CN111623887B - Human body infrared temperature measurement superconducting heat pipe surface source blackbody calibration source system - Google Patents
Human body infrared temperature measurement superconducting heat pipe surface source blackbody calibration source system Download PDFInfo
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/025—Interfacing a pyrometer to an external device or network; User interface
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/20—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
- G01J5/22—Electrical features thereof
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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Abstract
The invention discloses a surface source calibration source system of a black body target plate of a superconducting heat pipe for human body infrared temperature measurement, wherein a non-radiation surface of the black body target plate of the superconducting heat pipe is contacted with a black body target plate heater which is superposed with a semiconductor refrigerator of the black body target plate, the black body target plate heater and the semiconductor refrigerator of the black body target plate are powered by a heating and cooling power supply circuit, the heating and cooling power supply circuit is electrically connected with an RTD temperature measurement control circuit, and the RTD temperature measurement control circuit performs system-level temperature measurement curve fitting and precision compensation calibration on the inside of the RTD temperature measurement control circuit through an engineering mode, so that the high-precision measurement reaches +/-0.1 ℃ and the high stability +/-0.3 ℃; the superconducting heat pipe black body target plate, the target plate heater, the heating and cooling piece, the power supply and control circuit and the RTD temperature measurement control circuit integrated assembly achieves the effects of rapidly starting and rapidly calibrating in the rapid installation and deployment process, and can gradually improve the high-precision temperature measurement performance in the system operation process in a multi-cycle interactive mode.
Description
Technical Field
The invention belongs to the field of body temperature measuring equipment, and particularly relates to a calibration source system for a human body infrared temperature measuring system.
Background
In the field of health and epidemic prevention, because more serious disease patients caused by viruses like Ebola virus (Ebola), 2019 novel coronavirus (2019-nCoV), Middle East Respiratory Syndrome (MERS) and Severe Acute Respiratory Syndrome (SARS) have fever and fever, and the patients have high infectious risk at the moment, the infrared thermal imaging body temperature monitoring system is used for detecting the body temperature in dense crowds, so that a potential infectious person method can be found, pre-warned and selected, and the method is an effective epidemic situation control mode. However, the conventional infrared thermal imaging device has poor temperature accuracy, and needs calibration during use to achieve accurate temperature measurement, so that a blackbody source is needed to be used for calibration or as a temperature reference.
When the conventional blackbody source equipment calibrates the thermal imaging temperature measurement system, interactive communication and closed-loop feedback control cannot be realized between the two systems, namely, the blackbody source generates temperature deviation due to external reasons and cannot be reflected to the infrared thermal imaging measurement end in time, so that the two equipment cannot form an automatic calibration process; or when the infrared thermal imaging is automatically calibrated, the real-time temperature data of the black body source equipment cannot be accurately acquired, so that error superposition is formed, the accuracy of a measurement result is reduced, and the temperature of a measurement target human body cannot be accurately captured; in the calibration process, the set data is generally input into the temperature measurement system manually, once the environment changes and the temperature drifts and deviates, the input needs to be adjusted manually again, such as shift work or periodic switching operation, and the process is complicated and the accuracy repeatability is poor. When an infrared temperature measuring device measures temperature data, if the temperature data is not calibrated, the temperature data may not be accurate, so that a reference value is needed, namely a calibration source device is needed, and after calibration is formed by comparing measured values, the temperature value obtained by the infrared temperature measuring device is considered to be credible. In addition, environmental data (such as measurement distance and environmental temperature and humidity parameters) also affect the measurement result, conventional blackbody source equipment cannot provide comprehensive information for such temperature measurement equipment, and the blackbody is generally limited to be used in a laboratory environment or used in a strict and extensive scientific research, so the following problems exist:
1. the design target of the conventional blackbody source is not developed for the purpose of infrared human body testing, the temperature range of the blackbody source is from +10 to +100 ℃, and even can reach-20 to +400 ℃ or wider, the general temperature precision is +/-1 to 2 ℃, and the stability is +/-0.3 to 0.5 ℃, the temperature is in the range of +30 to +42 ℃ of human body core temperature measurement, the measurement result of the temperature deviation reaching 1 to 2 ℃ can cause wrong judgment, and the precision and the stability in the human body temperature measurement temperature range are not ideal enough.
