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| Development and Evaluation of Digital Meter for an Infrared Radiation Thermometer |
| SHENG Shan-ju1,LU Xiao-feng2,TANG Xiao-jie3,HUAN Ke-wei1,WANG Xue-lian1 |
1. Changchun University of Science & Technology, Changchun, Jilin 130022, China
2. National Institute of Metrology, Beijing 100029, China
3. Xi‘an Polytechnic University, Xi'an, Shaanxi 710048, China |
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Abstract The IR-RST standard radiation thermometers manufactured by CHINO Company, Limited, Japan, which can not display the temperature in real-time because the display unit hadn’t been designed. Therefore, an electrical measurement display device was designed which can measure the voltage, display the temperature and supply 24V DC voltage for this kind of infrared radiation thermometer. Calibrated a against high-level voltage power source and a voltmeter, the correction coefficients of the display instrument were got, the stabilitywas evaluated as well, the maximum relative error of voltage measurement can be achieved with in 0.03%. Assembled with a 0.65μm IR-RST radiation thermometer, it was calibrated against with a TG HT-9500 type high-temperature furnace as the source, the accuracy was better than 0.03% confirmed by the experimental results, and the extended uncertainty of the calibration system was 0.62℃ at 1 300℃.
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Received: 30 August 2018
Published: 07 January 2019
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2019, Vol. 40 
