigeration tank, and the heat conduction cavity is filled with liquid heat conduction medium. The head end of the air guide pipe extends to the outside of the refrigeration type black body and is connected to an air inlet pipe. The middle section of the air guide pipe is spirally coiled in the heat conduction cavity, and the tail end of the air guide pipe passes through the refrigeration type black body from the bottom of the refrigeration tank and connects the air inlet pipe and the refrigeration tank.

[0011] Furthermore, a heating groove is provided on the radiation surface of the heating black body, a plurality of groups of electric heating wires are arranged on the outer wall of the heating groove, and the outer side of the heating groove is also covered with a heat insulation layer.

[0012] Furthermore, it also includes a flipping mechanism, which is arranged on the rotary arm and is used to drive the clamping mechanism to flip up and down so that the infrared thermometer faces the radiation surface, and the flipping mechanism is electrically connected to the controller.

[0013] Furthermore, the flipping mechanism includes a mounting plate, one end of the mounting plate is fixedly connected to the clamping mechanism, the other end of the mounting plate is fixedly mounted with a flange shaft via a flange plate, the end of the flange shaft away from the flange plate is rotatably connected to the swing arm via a bearing, a first gear is also sleeved on the outside of the flange shaft, a second motor is fixedly mounted on the swing arm, a second gear is provided at the output end of the second motor, and the second gear is meshed with the first gear for transmission.

[0014] Furthermore, it also includes a lifting mechanism, which is used to drive the lifting rod to move up and down relative to the workbench to adjust the distance between the infrared thermometer and the radiation surface, and the lifting mechanism is electrically connected to the controller.

[0015] Furthermore, the lifting mechanism includes a third motor fixedly mounted on the mounting base, a third gear is provided at the output end of the third motor, a lifting rack is fixedly mounted at the lower part of the lifting rod, and the lifting rack is meshed with the third gear, and the third motor is electrically connected to the controller.

[0016] Furthermore, the first installation position and the second installation position are both provided with a travel switch on a side close to the lifting rod, and the travel switch is electrically connected to the controller.

[0017] Furthermore, the controller is communicatively connected to a host computer.

[0018] A method for calibrating an infrared thermometer comprises calibrating the infrared thermometer calibration device using the infrared thermometer calibration device.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the first aspect, the present invention arranges a rotating mechanism and a lifting mechanism on the frame to drive the rotation of the cantilever, and drives the clamping mechanism to adjust the position through the telescopic mechanism, and the flipping mechanism is used to flip the clamping mechanism so that the infrared thermometer to be calibrated is flipped. In addition, the device is automatically controlled and operated by the host computer, and the steps including temperature acquisition, curve fitting, temperature calibration, etc. are all automatically controlled by the test software, which further improves the test efficiency and ensures accuracy. It is particularly suitable for batch infrared thermometer detection; in addition, the feedback of the travel switch makes its positioning fast and accurate, avoiding the uncertainty factors introduced by manual operation, and improving the test efficiency and reliability.

[0021] Secondly, the present invention provides a dry air outlet at the bottom of the refrigerated black body and cools the dry gas during transportation so that the temperature of the dry gas is close to the temperature of the radiating surface of the refrigerated black body, thereby improving the temperature uniformity of the radiating surface of the refrigerated black body and effectively preventing frost and condensation on the radiating surface.

[0022] Thirdly, the present invention effectively improves uniformity and stability by designing the heated black body radiation surface downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the overall structure of an infrared thermometer calibration device provided by one embodiment of the present invention;

[0024] Figure 2 A schematic cross-sectional structure diagram of a refrigerated black body in an infrared thermometer calibration device provided by an embodiment of the present invention;

[0025] Figure 3 A schematic cross-sectional structure diagram of a heated black body in an infrared thermometer calibration device provided by an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the structure of a mounting base and a cantilever in an infrared thermometer calibration device provided by an embodiment of the present invention;

[0027] Figure 5 An embodiment of the present invention provides Figure 4 A schematic diagram of the partially enlarged structure of part A;

[0028] The reference numerals are: 10, workbench, 11, travel switch, 20, swing arm, 21, fixed arm, 22, telescopic arm, 23, rigid housing, 24, screw shaft, 241, fourth motor, 242, slider, 30, clamping mechanism, 40, refrigeration type black body, 40a, first installation position, 41, refrigeration tank, 42, air guide tube, 421,