2. The temperature of the blackbody source is difficult to quickly reach a set value and keep stable in a period of starting, the normal process needs 1-5 minutes, and the temperature cannot be used as a reference value in the period.
3. The conventional infrared thermal imaging human body temperature measurement system is directly connected with a blackbody source without data communication, so that the automatic calibration of the infrared thermal imaging human body temperature measurement system is difficult to realize, the temperature calibration cannot be continuously realized in real time by continuously using the blackbody, and the use is inconvenient.
4. Because of the temperature deviation problem of the measurement environment, the infrared thermal imaging human body temperature measurement system has no reliable relative temperature measurement value in the image data of the measurement result, and the later data and the infrared image are difficult to judge whether the measurement result is accurate, which seriously depends on the original precision of the black body calibration source, the rigidness degree of the calibration process and the reliability and precision of the infrared thermal imaging human body temperature measurement system with medium-low cost.
5. The infrared temperature measurement is related to the ambient temperature and humidity, and an ordinary infrared thermal imaging system needs to rely on external data to form internal compensation during high-precision measurement.
6. The distance of black body influences the temperature measurement precision, and conventional black body size is on the small side, and image recognition that no special shape is used for infrared thermal imager carries out the accurate reading of size and converts distance parameter reduction temperature reading error into.
7. The black body becomes necessary calibration equipment in a medium-low cost infrared thermal imaging human body temperature measurement system, otherwise, the deviation of the measurement result is large, the reliability of the measurement result is low and unreliable, but the cost of the conventional black body source equipment is high, the price is high, the practical application scale and the scene are limited, and the public epidemic prevention expense is high;
8. the volume is larger and heavier, the installation and the fixation are inconvenient, and the device is not suitable for moving or rapid arrangement and use.
Disclosure of Invention
The invention aims to provide a human body infrared temperature measurement superconducting heat pipe black body target plate surface source calibration source system which is high in precision, good in stability, rapid in starting and capable of communicating in real time.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a human infrared temperature measurement superconducting heat pipe black body target plate face source calibration source system, includes superconducting heat pipe black body target plate, the non-radiant surface contact black body target plate heater of superconducting heat pipe black body target plate, black body target plate heater stack black body target plate semiconductor cooler, and black body target plate heater and black body target plate semiconductor cooler are provided the power by heating and cooling power supply circuit, and heating and cooling power supply circuit electricity connection RTD temperature measurement control circuit.
Furthermore, the RTD temperature measurement control circuit is electrically connected with the environmental parameter sensor module and the data interface module, and the black body target plate heater is electrically connected with the RTD temperature measurement element.
Furthermore, the data interface module comprises a bluetooth wireless data interface module, a WiFi wireless data interface module and an RS232 serial data interface module.
Furthermore, the RS232 serial data interface, the Bluetooth wireless interface and the WiFi wireless interface receive external parameter instructions and send the external parameter instructions to the RTD temperature measurement control circuit and the external control circuit, and the superconducting heat pipe black body target plate is controlled to reach the set target temperature to work.
Furthermore, the RTD temperature measurement element is closely combined with a heating and cooling power supply circuit, and the heating and cooling power supply circuit is loaded on the surface of the black body target plate heater.
Furthermore, the superconducting heat pipe black body target plate, the black body target plate heater, the RTD temperature measurement element, the heating and cooling power supply circuit, the RTD temperature measurement control circuit and the black body target plate semiconductor cooler form a single temperature point, and the single temperature point is superposed or expanded to form a multi-point temperature zone.
