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Development of Self-calibrated Infrared Radiation Thermometer for Surface of Ground or Water |
CHANG Jia-qiang1,2,HAO Xiao-peng2,L Biao2,HU Zhao-yun1,2,SONG Jian2,3,LI Kai1,2,HAN Qi-jin4 |
1. College of Applied Nuclear Technology and Automation Engineering, Chengdu University of Technology,Chengdu, Sichuan 610059, China
2. National Institute of Metrology, Beijing 100029, China
3. Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
4. China Center for Satellite Date and Application, Beijing 100094, China |
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Abstract An instrument for measuring the radiation temperature of the ground or water surface with self-calibration function was developed. The design principle, specific structure, test procedure and final experimental results of the instrument were described. In order to verify the performance of the instrument, the emissivity measurement experiment of the calibration blackbody and the temperature stability test were carried out. The results show that the blackbody emissivity is higher than 0.996, and the temperature control stability is better than 0.04 K. The calibration of each temperature sensor was performed; The control and data acquisition procedures were completed; the radiation temperature measurement experiment of the prototype was carried out. Finally, the temperature range of the self-calibrated surface water meter infrared radiation thermometer is 223~333 K, and the temperature uncertainty is 0.2 K.
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Received: 10 October 2018
Published: 07 March 2019
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Corresponding Authors:
Xiaopeng Hao
E-mail: haoxp@nim.ac.cn
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