[0029] Dry air outlet, 43, air inlet pipe, 44, liquid heat conducting medium, 50, heating black body, 50a, second installation position, 51, heating tank, 52, temperature sensor, 53, heat insulation layer, 54, heating wire, 60, controller, 61, travel switch, 71, first motor, 72, first synchronous wheel, 73, second synchronous wheel, 74,

[0030] Synchronous belt, 75, mounting seat, 751, bushing, 752, mounting hole, 81, third motor, 82, third gear, 83, lifting rod, 831, lifting rack, 90, mounting plate, 91, flange, 92, flange shaft, 921, first gear, 93, second motor, 931, second gear. DETAILED DESCRIPTION

[0031] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0032] like Figure 1-Figure 5As shown, an infrared thermometer calibration device provided in this embodiment includes a workbench 10, on which a swivel arm 20 is provided, and the swivel arm 20 is rotatably connected to the workbench 10 through a lifting rod 83. The workbench 10 is also provided with a plurality of mounting positions for mounting a standard black body. Specifically, the mounting positions include three first mounting positions 40a and two second mounting positions 50a, each of which is fixedly mounted with a cooling type black body 40, and each of which is fixedly mounted with a heating type black body 50, and the temperatures of the cooling type black body 40 and the heating type black body 50 are arranged in an ascending order. The first mounting position 40a and the second mounting position 50a are both distributed in an arc shape with the lifting rod 83 as the center, so that the spacing from each of the first mounting position 40a to the lifting rod 83 and the spacing from the second mounting position 50a to the lifting rod 83 are equal, and the spacing is equal to the length of the swivel arm 20. The swing arm 20 is provided with a clamping mechanism 30 at one end away from the lifting rod 83, and the clamping mechanism 30 is used to fix the infrared thermometer to be calibrated. Specifically, the clamping mechanism 30 includes a variety of replaceable types, which are suitable for the installation and fixation of different types of infrared thermometers. For the convenience of use and clamping, the present embodiment selects a three-jaw chuck in the prior art as the clamping mechanism 30 to clamp the infrared thermometer. At the same time, the workbench 10 is also provided with a controller 60 and a rotating mechanism for driving the lifting rod 83 to rotate. The clamping mechanism 30 and the rotating mechanism are both electrically connected to the controller 60. In the specific implementation, the controller 60 can control the lifting rod 83 to rotate to drive the lifting rod 83 to rotate, so as to realize the movement of the swing arm 20, so as to drive the infrared thermometer to move to different installation positions, so that the infrared thermometer is sequentially opposite to the standard black body on the installation position to facilitate the calibration of the infrared thermometer.

[0033] In this embodiment, in order to drive the lifting rod 83 to rotate, the rotating mechanism includes a first motor 71, the first motor 71 is fixedly connected to the workbench 10, and the output end of the first motor 71 is provided with a first synchronous wheel 72, the first synchronous wheel 72 is connected to the second synchronous wheel 73 through a synchronous belt 74, the top of the second synchronous wheel 73 is fixedly connected to a mounting seat 75 through a rotating shaft, and the bottom of the rotating shaft is rotatably connected to the workbench 10 through a bearing seat. A sleeve 751 is fixedly installed above the mounting seat 75, and the mounting seat 75 is also provided with a mounting hole 752 just below the sleeve 751. The bottom end of the lifting rod 83 is sleeved inside the sleeve 751 and the mounting hole 752 and can slide up and down along the sleeve 751 and the mounting hole 752. In specific implementation, the controller 60 controls the first motor 71 to start, and the first motor 71 is started to drive the first synchronous wheel 72 to rotate, and the first synchronous wheel 72 drives the second synchronous wheel 73 to drive the mounting seat 75 to rotate.

[0034] In this embodiment, the first installation position 40a and the second installation position 50a are both provided with a travel switch 6111 on one side close to the lifting rod 83, and the travel switch 6111 is electrically connected to the controller 60. Specifically, the travel switch 6111 is a non-contact infrared switch. In specific implementation, the travel switch 6111 detects and sends a position signal of the infrared thermometer to the controller 60, and the controller 60 controls the movement of the rotating mechanism so that the rotary arm 20 drives the clamping mechanism 30 to make the infrared thermometer face the radiation surface.

[0035] In this embodiment, the controller 60 is communicatively connected to a host computer, and control software is installed in the host computer. In specific implementation, the host computer sends instructions to the controller 60, and the controller 60 controls the rotating mechanism to drive the rotary arm 20 to rotate, so as to send the infrared thermometer to the radiation surface position of the standard black body set at different temperatures in turn, and the infrared thermometer automatically collects the temperature, generates a temperature deviation curve, and then performs temperature calibration to realize automatic calibration of the infrared thermometer.