By implementing the technical scheme of the invention, because the superconducting heat pipe blackbody target plate is contacted with the blackbody target plate heater and the blackbody target plate semiconductor cooler, the RTD temperature measurement control circuit carries out precision compensation calibration on a system-level temperature measurement curve in the RTD temperature measurement control circuit through an engineering mode, and high-precision measurement is realized to reach +/-0.1 ℃ and high-stability +/-0.3 ℃; the blackbody target plate, the heater and the measurement control circuit integrated assembly can quickly start and quickly calibrate in the quick installation and deployment process, namely before the equipment does not reach the set absolute reference temperature, the thermal imaging temperature measurement system can be quickly calibrated and measured and used, and the precision of the system in the operation process can be gradually and interactively improved in a multi-cycle mode.
The invention is widely applied to the fields of public health epidemic prevention, safety protection monitoring and emergency search and rescue, and also has the following beneficial effects:
1. the method provides reliable relative temperature measurement values for the measurement images and data of the infrared thermal imaging human body temperature measurement system, does not excessively depend on the precision of the original blackbody source and the accuracy of the calibration process, and is simple and quick to operate.
2. The acquisition and interaction of real-time temperature data and environment temperature and humidity data are realized by adopting a mode of adding Bluetooth, WiFi wireless communication and RS232 serial port communication outside a superconducting heat pipe black body target plate, so that the whole thermal infrared imaging human body temperature measurement system is calibrated with high precision, and the calibration data is used as the calibration data, thereby continuously realizing the accurate interpretation of the temperature of other measured human bodies in a thermal imaging visual field, realizing the automatic calibration of the system, and quickly, stably and continuously providing calibration assistance for the infrared thermal imaging human body temperature measurement system.
3. The black body is provided with a square (or regular quadrilateral) target plate, can be calibrated to be the infrared target size, and can greatly facilitate the image calculation of the infrared thermal imaging temperature measurement system to be converted from the size to the measurement distance for temperature compensation, thereby realizing higher measurement precision.
4. The temperature control, heating and inorganic flat superconducting heat pipe black body target plate which takes a high-precision platinum RTD (resistance temperature detector) as a core is combined into an integrated assembly, and the inorganic flat superconducting heat pipe black body target plate has extremely excellent heat conductivity coefficient performance and ultra-fast heat transfer capacity to a black body radiation surface, so that the system can be quickly started and quickly calibrated, and can quickly enter a working state and keep an extremely stable working state due to the second-level reaction speed; the acquisition and interaction of high-precision temperature data and environment temperature and humidity data are realized by additionally arranging a Bluetooth, WiFi wireless communication and RS232 serial port communication mode, so that the whole thermal infrared imaging human body temperature measurement system is calibrated with high precision.
5. The infrared thermal imaging human body temperature measurement system is specially used for reference calibration of a high-precision human body temperature measurement system, a high-precision result is obtained through reasonable technical combination and ingenious application modes, the use convenience is improved, the cost investment is reduced, high-benefit application is achieved, the infrared thermal imaging human body temperature measurement system is suitable for more human body temperature measurement environments, the sanitation and epidemic prevention protection efficiency is improved, the epidemic situation risk is reduced, the infrared thermal imaging human body temperature measurement system can be adapted to conventional low-medium-cost infrared thermal imaging human body temperature measurement systems to achieve high-benefit application, and the infrared thermal imaging human body temperature measurement system is suitable for large-scale popularization and application to reduce public epidemic prevention expenses.
6. The system is provided with a Bluetooth wireless interface, a WiFi wireless interface and an RS232 serial data interface, can realize wireless and wired external data communication connection, can greatly facilitate the external equipment to actively and timely acquire and obtain the working temperature data of the equipment, write in and control target reference temperature, and realize a large loop feedback working mechanism of 'testing equipment-testing environment-tested human body-testing equipment' in a systematic flow of linkage work with the external equipment, so that the system outputs an accurate measuring result.
