Study on noise characteristics of photoelectric detection system and noise reduction design

doi:10.37188/OPE.20202812.2674

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	Study on noise characteristics of photoelectric detection system and noise reduction design
	Y. Li,L.-Q. Wang,Y. Huang,G.-Y. Lin,H. Zhang and Y.-M. Song
	2020
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	1004924X
卷号	28 期号:12 页码:2674-2683
摘要	A photoelectric detection system based on a lock-in amplifier was developed. The noise characteristics of each part of the system, such as the photomultiplier, amplifier, and high-voltage power supply, were analyzed quantitatively. Research has shown that the ripple of the high-voltage power supply has a significant effect on system noise. Three high-voltage power supplies with different ripples were installed in the system, and the noise was analyzed. The results showed that in darkness, system noise was mainly contributed by photomultiplier anode dark noise and noise from the high-voltage power supply ripple linearly coupling into the system. In light, photomultiplier anode shot noise contributed the most to the system noise, and noise contributed by the high-voltage power supply ripple showed a positive correlation with both light current and ripple value. Based on the above findings, the transfer function of the high-voltage power supply was analyzed, and its feedback coefficient was optimized. A high-voltage power supply with high stability and low ripple (less than 5 mV) was designed. The signal-to-noise ratio test of the system showed that the signal-to-noise ratio could be significantly improved by applying self-developed high-voltage power supplies, which were 38% and 125% higher than those of other high-voltage power sources (ripples of 15 and 50 mV, respectively). 2020, Science Press. All right reserved.
DOI	10.37188/OPE.20202812.2674
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收录类别	EI
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64921
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. Li,L.-Q. Wang,Y. Huang,G.-Y. Lin,H. Zhang and Y.-M. Song. Study on noise characteristics of photoelectric detection system and noise reduction design[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2020,28(12):2674-2683.
APA	Y. Li,L.-Q. Wang,Y. Huang,G.-Y. Lin,H. Zhang and Y.-M. Song.(2020).Study on noise characteristics of photoelectric detection system and noise reduction design.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,28(12),2674-2683.
MLA	Y. Li,L.-Q. Wang,Y. Huang,G.-Y. Lin,H. Zhang and Y.-M. Song."Study on noise characteristics of photoelectric detection system and noise reduction design".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 28.12(2020):2674-2683.

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