[0036] In this embodiment, the radiation surface of the cooling black body 40 is arranged upward, and the radiation surface of the heating black body 50 is arranged downward.

[0037] In this embodiment, in order to solve the problem of frost and condensation on the surface of the refrigeration type black body 40 in the prior art, a refrigeration groove 41 is provided on the radiation surface of the refrigeration type black body 40, and a hollow air guide pipe 42 is also installed on the refrigeration type black body 40, and a dry air outlet 421 is provided at the tail end of the air guide pipe 42, and the dry air outlet 421 is provided at the bottom of the refrigeration groove 41 to reduce the relative humidity inside the cavity. Specifically, the refrigeration type black body 40 is also provided with a heat conduction cavity outside the refrigeration groove 41, and the heat conduction cavity is filled with a liquid heat conduction medium 44. In a specific implementation, the liquid heat conduction medium 44 exchanges heat with the refrigeration groove 41 to reduce the temperature of the refrigeration groove 41 and make the temperature of the refrigeration groove 41 constant at a preset value. The head end of the air guide pipe 42 extends to the outside of the refrigeration type black body 40 and is connected to an air inlet pipe 43, and an electromagnetic valve is provided on the air inlet pipe 43, and the electromagnetic valve is electrically connected to the controller 60. The middle section of the air guide pipe 42 is spirally coiled in the heat conduction cavity, and the tail end of the air guide pipe 42 passes through the refrigeration type black body 40 from the bottom of the refrigeration groove 41 and connects the air inlet pipe 43 and the refrigeration groove 41. In the specific implementation, the controller 60 controls the solenoid valve to open so as to facilitate the introduction of dry air into the air guide pipe 42. In the process of being transported from the head end to the tail end of the air guide pipe 42, the dry air exchanges heat with the liquid heat conduction medium 44, so that the dry air is transformed into dry cold air and its temperature gradually approaches the temperature of the heat conduction medium. Finally, it enters the bottom of the refrigeration groove 41 through the tail end of the air guide pipe 42. In other words, due to its large density, the low-temperature dry gas will gradually fill the cavity from the bottom of the black body cavity upward, effectively reducing the relative humidity in the refrigeration groove 41, solving the problem of low-temperature frost and condensation on the radiation surface, and also effectively suppressing the unevenness caused by the heat exchange between the refrigeration groove 41 and the external normal temperature air and the problem of affecting the emissivity, so as to reduce the temperature fluctuation of the refrigeration type black body 40 and make the calibration result more accurate.

[0038] In this embodiment, a heating groove 51 is provided on the radiation surface of the heating type black body 50, and the outer side of the heating groove 51 is also covered with a heat insulation layer 53, and a plurality of groups of heating wires 54 are also provided between the heating groove 51 and the heat insulation layer 53, and the heating wires 54 are electrically connected to the controller 60. A mounting groove is also provided in the middle of the heating groove 51, and a temperature sensor 52 is provided in the mounting groove, and the temperature sensor 52 is electrically connected to the controller 60. In a specific implementation, the temperature of the heating groove 51 is detected by the temperature sensor 52 and the detection result is fed back to the controller 60, and the controller 60 controls the heating wire 54 to heat the heating groove 51, so that the temperature in the heating groove 51 is constant at a preset value. At the same time, when the radiation surface of the heating type black body 50 is set downward, the characteristics of the violent movement and low density of the hot air molecules are utilized, so that the hot air in the heating groove 51 that is heated due to the heat exchange with the cavity wall is retained inside the heating groove 51, which effectively improves the non-uniformity and instability caused by the heat exchange between the cavity and the flowing air during the measurement.

[0039] In this embodiment, the inner walls of the cooling groove 41 and the heating groove 51 are coated with a high emissivity coating to improve the uniformity of temperature and ensure the accuracy of the calibration result.

