CN111912526A - Emissivity calibration method for infrared temperature measurement system - Google Patents
Emissivity calibration method for infrared temperature measurement system Download PDFInfo
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- CN111912526A CN111912526A CN202010476548.9A CN202010476548A CN111912526A CN 111912526 A CN111912526 A CN 111912526A CN 202010476548 A CN202010476548 A CN 202010476548A CN 111912526 A CN111912526 A CN 111912526A
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- infrared
- thermometer
- computer
- thermocouple
- emissivity
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000009529 body temperature measurement Methods 0.000 title abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 239000000523 sample Substances 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 2
- 238000004861 thermometry Methods 0.000 claims 3
- 238000005259 measurement Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
-
- 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
- G01J5/02—Constructional details
- G01J5/06—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
-
- 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
- G01J5/02—Constructional details
- G01J5/06—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
- G01J5/064—Ambient temperature sensor; Housing temperature sensor; Constructional details thereof
-
- 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
- G01J5/80—Calibration
- G01J5/802—Calibration by correcting for emissivity
-
- 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
- G01J5/80—Calibration
- G01J5/806—Calibration by correcting for reflection of the emitter radiation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
The invention discloses an emissivity calibration method for an infrared temperature measurement system, which belongs to the technical field of infrared temperature measurement and comprises a computer, wherein a thermocouple thermometer is arranged at the input end of the computer and comprises a data transmission module, and the input end of the computer is connected with the data transmission module through a lead; according to the invention, by arranging the thermocouple thermometer, the temperature of the object to be measured is accurately measured, the measurement precision is ensured, the measurement range is improved, the use convenience is ensured, the data of the thermocouple thermometer is compared with the temperature data of the infrared thermometer, the emissivity adjustment precision of the infrared thermometer is improved, the temperature measurement reliability is improved, the calibration convenience is ensured, the working efficiency is improved, the use quality is ensured, the accuracy and reliability of the measurement result are ensured, and the synchronous correction can be carried out in the continuous working process, so that the measurement error is prevented.
Description
Technical Field
The invention belongs to the technical field of infrared temperature measurement, and particularly relates to an emissivity calibration method for an infrared temperature measurement system.
Background
The infrared temperature measurement technology plays an important role in the aspects of product quality control and monitoring, online fault diagnosis and safety protection of equipment, energy conservation and the like in the production process. In the last 20 years, the non-contact infrared human body thermometer has been developed rapidly, the performance is improved continuously, the function is enhanced continuously, the variety is increased continuously, and the application range is expanded continuously. Compared with a contact temperature measurement method, the infrared temperature measurement method has the advantages of fast response time, non-contact, safe use, long service life and the like.
The prior art has the following problems: when the emissivity of the infrared thermometer is calibrated, the range of emissivity needing to be calibrated can be generally judged only through preset software, the accuracy of emissivity calibration cannot be guaranteed, the use quality is influenced, the measurement effect is reduced, the data error is large, manpower and material resources are wasted, the labor intensity is increased, and the working efficiency is influenced.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides an emissivity calibration method for an infrared temperature measurement system, which has the characteristic of high calibration precision.
In order to achieve the purpose, the invention provides the following technical scheme: the emissivity calibration method for the infrared temperature measurement system comprises a computer, wherein a thermocouple thermometer is arranged at the input end of the computer and comprises a data transmission module, and the input end of the computer is connected with the data transmission module through a lead.
Preferably, the input end of the thermocouple thermometer is connected with a thermocouple probe through a lead.
Preferably, the other input end of the computer is connected with an infrared thermometer, a data processing module is arranged in the infrared thermometer, and an infrared temperature measuring probe is arranged at the input end of the infrared thermometer.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, by arranging the thermocouple thermometer, the temperature of the object to be measured is accurately measured, the measurement precision is ensured, the measurement range is improved, the use convenience is ensured, the data of the thermocouple thermometer is compared with the temperature data of the infrared thermometer, the emissivity adjustment precision of the infrared thermometer is improved, the temperature measurement reliability is improved, the calibration convenience is ensured, the working efficiency is improved, the use quality is ensured, and the accuracy and reliability of the measurement result are ensured.
Drawings
FIG. 1 is a schematic diagram of the system component architecture of the present invention;
FIG. 2 is a schematic flow chart of the method of the present invention.
