19 October 2016 The system of high accuracy UV spectral radiation system
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Proceedings Volume 10155, Optical Measurement Technology and Instrumentation; 101552C (2016) https://doi.org/10.1117/12.2247003
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China
Abstract
UV spectral radiation detecting and visible observation telescope is designed by the coaxial optical. In order to decrease due to the incident light polarization effect, and improve the detection precision, polarizer need to be used in the light path. Four pieces of quartz of high Precision UV radiation depolarizer retarder stack together is placed in front of Seya namioka dispersion unit. The coherent detection principle of modulation of light signal and the reference signal multiplied processing, increase the phase sensitive detector can be adjustment function, ensure the UV spectral radiation detection stability. A lock-in amplifier is used in the electrical system to advance the accuracy of measurement. To ensure the precision measurement detected, the phase-sensitive detector function can be adjustable. the output value is not more than 10mV before each measurement, so it can be ensured that the stability of the measured radiation spectrum is less than 1 percent.
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Guan-yu Lin, Lei Yu, Dian Xu, Dian-sheng Cao, Yu-Xiang Yu, "The system of high accuracy UV spectral radiation system", Proc. SPIE 10155, Optical Measurement Technology and Instrumentation, 101552C (19 October 2016); doi: 10.1117/12.2247003; https://doi.org/10.1117/12.2247003
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