[0040] In this embodiment, a flip mechanism is also provided on the cantilever, and the flip mechanism is used to drive the clamping mechanism 30 to flip up and down so that the infrared thermometer faces the radiation surface, and the flip mechanism is electrically connected to the controller 60. Specifically, the flip mechanism includes a mounting plate 90, one end of the mounting plate 90 is fixedly connected to the clamping mechanism 30, and the other end of the mounting plate 90 is fixedly installed with a flange shaft 92 through a flange 91, and the end of the flange shaft 92 away from the flange 91 is rotatably connected to the swing arm 20 through a bearing. The flip mechanism also includes a power assembly for driving the flange shaft 92 to rotate. Specifically, the power assembly includes a first gear 921 sleeved on the outside of the flange shaft 92, the first gear 921 is fixedly connected to the flange shaft 92, a second motor 93 is fixedly installed on the swing arm 20, a second gear 931 is provided at the output end of the second motor 93, and the second gear 931 is meshed with the first gear 921 for transmission, and the second motor 93 is electrically connected to the controller 60. In a specific implementation, the controller 60 can be used to control the second motor 93 to start, and the second motor 93 can drive the second gear 931 to rotate and drive the first gear 921 and the flange shaft 92 to rotate synchronously, so as to realize the flipping of the mounting plate 90 and the clamping mechanism 30, and finally drive the infrared thermometer and the clamping mechanism 30 to flip synchronously, so that the infrared thermometer is directly opposite to the radiation surface of the cooling black body 40 and the heating black body 50, so as to realize the calibration of the infrared thermometer.

[0041] In this embodiment, a lifting mechanism is also provided on the mounting seat 75, and the lifting mechanism is used to drive the lifting rod 83 to move up and down within a certain stroke relative to the workbench 10 to adjust the distance between the infrared thermometer to be calibrated and the radiation surface, so that the infrared thermometer calibration device can be applicable to the calibration of infrared thermometers with different focal lengths. The lifting mechanism is electrically connected to the controller 60 to achieve automatic control. Specifically, the lifting mechanism includes a third motor 81 fixedly mounted on the mounting seat 75, and a third gear 82 is provided at the output end of the third motor 81. The lifting rod 83 is fixedly mounted with a lifting rack 831 between the mounting hole 752 and the shaft sleeve 751, and the lifting rack 831 is meshed with the third gear 82, and the third motor 81 is electrically connected to the controller 60. In a specific implementation, the controller 60 controls the rotation of the third gear 82 and the third gear 82 is engaged with the lifting rack 831 to realize the up and down movement of the lifting rod 83, and the lifting rod 83 drives the rotary arm 20 to move up and down to adjust the distance between the infrared thermometer and the radiation surface to adapt to the calibration of infrared thermometers with different focal lengths.

[0042] In this embodiment, the swing arm 20 is a telescopic swing arm 20 and a telescopic mechanism is provided on the swing arm 20 for fine-tuning the position of the clamping mechanism 30, so that the infrared thermometer fixed on the clamping mechanism 30 can be directly opposite to the cooling groove 41 or the heating groove 51, thereby improving the calibration accuracy. Specifically, the cantilever includes a fixed arm 21 fixedly connected to the lifting rod 83 and a telescopic arm 22 slidably connected to the fixed arm 21, a rigid shell 23 is provided at the connection between the fixed arm 21 and the telescopic arm 22, and the rigid shell 23 is fixedly connected to the fixed arm 21, and the telescopic mechanism includes a screw shaft 24 arranged inside the rigid shell 23, a slider 242 is sleeved on the screw shaft 24, and the slider 242 is fixedly connected to the end of the telescopic arm 22, and one end of the screw shaft 24 is also provided with a fourth motor 241 for driving the screw shaft 24 to rotate, and the fourth motor 241 is electrically connected to the controller 60. In a specific implementation, the controller 60 can control the fourth motor 241 to start and drive the screw shaft 24 to rotate, and the rotation of the screw shaft 24 can drive the telescopic arm 22 to slide back and forth along the fixed arm 21 to achieve fine adjustment of the position of the clamping mechanism 30, so as to facilitate the infrared thermometer to be calibrated to face the standard black body.

[0043] In specific implementation, the specific steps of calibrating the infrared thermometer calibration device using the above infrared thermometer calibration device include:

[0044] S1: Setting the working temperature of each standard black body through the host computer so that the temperature of each standard black body is constant at a preset value, and fixing the infrared thermometer to be calibrated on the clamping mechanism 30;

[0045] S2: After the test starts, the travel switch 6111 locates the position of the swing arm 20, and the controller 60 controls the telescopic mechanism and the lifting mechanism to adjust the position of the clamping mechanism 30, and the controller 60 controls the rotating mechanism to drive the lifting rod 83 to drive the swing arm 20 to rotate, so that the infrared thermometer passes through each first installation position 40a and the second installation position 50a in sequence. When the swing arm 20 passes between the first installation position 40a and the second installation position 50a, the clamping mechanism 30 is controlled to flip through the flipping mechanism, so that the infrared thermometer is facing the radiation surface. In this process, the infrared thermometer to be calibrated automatically detects the temperature of each standard black body and feeds back to the controller 60;

[0046] S3: The controller 60 feeds back the detection data of the infrared thermometer to be calibrated to the host computer, and the temperature deviation curve of the control software in the host computer is used to perform temperature calibration.

