Laser & Optoelectronics Progress, Volume. 62, Issue 5, 0512005(2025)
Design and Application of Dual-Band Specific Color Temperature Measuring Device
In dynamic temperature testing, the colorimetric temperature measurement method effectively reduces emissivity-related influences due to its unique temperature measurement principle, offering advantages such as fast response, wide temperature range, and non-intrusiveness. This study leverages colorimetric temperature measurement to design a dynamic temperature testing device. A comprehensive discussion is provided on the colorimetric temperature measurement principle, device configuration, dual-wavelength selection criteria, and photodetector circuit design. The device underwent static calibration using a high-temperature blackbody furnace, yielding a fitting equation between output voltage and corresponding temperature. To assess measurement accuracy, a hydrogen-oxygen water welding machine heated a stainless steel target to simulate a temperature field, and dynamic temperature measurements were simultaneously conducted using the calibrated device and a standard infrared thermometer. Experimental results indicate that the relative error of the colorimetric temperature measurement device remains below 5.4% within the 400?1200 ℃ range, demonstrating accurate dynamic temperature testing capabilities in this range.
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Haiying Shao, Zengliang Zhang, Xiaohan Ma, Yanfeng Li, Yuhang Fu, Jiabin Ma. Design and Application of Dual-Band Specific Color Temperature Measuring Device[J]. Laser & Optoelectronics Progress, 2025, 62(5): 0512005
Category: Instrumentation, Measurement and Metrology
Received: Jul. 15, 2024
Accepted: Aug. 20, 2024
Published Online: Mar. 12, 2025
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