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
- Laser & Optoelectronics Progress
- Vol. 62, Issue 5, 0512005 (2025)
Fig. 1. Colorimetric temperature measuring device schematic diagram
Fig. 2. The relationship curves of wavelength and blackbody radiation emission degree at different temperatures
Fig. 3. The ratio curves of temperature and radiation power at different wavelengths
Fig. 4. The relation curves between temperature and sensitivity at different wavelengths
Fig. 5. The ratio curves of temperature and radiation power at different wavelength intervals
Fig. 6. The relation curves between temperature and sensitivity at different wavelength intervals
Fig. 7. The ratio curve of temperature and radiation power at different bandwidths
Fig. 8. Schematic diagram of photodetector circuit
Fig. 9. Schematic diagram of the photodetector conditioning circuit
Fig. 10. Static calibration experiment of colorimetric temperature measuring device
Fig. 11. Curve results of polynomial fitting method
Fig. 12. Colorimetric temperature measuring device
Fig. 13. Three groups of experimental relationship graph. (a) (c) (e) Temperature and time curves measured by the two devices in the three experiments respectively; (b) (d) (f) relative error curves of the temperature measured by the two devices in the three experiments respectively
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Table 1. The two voltage values and their ratios output by the colorimetric temperature measurement device
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