7. The device can provide double-temperature-point or even more-point temperature zones under strict application requirement conditions, form reference comparison of zone temperature, namely calibration of an absolute temperature zone range between two points, realize interactive wireless control on internal temperature, realize high-precision infrared temperature measurement results in a complex measurement environment for human body temperature measurement, and is particularly suitable for application requirements of individuals to be measured in an infrared thermal imaging system, wherein the individuals to be measured have abnormal body temperature, and the temperature environment changes rapidly and has large temperature difference with a human body reference temperature;
8. the size is about conventional 1/3-1/10, the weight is light <1kg, and the device can be adapted to various supports to realize movement and quick arrangement;
9. the system has high thermal efficiency, and the ultra-low power consumption can be supplied with power by using a small mobile power supply and realize long-time work;
10. the cost is low, the cost performance is about 1/10-1/3 of the price of a conventional black body, the infrared thermal imaging human body temperature measurement system can be adapted to the conventional medium-low cost to realize high-benefit application, and the infrared thermal imaging human body temperature measurement system is suitable for large-scale popularization and application and reduces public epidemic prevention expenses.
Drawings
FIG. 1 is a schematic structural diagram of a human body infrared temperature measurement system including a superconducting heat pipe black body target plate surface black body calibration source system.
FIG. 2 is a schematic structural diagram of a human body infrared temperature measurement superconducting heat pipe blackbody target plate surface source calibration source system.
Fig. 3 is a schematic structural diagram of a human body infrared temperature measurement system with a double-point temperature zone.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in figure 1, the human body infrared temperature measurement system is composed of a superconducting heat pipe blackbody target plate 1, a blackbody target plate heater 2, an RTD temperature control element 3, a heating and cooling power supply circuit 4, an RTD temperature measurement control circuit 5, an environmental parameter sensor module 6, a blackbody target plate semiconductor cooler 7 and a data interface module 9.
Superconducting heat pipe black body target plate 1 contact black body target plate heater 2 and black body target plate semiconductor refrigerator 7, black body target plate heater 2 and black body target plate semiconductor refrigerator 7 are provided with the power by heating refrigeration supply circuit 4, RTD temperature measurement control circuit 5 is connected to heating refrigeration supply circuit 4 electricity, environmental parameter sensor module 6 and data interface module 9 are connected to RTD temperature measurement control circuit 5 electricity, data interface module is including bluetooth wireless data interface module, wiFi wireless data interface module and RS232 serial data interface module, RTD temperature control element 3 is connected to black body target plate heater 2 electricity.
As shown in fig. 2, the RTD temperature control element 3 of the multi-stage temperature feedback loop is tightly combined with the heating and cooling power supply circuit 4, and the heating and cooling power supply circuit 4 is directly mounted on the surface of the black body target plate heater 2. In this way, the heat emitted by the heating and cooling power supply circuit 4 can be superposed with the heat of the black body target plate heater 2, the combined action of the two can lead the whole heating and temperature rise to be rapid, the heating efficiency is greatly improved, the starting time is shortened, the thermal resistances of the three can be greatly reduced, the heating is synchronously carried out, the temperature is fed back to the core temperature control RTD temperature control element 3, and the performance reaches the shortest reaction time and the best precision.
After the combination is completed, the heat-conducting materials are overlapped on one side inside the superconducting heat pipe black body target plate 1, namely, the heat generated by the heating body can be quickly and uniformly transferred to all surfaces of the superconducting heat pipe black body target plate 1, and the close gaps of the combination are filled with high-heat-conductivity heat-conducting silicone grease to reduce the heat resistance of heat transfer.
The superconducting heat pipe blackbody target plate 1 has extremely excellent heat conductivity coefficient performance and ultra-fast heat transfer capacity to the blackbody radiation surface, and the second-level reaction speed of the superconducting heat pipe blackbody target plate can enable the system to rapidly enter a working state and keep extremely stable work. The special spray paint for the black body is sprayed on one surface of the outer side of the superconducting heat pipe black body target plate 1, and the paint surface has the characteristics of high thermal emissivity and electromagnetic wave radiation absorption function required by the black body. The heat conducted by the superconducting heat pipe black body target plate forms heat surface source radiation on the surface of the black body paint, the surface source heat radiation is uniform and has a visible set plane size, the surface source heat radiation can be detected by an external infrared temperature detector or an infrared thermal imaging temperature measurement system, and meanwhile, the temperature of the radiation surface and the temperature detected by the RTD temperature control element 3 form closed loop feedback, stability and approach consistency.
