The non-source temperature calibration method of multi-spectral pyrometer

Kun Sun; Xiaogang Sun; Jingmin Dai; Li Wang

doi:10.1117/12.905826

30 November 2011 The non-source temperature calibration method of multi-spectral pyrometer

Kun Sun, Xiaogang Sun, Jingmin Dai, Li Wang

Proceedings Volume 8201, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 82011O (2011) https://doi.org/10.1117/12.905826
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

Abstract

At present, Multi-spectral pyrometer (MSP) used in high-temperature measurement has already had high resolution and high signal to noise ratio. However, the non-source temperature (higher than 3000°C) calibration falls far behind the development of MSP and has already seriously hindered the precision and application range of the pyrometer. In order to break through the limitation of calibration of non-source temperature, a new calibration method has been put forward in this paper. The temperature-voltage (T-U) model is formed based on power function where output voltage U of the MSP is derived from its corresponding known temperature point. Based on the model, Derivative least square method is used to obtain the parameters of the model to realize the non-source temperature calibration. Both theoretical and experimental data have proved the efficiency and precision of the calibration method. In addition, within the spectral range of high-temperature measurement pyrometer (0.4um~1.1um), the theoretical aberration within 1800°C extrapolation range is less than 13.54°C.

Citation Download Citation

Kun Sun, Xiaogang Sun, Jingmin Dai, and Li Wang "The non-source temperature calibration method of multi-spectral pyrometer", Proc. SPIE 8201, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 82011O (30 November 2011); https://doi.org/10.1117/12.905826

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