In the figure: 1. an infrared temperature measuring probe; 2. an infrared thermometer; 21. a data processing module; 3. a computer; 4. a thermocouple probe; 5. a thermocouple thermometer; 51. and a data transmission module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides the following technical solutions: the emissivity calibration method for the infrared temperature measurement system comprises a computer 3, wherein a thermocouple thermometer 5 is arranged at the input end of the computer 3, the thermocouple thermometer 5 comprises a data transmission module 51, the input end of the computer 3 is connected with the data transmission module 51 through a lead, and the data transmission module 51 is used for performing fidelity transmission on measured temperature data, so that the measurement accuracy is ensured, and the working quality is improved.
Specifically, the input end of the thermocouple thermometer 5 is connected with the thermocouple probe 4 through a lead.
By adopting the technical scheme, the thermocouple probe 4 is connected to the surface of the object to be measured in a brazing mode to form a closed loop, so that the contact end of the thermocouple probe 4 and the object to be measured is a temperature sensing part, the temperature sensing part and the thermocouple thermometer 5 have different temperatures, electromotive force can be generated in the closed loop, the electromotive force is converted into a temperature signal in the thermocouple thermometer 5 and then transmitted to the computer 3 through the data transmission module 51 for processing, the temperature measurement precision is guaranteed, the measurement range is improved, and the use convenience is guaranteed.
Specifically, another input end of the computer 3 is connected with an infrared thermometer 2, a data processing module 21 is arranged in the infrared thermometer 2, and an infrared temperature measuring probe 1 is arranged at the input end of the infrared thermometer 2.
By adopting the technical scheme, the infrared temperature measuring probe 1 detects the temperature data of the object to be measured, and the data processing module 21 in the infrared thermometer 2 processes the data and transmits the processed data to the computer 3 for storage, thereby ensuring the working efficiency and improving the working quality.
Specifically, the emissivity calibration method for the infrared temperature measurement system comprises the following steps:
firstly, aligning an infrared temperature measuring probe 1 to an object to be measured for signal acquisition, then processing the acquired signal through a data processing module 21 in an infrared thermometer 2, and finally transmitting the signal to a computer 3;
aligning the thermocouple probe 4 to an object to be detected for detection, so that the data transmission module 51 in the thermocouple thermometer 5 can transmit signals to the computer 3 under the condition of fidelity;
the computer 3 respectively receives the signals transmitted by the infrared thermometer 2 and the thermocouple thermometer 5, then carries out contrast processing, when the infrared radiation effect is quantified, because the radiation and infrared radiation absorption rule of the object meets kirchhoff law, when a beam of radiation is projected on the surface of any object, according to the energy conservation principle, the sum of the absorption rate, the reflection rate and the transmission rate of the object to the incident radiation is necessarily equal to 1, the infrared radiation can be known by the infrared radiation rate, the reflection rate and the transmission rate, the infrared radiation is required to be absorbed after being emitted, so the absorption rate is emissivity, the transmission rate is too small, the infrared thermometer 2 can not detect, the emissivity is ignored, the infrared radiation rate is obtained, the reflection rate is obtained, and therefore the contrast judgment can be carried out according to the temperature signals transmitted by the infrared thermometer 2 and the thermocouple thermometer 5, and calibrating the emissivity of the infrared thermometer 2 according to the temperature data of the thermocouple thermometer 5, and calibrating the emissivity of the infrared thermometer 2 to be the same as that of the thermocouple thermometer 5.
The working principle and the using process of the invention are as follows: when the device is used, an object to be measured is measured by the infrared temperature measuring probe 1, then temperature data is transmitted to the computer 3 for processing by the infrared temperature measuring instrument 2, the object to be measured is measured by the thermocouple probe 4, the measured accurate temperature data is transmitted to the computer 3 by the thermocouple temperature measuring instrument 5 and is compared with the data of the infrared temperature measuring instrument 2, so that the emissivity of the infrared temperature measuring instrument 2 is set to be the same as that of the thermocouple temperature measuring instrument 5, and the calibration accuracy is ensured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. An emissivity calibration method for an infrared thermometry system, comprising a computer (3), characterized in that: the temperature control system is characterized in that a thermocouple thermometer (5) is arranged at the input end of the computer (3), the thermocouple thermometer (5) comprises a data transmission module (51), and the input end of the computer (3) is connected with the data transmission module (51) through a lead.
2. The emissivity calibration method for the infrared thermometry system of claim 1, wherein: the input end of the thermocouple thermometer (5) is connected with a thermocouple probe (4) through a lead.
3. The emissivity calibration method for infrared thermometry system of claim 2, wherein: the other input end of the computer (3) is connected with an infrared thermometer (2), a data processing module (21) is arranged in the infrared thermometer (2), and an infrared temperature measuring probe (1) is arranged at the input end of the infrared thermometer (2).
