Dr. Guan-yu Lin Profile

Dr. Guan-yu Lin

at CIOMP

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Proceedings Article | 19 October 2016 Paper

The system of high accuracy UV spectral radiation system

Guan-yu Lin, Lei Yu, Dian Xu, Dian-sheng Cao, Yu-Xiang Yu

Proceedings Volume 10155, 101552C (2016) https://doi.org/10.1117/12.2247003

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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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