Portable high-temperature infrared temperature measurement calibration source

Abstract

The utility model discloses a portable high-temperature infrared temperature measurement calibration source, which comprises a shell, and a lamp bin, an adjustable power supply and a circuit board are arranged in the shell. A temperature measurement probe butt joint assembly, a standard temperature display module, a measurement temperature display module, a voltage and current display module, a standard probe socket, a measurement probe socket, a voltage adjusting knob and a current adjusting knob are arranged on the outer wall of the shell, a black body cavity is formed in the lamp bin, and a halogen tungsten lamp is inserted in the black body cavity; the butt-joint assembly comprises an inner butt-joint cylinder, an outer butt-joint cylinder and an adjusting sleeve, and the adjusting sleeve is detachably connected with the outer butt-joint cylinder; the halogen tungsten lamp, the voltage and current display module, the voltage adjusting knob and the current adjusting knob are electrically connected with the adjustable power supply; the standard temperature display module, the measurement temperature display module, the standard probe socket and the measurement probe socket are electrically connected with the circuit board. According to the utility model, the rapid, stable and accurate temperature control effect can be realized, and the application range is wide.

Description

Technical Field

[0001] This utility model relates to the field of infrared thermometer temperature calibration technology, and in particular to a portable high-temperature infrared temperature calibration source. Background Technology

[0002] With the rapid development of infrared temperature measurement technology, infrared thermometers have been widely used in various fields such as medicine, metallurgy, and power, playing a vital role in product quality control and monitoring, online equipment fault diagnosis and safety protection, and energy conservation. However, the temperature measurement error of infrared thermometers can change over long-term use, thus reducing their measurement accuracy. Therefore, to ensure the performance of infrared thermometers, the reliability and ease of use of the infrared thermometer calibration device are particularly important.

[0003] Blackbody radiation sources, as a standard infrared radiation source, are widely used for calibrating infrared thermometers. Calibration devices incorporate blackbody radiation sources, and calibration is achieved by comparing the temperature measured by the infrared thermometer irradiated with the standard temperature. However, most commonly used high-temperature blackbody radiation sources, both domestically and internationally, are large, heavy, and difficult to move. Furthermore, their heating methods often involve wrapping heating wires or heating films around the outer surface of the blackbody cavity. These blackbody radiation sources have long heating times, slow temperature stabilization times, poor stability, and high energy consumption. Additionally, the temperature field within the cavity is uneven, leading to significant errors during infrared thermometer calibration. Moreover, existing calibration devices have fixed-diameter temperature probe interfaces, limiting their applicability and constraining their calibration capabilities. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the existing technology, it is desirable to provide a portable high-temperature infrared temperature measurement and calibration source that can achieve fast, stable and accurate temperature control, and can also fix the temperature measuring probe of infrared thermometers of different sizes by changing the adjustment sleeve with different inner diameters, thus having a wide range of applications.

[0005] This utility model provides a portable high-temperature infrared temperature measurement and calibration source, comprising a housing, within which are a lamp compartment, an adjustable power supply, and a circuit board. The outer wall of the housing is provided with a temperature probe docking assembly, a standard temperature display module, a measured temperature display module, a voltage and current display module, a standard probe socket, a measured probe socket, a voltage adjustment knob, and a current adjustment knob.

[0006] The lamp housing is cylindrical, and a blackbody cavity is formed inside the lamp housing. A halogen tungsten lamp is inserted inside the blackbody cavity.

[0007] The docking assembly includes an inner docking cylinder, an outer docking cylinder, and an adjusting sleeve. The inner docking cylinder is fixedly connected to and communicates with the outer docking cylinder. The end of the inner docking cylinder away from the outer docking cylinder extends into the lamp housing and aligns with the opening of the blackbody cavity. The adjusting sleeve is detachably connected to the end of the outer docking cylinder away from the inner docking cylinder. The adjusting sleeve is used for inserting a standard infrared temperature measuring probe or an infrared temperature measuring probe to be calibrated into the dock.

