Lijing Cai, Kailai Zhou, Guizhu Shen, Yiyang Yao, Lanxin Qiu, Chongde Zi, Xun Cao. High-precision temperature measurement and calibration technology of infrared thermal imager[J]. Infrared and Laser Engineering, 2021, 50(10): 20210043
- Infrared and Laser Engineering
- Vol. 50, Issue 10, 20210043 (2021)
Fig. 1. Schematic diagram of radiation received by infrared thermal imager
Fig. 2. Temperature measurement calibration device
Fig. 3. Blackbody temperature measurement curve of 38 ℃ after calibration with baffle
Fig. 4. Comparison of effects before and after temperature measurement calibration
Fig. 5. Fitting results of temperature measurement
Fig. 6. Temperature measurement results before and after temperature compensation
Fig. 7. Fitting curve of temperature compensation
Fig. 8. Temperature curve after calibrating and correcting with compensation
Fig. 9. Relative error of temperature curves
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Table 1. Comparison of relative errors before and after calibration of temperature measurement
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