The RTD temperature measurement control circuit 5 superposed on the superconducting heat pipe black body target plate 1 detects the temperature same as the black body radiation surface, converts the temperature into temperature parameters and sends the temperature parameters to a communication line, and sends the temperature parameters to the outside through an RS232 serial data interface 9, a Bluetooth wireless interface and a WiFi wireless interface in real time for a temperature measurement system to receive reference.
The RTD temperature measurement control circuit 5 accessible engineering mode carries out the accurate calibration of system level temperature measurement curve to its inside, the circuit possesses parts such as nonvolatile memory and singlechip treater, can realize the accurate curve calibration function of human temperature full warm area, the system sets for standard human reference temperature to 36.5 degrees centigrade usually, can be simultaneously according to practical application scene requirement, accept external parameter instruction and send to RTD temperature measurement control circuit and external control circuit through RS232 serial data interface, bluetooth wireless interface, wiFi wireless interface, make superconductive heat pipe black body target plate 1 reach the target temperature of settlement and carry out work.
The ambient temperature and humidity sensor module 6 has the function of collecting ambient temperature and humidity data in real time, and simultaneously transmits the ambient temperature and humidity data and blackbody source data synchronously in real time for external temperature measuring equipment to use.
The single temperature point can provide a relatively accurate measurement result, under the strict application requirement condition, the equipment can even provide interval reference contrast of double temperature points to form calibration of an absolute interval temperature range, can realize a high-precision infrared temperature measurement result in a complex measurement environment for human body temperature measurement, and is particularly suitable for application conditions in a tested individual, particularly an infrared thermal imaging system, for finding abnormal body temperature among people with rapid temperature environment change and large temperature difference with human body reference temperature. (for example, a group of people walking from a cold area of an air conditioner into a temperature measuring area needs a more accurate reference for the temperature difference between the upper and lower temperature of the measured object).
For example, a group of people walking into a temperature measurement area from a cooler area of an air conditioner needs more accurate reference of upper and lower temperature differences in temperature differences of a measured body, for example, the reference temperature of the human body is 36.5 ℃, the forehead temperature of the measured human body a and the forehead temperature of the measured human body B appearing below 20 ℃ in a cold environment are both lower than 36.5 ℃, the human body a is 36.5 ℃, the forehead temperature is 32.5 ℃ by contrast, the forehead temperature is higher than 4 ℃ but the forehead temperature of the measured human body a and the forehead temperature of the measured human body B are both lower than 36.5 ℃, both of the measured human body a and the measured human body B are likely to be determined to be normal, and the infrared thermal imager calibrated in the temperature range of 25-36.5 ℃ can still maintain sufficient accuracy at the low temperature end of 25 ℃, and determine that the human body a is 4 ℃ higher than the human body B, and the human body a may have a body temperature that is too high, that is, namely, the normal body temperature of the measured human body a may reach 40.5 ℃.
The system with double temperature points can set other blackbody radiation surfaces to required temperature according to actual requirements so as to improve the relative measurement precision of the infrared thermal imaging temperature measurement system and achieve higher absolute precision.
The temperature zone calibration is realized by adopting 1-2 temperature points, and the calibration mode of a multi-point and multi-temperature zone can be realized by overlapping or expanding the number of the modes; the temperature measuring range can be filled to be in a range of-20 to +400 ℃, and the two temperatures cover the temperature range of 30-42 ℃ of the human body.