[0008] The halogen tungsten lamp, the voltage and current display module, the voltage adjustment knob, and the current adjustment knob are all electrically connected to the adjustable power supply. The voltage adjustment knob and the current adjustment knob are used to adjust the voltage and current values ​​of the halogen tungsten lamp.

[0009] The standard temperature display module, the measured temperature display module, the standard probe socket, and the measured probe socket are all electrically connected to the circuit board. The standard probe socket is used to connect to a standard infrared temperature measuring probe, and the measured probe socket is used to connect to an infrared temperature measuring probe to be calibrated.

[0010] The standard temperature display module is used to display the temperature value measured by the standard infrared temperature probe, and the measurement temperature display module is used to display the temperature value measured by the infrared temperature probe to be calibrated.

[0011] Preferably, the outer docking cylinder includes a first docking cylinder and a second docking cylinder. The first docking cylinder is fixedly connected to the inner docking cylinder. The second docking cylinder is sleeved inside the first docking cylinder and slidably connected to the first docking cylinder. The adjusting sleeve is sleeved inside the second docking cylinder and threadedly connected to the second docking cylinder. The inner wall of the adjusting sleeve is provided with an internal thread.

[0012] Preferably, the first docking cylinder has multiple threaded through holes along its axial direction, and the second docking cylinder has multiple threaded grooves corresponding to the threaded through holes along its axial direction. A fastening bolt is threaded into the threaded through hole, and the fastening bolt threaded through the threaded through hole and threadedly connected to the threaded groove.

[0013] Preferably, the standard probe socket is a 7-pin aviation socket, and the measuring probe socket is a 7-pin aviation socket.

[0014] Preferably, the housing is further provided with a power plug, a main power switch and a halogen lamp power switch, the halogen lamp power switch being electrically connected to the adjustable power supply.

[0015] Preferably, the housing is further provided with a lamp housing fixing frame, the lamp housing fixing frame is provided with an oblong hole, a bolt is inserted into the oblong hole, and the lamp housing and the lamp housing fixing frame are fixedly connected by the bolt.

[0016] Preferably, the lamp housing is made of aluminum alloy and the entire lamp housing is blackened.

[0017] Preferably, the outer wall of the housing is provided with a hook for placing a standard infrared temperature probe.

[0018] Preferably, the outer wall of the housing is symmetrically provided with handling handles.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] (1) This application sets up a lamp chamber inside the housing, which contains a halogen tungsten lamp and a blackbody cavity. The halogen tungsten lamp is powered on to make it emit light. Compared with the heating wire, the halogen tungsten lamp has a smaller heating volume, faster heating speed, and better stability. Moreover, the lamp chamber is cylindrical, and its internal energy field is more uniform, reducing the error when calibrating the infrared thermometer. This application can also adjust the voltage and current of the halogen tungsten lamp through the voltage adjustment knob and the current adjustment knob, thereby changing the radiation energy of the halogen tungsten lamp. The voltage and current of the halogen tungsten lamp can be displayed intuitively through the voltage and current meters, making the temperature control more flexible and accurate.

[0021] (2) The docking assembly of this application includes an inner docking cylinder, an outer docking cylinder and an adjustment sleeve. By inserting a standard infrared temperature measuring probe and an infrared temperature measuring probe to be calibrated into the adjustment sleeve, they are aligned with the blackbody cavity for measurement. The infrared thermometer is calibrated by comparing the standard temperature and the measured temperature. The adjustment sleeve is detachably connected to the outer docking cylinder. By replacing the adjustment sleeve with different inner diameters, the infrared temperature measuring probes of different sizes can be fixed, thus expanding its application range.