[0047] The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit it. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention. For example, in a specific implementation, the number of the clamping mechanism, rotating mechanism, lifting mechanism, flipping mechanism, telescopic mechanism and standard black body in the present invention can be increased or decreased as needed to meet different testing requirements. At the same time, the technology, shape, and structural parts not described in detail in the present invention are all known technologies.

Claims

1. An infrared thermometer calibration device, characterized in that: The workbench (10) comprises a workbench (10), wherein at least one first mounting position (40a) and one second mounting position (50a) are provided on the workbench (10), a cooling black body (40) is fixedly installed on the first mounting position (40a), and a heating black body (50) is fixedly installed on the second mounting position (50a); the workbench (10) is also rotatably connected to a rotary arm (20) via a lifting rod (83), and the distance between each first mounting position (40a) and the lifting rod (83) and the distance between each second mounting position (50a) and the lifting rod (83) are equal; a clamping mechanism (30) is provided at one end of the rotary arm (20) away from the lifting rod (83), and the clamping mechanism (30) is used to fix an infrared thermometer to be calibrated; the workbench (10) is also provided with a controller (60) and a rotating mechanism used to drive the lifting rod (83) to rotate, and the clamping mechanism (30) and the rotating mechanism are both electrically connected to the controller (60); The rotating mechanism comprises a first motor (71), the first motor (71) is fixedly connected to the workbench (10), a first synchronous wheel (72) is arranged at the output end of the first motor (71), the first synchronous wheel (72) is connected to the second synchronous wheel (73) through a synchronous belt (74), a mounting seat (75) is fixedly installed on the top of the second synchronous wheel (73), and a shaft sleeve (751) is fixedly installed above the mounting seat (75), and the bottom end of the lifting rod (83) is sleeved inside the shaft sleeve (751) and can slide up and down along the shaft sleeve (751); The radiation surface of the cooling black body (40) is arranged upward, and the radiation surface of the heating black body (50) is arranged downward; A cooling groove (41) is provided on the radiation surface of the cooling black body (40), a hollow air guide pipe (42) is also installed on the cooling black body (40), a dry air outlet (421) is provided at the tail end of the air guide pipe (42), and the dry air outlet (421) is arranged at the bottom of the cooling groove (41); The refrigeration type black body (40) is further provided with a heat conduction cavity outside the refrigeration groove (41), and the heat conduction cavity is filled with a liquid heat conduction medium (44); the head end of the air guide pipe (42) extends to the outside of the refrigeration type black body (40) and is connected to an air inlet pipe (43); the middle section of the air guide pipe (42) is spirally coiled in the heat conduction cavity; the tail end of the air guide pipe (42) passes through the refrigeration type black body (40) from the bottom of the refrigeration groove (41) and connects the air inlet pipe (43) and the refrigeration groove (41); It also includes a flipping mechanism, which is arranged on the rotary arm (20) and is used to drive the clamping mechanism (30) to flip up and down so that the infrared thermometer faces the radiation surface, and the flipping mechanism is electrically connected to the controller (60).

2. An infrared thermometer calibration device as claimed in claim 1, characterized in that: It also includes a lifting mechanism, which is used to drive the lifting rod (83) to move up and down relative to the workbench (10) to adjust the distance between the infrared thermometer and the radiation surface, and the lifting mechanism is electrically connected to the controller (60).

3. An infrared thermometer calibration device as claimed in claim 1, characterized in that: The first installation position (40a) and the second installation position (50a) are both provided with a travel switch (61) (11) on a side close to the lifting rod (83), and the travel switch (61) (11) is electrically connected to the controller (60).

4. An infrared thermometer calibration device as claimed in claim 1, characterized in that: The controller (60) is communicatively connected to a host computer.

5. A method for calibrating an infrared thermometer, characterized in that: The method comprises calibrating the infrared thermometer calibration device by using the infrared thermometer calibration device described in any one of claims 1 to 4.

Images