The device adopts a temperature control, heating and superconducting heat pipe black body target plate integrated assembly taking a high-precision platinum RTD as a core, and an integrated technical combination mode, and in addition, the superconducting heat pipe black body target plate has extremely excellent heat conductivity coefficient performance and ultra-fast heat transfer capacity to the radiation surface of a black body, and the second-level reaction speed of the superconducting heat pipe black body target plate can enable the system to rapidly enter a working state and keep an extremely stable working state; compared with the conventional blackbody equipment adopting a pure copper metal heat-conducting component, the precision, the speed and the stability of the blackbody equipment are obviously improved.
The equipment is provided with a Bluetooth wireless interface, a WiFi wireless interface, an RS232 serial data interface, and can realize wireless and wired external data communication connection, so that the external equipment can be greatly convenient to actively and real-timely acquire and obtain the working temperature data of the equipment, the target reference temperature can be written and controlled, and a large loop feedback working mechanism of 'testing equipment-testing environment-tested human body-testing equipment' is realized in a systematic flow of linkage work with the external equipment, so that the system outputs an accurate measuring result.
The black body is provided with a square (or regular quadrilateral) target plate, and the infrared target size is calibrated, so that the image calculation of the infrared thermal imaging temperature measurement system can be greatly facilitated to be converted from size to measurement distance for temperature compensation, and higher measurement precision is realized;
the superconducting heat pipe blackbody target plate, such as a blackbody of a conventional heat pipe component, or other high-performance blackbody components, such as a carbon nanotube, a graphene heater and a blackbody function integrated component, can form a device with similar functions.
The Bluetooth and Wifi wireless communication interfaces can adopt Zigbee (based on IEE802.15.4 standard), RF (wireless RFID, radio frequency non-contact automatic identification technology) EnOcean (international standard ISO/IEC 14543-3-10), NB-IoT (cellular-based narrowband Internet of things), 4G/5G and other technical modes to obtain similar effects.
The planar heating device of the blackbody target plate heater 2 can be replaced by other heating devices, such as a carbon nanotube heating device and a graphene heating device, to realize similar functions.
The high-precision temperature measurement circuit in the RTD temperature measurement control circuit 5 is provided with a nonvolatile memory, a single-chip processor and other parts in an engineering mode, and the function of calibrating the precision curve of the whole temperature region of the human body temperature can be realized.
The above-mentioned embodiment is single temperature point human infrared temperature measurement system, in order to accord with stricter application demand condition, this system can also provide two warm areas.
As shown in FIG. 3, a single-point temperature zone composed of a superconducting heat pipe blackbody target plate, a blackbody target plate heater, an RTD temperature measurement element, a heating and cooling power supply circuit, an RTD temperature measurement control circuit and a blackbody target plate semiconductor cooler is overlapped or expanded to form a multi-point temperature zone. Specifically, the double-point temperature-zone human body infrared temperature measurement system is provided with a temperature zone point A and a temperature zone point B, reference comparison of zone temperature is formed, namely calibration of an absolute temperature zone range between the two points, an infrared temperature measurement result with higher precision can be realized in a complex measurement environment for human body temperature measurement, the infrared temperature measurement system is particularly suitable for application requirements of a measured individual with abnormal body temperature in an infrared thermal imaging system in people with rapid temperature environment change and large temperature difference with a human body reference temperature, the temperature measurement range can be increased to the range of-20 to +400 ℃, and the two points of temperature cover the human body temperature range of +30 to +42 ℃.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and these embodiments are still within the scope of the invention.
Claims (6)
1. The utility model provides a human infrared temperature measurement superconducting heat pipe black body target plate face source calibration source system which characterized in that: the device comprises a superconducting heat pipe black body target plate, wherein a non-radiation surface of the superconducting heat pipe black body target plate is contacted with a black body target plate heater, the black body target plate heater is superposed with a black body target plate semiconductor cooler, the black body target plate heater and the black body target plate semiconductor cooler are powered by a heating and cooling power supply circuit, and the heating and cooling power supply circuit is electrically connected with an RTD temperature measurement control circuit; the RTD temperature measurement element is closely combined with a heating and cooling power supply circuit, and the heating and cooling power supply circuit is loaded on the surface of the black body target plate heater; after the combination is completed, the heat conducting body is superposed on one side of the inner part of the superconducting heat pipe black body target plate, and the close gaps of the combination are filled with high-heat-conductivity heat conducting silicone grease so as to reduce the heat resistance of heat transfer.