4. The emissivity calibration method of claim 3, wherein the emissivity calibration method comprises: the emissivity calibration method comprises the following steps:
firstly, aligning an infrared temperature measuring probe (1) to an object to be measured to acquire signals, then processing the acquired signals through a data processing module (21) in an infrared thermometer (2), and finally transmitting the signals to a computer (3);
aligning the thermocouple probe (4) to an object to be detected for detection, so that a data transmission module (51) in the thermocouple thermodetector (5) can transmit signals to the computer (3) under the condition of fidelity;
and thirdly, the computer (3) carries out comparison processing after receiving signals transmitted by the infrared thermometer (2) and the thermocouple thermometer (5) respectively, and obtains an emissivity value to be calibrated after the processing and calculation are finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010476548.9A CN111912526A (en) | 2020-05-29 | 2020-05-29 | Emissivity calibration method for infrared temperature measurement system |
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| CN202010476548.9A CN111912526A (en) | 2020-05-29 | 2020-05-29 | Emissivity calibration method for infrared temperature measurement system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665734A (en) * | 2020-12-04 | 2021-04-16 | 杭州新瀚光电科技有限公司 | Temperature measurement method and device based on reference calibration |
| CN112729559A (en) * | 2020-12-29 | 2021-04-30 | 上海瑞岳机电设备有限公司 | Molten steel temperature monitoring system in LF stove |
| CN113252724A (en) * | 2021-05-21 | 2021-08-13 | 山东中坚工程质量检测有限公司 | Method for detecting heat preservation performance of external wall |
| CN114042507A (en) * | 2021-11-23 | 2022-02-15 | 湖南长仪微波科技有限公司 | Microwave high-temperature roasting planetary ball mill |
| CN114100787A (en) * | 2021-11-23 | 2022-03-01 | 湖南长仪微波科技有限公司 | Laboratory drum-type microwave high temperature roasting ball mill |
| CN114184281A (en) * | 2021-12-17 | 2022-03-15 | 矿冶科技集团有限公司 | Accurate temperature control method for unknown surface under gas medium |
| CN114184569A (en) * | 2021-12-03 | 2022-03-15 | 渤海大学 | Calibration method of emissivity measuring device |
| CN114264374A (en) * | 2021-12-27 | 2022-04-01 | 西南交通大学 | Temperature measurement calibration method for metal wire rapid heating equipment |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665734B (en) * | 2020-12-04 | 2023-08-04 | 杭州新瀚光电科技有限公司 | Temperature measurement method and device based on reference calibration |
| CN112665734A (en) * | 2020-12-04 | 2021-04-16 | 杭州新瀚光电科技有限公司 | Temperature measurement method and device based on reference calibration |
| CN112729559A (en) * | 2020-12-29 | 2021-04-30 | 上海瑞岳机电设备有限公司 | Molten steel temperature monitoring system in LF stove |
| CN113252724B (en) * | 2021-05-21 | 2022-05-31 | 山东中坚工程质量检测有限公司 | Method for detecting heat preservation performance of external wall |
| CN113252724A (en) * | 2021-05-21 | 2021-08-13 | 山东中坚工程质量检测有限公司 | Method for detecting heat preservation performance of external wall |
| CN114042507B (en) * | 2021-11-23 | 2022-11-29 | 湖南长仪微波科技有限公司 | Microwave high-temperature roasting planetary ball mill |
| CN114100787A (en) * | 2021-11-23 | 2022-03-01 | 湖南长仪微波科技有限公司 | Laboratory drum-type microwave high temperature roasting ball mill |
| CN114100787B (en) * | 2021-11-23 | 2022-11-29 | 湖南长仪微波科技有限公司 | Laboratory drum-type microwave high temperature calcination ball mill |
| CN114042507A (en) * | 2021-11-23 | 2022-02-15 | 湖南长仪微波科技有限公司 | Microwave high-temperature roasting planetary ball mill |
| CN114184569A (en) * | 2021-12-03 | 2022-03-15 | 渤海大学 | Calibration method of emissivity measuring device |
| CN114184569B (en) * | 2021-12-03 | 2023-08-29 | 渤海大学 | Calibration method of emissivity measuring device |
| CN114184281A (en) * | 2021-12-17 | 2022-03-15 | 矿冶科技集团有限公司 | Accurate temperature control method for unknown surface under gas medium |
| CN114264374A (en) * | 2021-12-27 | 2022-04-01 | 西南交通大学 | Temperature measurement calibration method for metal wire rapid heating equipment |
| CN114264374B (en) * | 2021-12-27 | 2023-08-25 | 西南交通大学 | Temperature measurement and calibration method for metal wire rapid heating equipment |
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