[0022] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a top perspective view of the present invention;

[0025] Figure 2 This is a front view of the present invention;

[0026] Figure 3 This is the right view of the present invention;

[0027] Figure 4 This is the left view of the present invention;

[0028] Figure 5 This is a structural diagram of the docking components;

[0029] The following components are labeled in the diagram: 1. Housing; 2. Lamp compartment; 3. Adjustable power supply; 4. Circuit board; 5. Temperature probe docking assembly; 6. Standard temperature display module; 7. Measured temperature display module; 8. Voltage and current display module; 9. Standard probe socket; 10. Measured probe socket; 11. Voltage adjustment knob; 12. Current adjustment knob; 13. Blackbody cavity; 14. Halogen lamp; 15. Toggle switch; 16. Power plug; 17. Main power switch; 18. Halogen lamp power switch; 19. Lamp compartment mounting bracket; 20. Cooling fan; 21. Hook; 22. Handle; 23. Standard infrared temperature probe.

[0030] 501. Internal connecting sleeve; 502. External connecting sleeve; 503. Adjusting sleeve; 504. Fastening bolt;

[0031] 5021, First docking tube; 5022, Second docking tube. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0033] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] Please refer to Figures 1 to 5 This utility model provides a portable high-temperature infrared temperature measurement and calibration source, including a housing 1. Inside the housing 1 are a lamp compartment 2, an adjustable power supply 3, and a circuit board 4. The outer wall of the housing 1 is provided with a temperature probe docking assembly 5, a standard temperature display module 6, a measured temperature display module 7, a voltage and current display module 8, a standard probe socket 9, a measured probe socket 10, a voltage adjustment knob 11, and a current adjustment knob 12.

[0035] The lamp chamber 2 is cylindrical, and a blackbody cavity 13 is opened inside the lamp chamber 2. A halogen tungsten lamp 14 is inserted into the blackbody cavity 13. Specifically, the lamp chamber 2 is cylindrical, and a blackbody cavity 13 is opened inside it. The halogen tungsten lamp 14 is fixed inside the housing 1 and inserted into the blackbody cavity 13. The cylindrical shape of the space of the lamp chamber 2 makes its internal energy field more uniform.

[0036] The docking assembly 5 includes an inner docking cylinder 501, an outer docking cylinder 502, and an adjusting sleeve 503. The inner docking cylinder 501 is fixedly connected to and communicates with the outer docking cylinder 502. The end of the inner docking cylinder 501 away from the outer docking cylinder 502 extends into the lamp housing 2 and aligns with the opening of the blackbody cavity 13. The adjusting sleeve 503 is detachably connected to the end of the outer docking cylinder 502 away from the inner docking cylinder 501. The adjusting sleeve 503 is used for inserting and docking a standard infrared temperature measuring probe 23 or an infrared temperature measuring probe to be calibrated. Specifically, the adjusting sleeve 503 is detachably connected to the outer docking cylinder 502. By replacing the adjusting sleeve 503 with different inner diameters, it is possible to fix infrared temperature measuring probes of different sizes, thereby expanding its applicability.

[0037] The halogen lamp 14, voltage and current display module 8, voltage adjustment knob 11, and current adjustment knob 12 are all electrically connected to the adjustable power supply 3 and are used to adjust the voltage and current values ​​of the halogen lamp 14. Specifically, the voltage and current display module 8 uses a 5-digit high-brightness digital tube block. The voltage and current of the adjustable power supply 3 are adjusted by the voltage adjustment knob 11 and the current adjustment knob 12. The voltage and current of the adjustable power supply 3 are monitored intuitively by the voltage and current display module, thereby realizing the adjustment of the radiated energy of the halogen lamp 14.