2. The human body infrared temperature measurement superconducting heat pipe black body target plate surface source calibration source system of claim 1, characterized in that: the RTD temperature measurement control circuit is electrically connected with the environmental parameter sensor module and the data interface module, and the black body target plate heater is electrically connected with the RTD temperature measurement element.
3. The human body infrared temperature measurement superconducting heat pipe black body target plate surface source calibration source system of claim 2, characterized in that: the data interface module comprises a Bluetooth wireless data interface module, a WiFi wireless data interface module and an RS232 serial data interface module.
4. The human body infrared temperature measurement superconducting heat pipe black body target plate surface source calibration source system of claim 3, wherein: and the RS232 serial data interface, the Bluetooth wireless interface and the WiFi wireless interface receive external parameter instructions and send the external parameter instructions to the RTD temperature measurement control circuit and the external control circuit to control the superconducting heat pipe black body target plate to achieve the purpose of setting the temperature for working.
5. The human body infrared temperature measurement superconducting heat pipe black body target plate surface source calibration source system of claim 1, characterized in that: the high-precision temperature measurement circuit in the RTD temperature measurement control circuit is provided with a nonvolatile memory, a single-chip microcomputer processor and other components in an engineering mode, and can realize the functions of curve fitting and precise calibration of a human body temperature full-temperature area.
6. The human body infrared temperature measurement superconducting heat pipe black body target plate surface source calibration source system of claim 2, wherein: the superconducting heat pipe black body target plate, the black body target plate heater, the RTD temperature measurement element, the heating and cooling power supply circuit, the RTD temperature measurement control circuit and the black body target plate semiconductor cooler form a single-point temperature region, and the single-point temperature region is overlapped or expanded to form a multi-point temperature region.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05243168A (en) * | 1992-02-26 | 1993-09-21 | Mitsubishi Electric Corp | Substrate temperature control device |
| JPH10294170A (en) * | 1997-04-17 | 1998-11-04 | Seta Giken:Kk | Vapor generating and heating device |
| CN204963191U (en) * | 2015-08-15 | 2016-01-13 | 江阴振江生物科技有限公司 | Novel air heater |
| CN105562307A (en) * | 2015-12-21 | 2016-05-11 | 北京振兴计量测试研究所 | Radiant panel, preparation process thereof and infrared standard radiation device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63138220A (en) * | 1986-11-28 | 1988-06-10 | Chino Corp | Blackbody furnace |
| CN203837818U (en) * | 2014-06-04 | 2014-09-17 | 隆青强 | Calibration apparatus for infrared temperature measurement system |
| KR20160075053A (en) * | 2014-12-19 | 2016-06-29 | 한국항공우주연구원 | Black Body Assembly For Calibration Of Infrared Sensor, And Black Body Temperature Controlling System Including The Same |
| CN206074130U (en) * | 2016-09-13 | 2017-04-05 | 洛阳市质量技术监督检验测试中心 | Standard black body radiation source |
| CN110108389A (en) * | 2019-05-30 | 2019-08-09 | 泰安德美机电设备有限公司 | The dedicated calibrator (-ter) unit of ear thermometer |
-
2020
- 2020-06-05 CN CN202010505353.2A patent/CN111623887B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05243168A (en) * | 1992-02-26 | 1993-09-21 | Mitsubishi Electric Corp | Substrate temperature control device |
| JPH10294170A (en) * | 1997-04-17 | 1998-11-04 | Seta Giken:Kk | Vapor generating and heating device |
| CN204963191U (en) * | 2015-08-15 | 2016-01-13 | 江阴振江生物科技有限公司 | Novel air heater |
| CN105562307A (en) * | 2015-12-21 | 2016-05-11 | 北京振兴计量测试研究所 | Radiant panel, preparation process thereof and infrared standard radiation device |
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