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Design of a very high resolution FTIR atmospheric monitoring pre-amplifier circuit
Author(s): Zhengyang Yu; Xin Li; Zhipeng Gong; Jian Su; Yugui Zhang; Mao Yan
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Paper Abstract

Due to its high resolution, large flux, and high signal-to-noise ratio, Fourier Transform Infrared Spectroscopy (FTIR) is often used to monitor atmospheric environment. The preamplifier, as the key module of the FTIR optical receiver system, determines the accuracy, SNR and other key parameters of the subsequent signal directly. This paper presents a high gain and wide dynamic range preamplifier based on high performance integrated op amp. Using a low noise op amp IV conversion and multi-level Butterworth type active filter, a very weak signal input, multi-file Gain low noise and high SNR preamplifier circuit was designed. Experiments show: the preamplifier can make the signal of the atmospheric FTIR monitor meet the SNR and quality requirements.

Paper Details

Date Published: 12 March 2019
PDF: 12 pages
Proc. SPIE 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 110232X (12 March 2019); doi: 10.1117/12.2521824
Show Author Affiliations
Zhengyang Yu, Beijing Institute of Space Mechanics and Electricity (China)
Xin Li, Beijing Institute of Space Mechanics and Electricity (China)
Zhipeng Gong, Beijing Institute of Space Mechanics and Electricity (China)
Jian Su, Beijing Institute of Space Mechanics and Electricity (China)
Yugui Zhang, Beijing Institute of Space Mechanics and Electricity (China)
Mao Yan, Beijing Institute of Space Mechanics and Electricity (China)


Published in SPIE Proceedings Vol. 11023:
Fifth Symposium on Novel Optoelectronic Detection Technology and Application
Qifeng Yu; Wei Huang; You He, Editor(s)

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