[0038] The standard temperature display module 6, the measured temperature display module 7, the standard probe socket 9, and the measured probe socket 10 are all electrically connected to the circuit board 4. The standard probe socket 9 is used to connect to the standard infrared temperature probe 23, and the measured probe socket 10 is used to connect to the infrared temperature probe to be calibrated. The standard temperature display module 6 displays the temperature value measured by the standard infrared temperature probe, and the measured temperature display module 7 displays the temperature value measured by the infrared temperature probe to be calibrated. Specifically, each of the standard temperature display module 6 and the measured temperature display module 7 is connected to a toggle switch 15. By toggling the toggle switch 15 up and down, the corresponding standard temperature display module 6 or the measured temperature display module 7 is powered on and displays the value. The standard temperature display module 6 and the measured temperature display module 7 use 4-digit high-brightness digital tube blocks. The circuit board 4 collects the temperature values ​​measured by the standard infrared temperature probe 23 and the temperature values ​​of the infrared temperature probe to be calibrated, and transmits the collected signals to the corresponding standard temperature display module 6 or the measured temperature display module 7. The standard temperature display module 6 displays the temperature value collected by the standard infrared temperature probe 23, and the measured temperature display module 7 displays the temperature value collected by the infrared temperature probe to be calibrated.

[0039] During measurement, first, insert the standard infrared temperature probe 23 into the adjusting sleeve 503 and fix it in place. Then, insert the signal wire of the standard infrared temperature probe 23 into the standard probe socket 9. Illuminate the halogen lamp 14 with the standard infrared temperature probe 23. Turn on the corresponding toggle switch 15 to power on the standard temperature display module 6 and display the standard temperature. Next, adjust the voltage and current of the halogen lamp 14 by rotating the voltage adjustment knob 11 and the current adjustment knob 12, thereby changing the radiant energy of the halogen lamp 14. When the standard temperature display module 6 displays the desired temperature, lock it in place. The standard temperature display module 6 displays the temperature value; remove the standard infrared temperature probe 23, insert the infrared temperature probe to be calibrated into the adjustment sleeve 503, insert the signal line of the infrared temperature probe to be calibrated into the measuring probe socket 10, and turn on the corresponding toggle switch 15 to power on the measuring temperature display module 7 to display the temperature value collected by the measuring infrared temperature probe. Compare this value with the temperature value displayed by the standard temperature display module 9. The calibration is completed by cleaning, tidying, or setting the measuring infrared temperature probe to make its temperature value the same as the standard temperature value.

[0040] Preferred, such as Figure 1 and Figure 5 As shown, the outer docking cylinder 502 includes a first docking cylinder 5021 and a second docking cylinder 5022. The first docking cylinder 5021 is fixedly connected to the inner docking cylinder 501. The second docking cylinder 5022 is sleeved inside the first docking cylinder 5021 and slidably connected to the first docking cylinder 5021. The adjusting sleeve 503 is sleeved inside the second docking cylinder 5022 and threadedly connected to the second docking cylinder 5022. The inner wall of the adjusting sleeve 503 is provided with an internal thread.

[0041] Specifically, the adjustment sleeve 503 can be installed and removed by rotating it. By replacing the adjustment sleeve 503 with one of different inner diameters, it can be adapted to the installation of infrared temperature probes of different sizes. The replacement operation is simple and easy to implement, thus improving its applicability.

[0042] Furthermore, the second docking cylinder 5022 is slidably connected to the first docking cylinder 5021, and the second docking cylinder 5022 can be pulled to slide along its axial direction, thereby changing the distance between the adjusting sleeve 503 and the blackbody cavity 13.

[0043] Preferred, such as Figure 1 and Figure 5 As shown, the first docking cylinder 501 has multiple threaded through holes along its axial direction, and the second docking cylinder 5022 has multiple threaded grooves corresponding to the threaded through holes along its axial direction. Fastening bolts 504 are threaded into the threaded through holes, with their threads penetrating the threaded through holes and threaded into the threaded grooves. Specifically, the fastening bolts 504 are used to fix the adjusted first docking cylinder 5021 and second docking cylinder 5022.

[0044] Preferred, such as Figure 2 As shown, the standard probe socket 9 uses a 7-pin aviation socket, and the measuring probe socket 10 uses a 7-pin aviation socket. This is to prevent damage caused by mis-inserting the standard infrared temperature measuring probe 23 with the infrared temperature measuring probe to be calibrated.

[0045] Preferred, such as Figure 1 As shown, the housing 1 is also equipped with a power plug 16, a main power switch 17, and a halogen lamp power switch 18. The halogen lamp power switch 18 is connected to the adjustable power supply 3. Specifically, the power plug 16 is used to connect to the mains power, the main power switch 17 is used to supply power to the entire device, and the halogen lamp power switch 18 is used to control the power supply to the halogen lamp 14.

[0046] Preferred, such as Figure 1 As shown, a lamp housing mounting bracket 19 is also provided inside the housing 1. The lamp housing 2 mounting bracket has an oblong hole, and a bolt passes through the oblong hole. The lamp housing 2 and the lamp housing mounting bracket 19 are fixedly connected by the bolt. Specifically, the oblong hole allows adjustment of the front and rear position of the lamp housing 2 within the housing 1, and also allows adjustment of the distance between the blackbody cavity 13 and the docking assembly 5.

[0047] Preferred, such as Figure 1 As shown, lamp housing 2 is made of aluminum alloy, and the entire lamp housing 2 has been blackened. The blackening treatment improves the emissivity, and the lightweight aluminum alloy reduces the weight of the device, making it easier to transport.

[0048] It should be noted that a cooling fan 20 is installed on one side of the lamp housing 2 to remove the heat generated by the lamp housing 2 during operation after the measurement is completed.

[0049] Preferred, such as Figure 1 and Figure 4 As shown, the outer wall of the housing 1 is provided with a hook 21 for placing a standard infrared temperature probe 23.

[0050] It should be noted that a strip-shaped heat dissipation vent is provided on the outer side wall of the housing 1 for heat dissipation inside the housing 1.

[0051] Preferred, such as Figure 1 , Figure 3 and Figure 4 As shown, symmetrical handling handles 22 are provided on the outer wall of the housing 1. The handling handles 22 facilitate the transport of the calibration device to the infrared thermometer to be calibrated, avoiding the need to disassemble the infrared thermometer from the assembled equipment and improving the convenience of calibration.

[0052] Working principle:

[0053] Connect the power supply to the mains via power plug 16, turn on the main power switch 17 and the halogen lamp power switch 18, first insert the standard infrared temperature probe 23 into the adjusting sleeve 503 and fix it in place, then insert the signal wire of the standard infrared temperature probe 23 into the standard probe socket 9, so that the standard infrared temperature probe 23 is pointing at the halogen lamp 14, and turn on the corresponding toggle switch 15 to power on the standard temperature display module 6 and display the standard temperature measured by the standard infrared temperature probe 23; then, adjust the voltage and current of the halogen lamp 14 by rotating the voltage adjustment knob 11 and the current adjustment knob 12 to make the temperature inside the blackbody cavity 13 reach the required temperature, and then lock the temperature value displayed by the standard temperature display module 6; remove the standard infrared temperature probe 23, and then connect the lamp to be calibrated. The infrared temperature probe is inserted into the adjusting sleeve 503, and the signal line of the infrared temperature probe to be calibrated is inserted into the measuring probe socket 10. The corresponding toggle switch 15 is turned on to power on the measuring temperature display module 7 and display the temperature value collected by the measuring infrared temperature probe. This value is compared with the temperature value displayed by the standard temperature display module 9. The measuring infrared temperature probe is cleaned, tidied, or set to make its temperature value the same as the standard temperature value, thus completing the calibration. This enables a rapid and stable temperature control effect inside the blackbody cavity, reducing errors when calibrating the infrared thermometer. The adjusting sleeve 503 is detachably connected to the external docking cylinder 502. By replacing the adjusting sleeve 503 with different inner diameters, infrared temperature probes of different sizes can be fixed, expanding its applicability.

[0054] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0055] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A portable high-temperature infrared temperature measurement and calibration source, characterized in that, The system includes a housing, within which are a lamp holder, an adjustable power supply, and a circuit board. The outer wall of the housing is equipped with a temperature probe docking assembly, a standard temperature display module, a measured temperature display module, a voltage and current display module, a standard probe socket, a measured probe socket, a voltage adjustment knob, and a current adjustment knob. The lamp housing is cylindrical, and a blackbody cavity is formed inside the lamp housing. A halogen tungsten lamp is inserted inside the blackbody cavity. The docking assembly includes an inner docking cylinder, an outer docking cylinder, and an adjusting sleeve. The inner docking cylinder is fixedly connected to and communicates with the outer docking cylinder. The end of the inner docking cylinder away from the outer docking cylinder extends into the lamp housing and aligns with the opening of the blackbody cavity. The adjusting sleeve is detachably connected to the end of the outer docking cylinder away from the inner docking cylinder. The adjusting sleeve is used for inserting a standard infrared temperature measuring probe or an infrared temperature measuring probe to be calibrated into the dock. The halogen tungsten lamp, the voltage and current display module, the voltage adjustment knob, and the current adjustment knob are all electrically connected to the adjustable power supply. The voltage adjustment knob and the current adjustment knob are used to adjust the voltage and current values ​​of the halogen tungsten lamp. The standard temperature display module, the measured temperature display module, the standard probe socket, and the measured probe socket are all electrically connected to the circuit board. The standard probe socket is used to connect to a standard infrared temperature measuring probe, and the measured probe socket is used to connect to an infrared temperature measuring probe to be calibrated. The standard temperature display module is used to display the temperature value measured by the standard infrared temperature measuring probe, and the measured temperature display module is used to display the temperature value measured by the infrared temperature measuring probe to be calibrated.

2. The portable high-temperature infrared temperature measurement and calibration source according to claim 1, characterized in that, The external docking cylinder includes a first docking cylinder and a second docking cylinder. The first docking cylinder is fixedly connected to the internal docking cylinder. The second docking cylinder is sleeved inside the first docking cylinder and slidably connected to the first docking cylinder. The adjusting sleeve is sleeved inside the second docking cylinder and threadedly connected to the second docking cylinder. The inner wall of the adjusting sleeve is provided with internal threads.

3. The portable high-temperature infrared temperature measurement and calibration source according to claim 2, characterized in that, The first docking cylinder has multiple threaded through holes along its axial direction, and the second docking cylinder has multiple threaded grooves corresponding to the threaded through holes along its axial direction. A fastening bolt is threadedly connected to the threaded through hole, and the fastening bolt threadedly passes through the threaded through hole and is threadedly connected to the threaded groove.

4. The portable high-temperature infrared temperature measurement and calibration source according to claim 1, characterized in that, The standard probe socket uses a 7-pin aviation socket, and the measurement probe socket uses a 7-pin hole aviation socket.

5. A portable high-temperature infrared temperature measurement and calibration source according to claim 1, characterized in that, The housing is also equipped with a power plug, a main power switch and a halogen lamp power switch, and the halogen lamp power switch is electrically connected to the adjustable power supply.

6. The portable high-temperature infrared temperature measurement and calibration source according to claim 1, characterized in that, The housing is also provided with a lamp housing fixing frame, which has an oblong hole and a bolt passing through the oblong hole. The lamp housing and the lamp housing fixing frame are fixedly connected by the bolt.

7. The portable high-temperature infrared temperature measurement and calibration source according to claim 1, characterized in that, The lamp housing is made of aluminum alloy and the entire lamp housing is blackened.

8. A portable high-temperature infrared temperature measurement and calibration source according to claim 1, characterized in that, The outer wall of the housing is provided with a hook for placing a standard infrared temperature probe.

9. A portable high-temperature infrared temperature measurement and calibration source according to claim 1, characterized in that, The outer wall of the housing is symmetrically provided with handling handles.

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