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Proceedings Paper

Methods to reduce low-frequency noise in optic sensor
Author(s): Jidong Chen; Xinqiao Chen; Xiaoyan Tian
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Paper Abstract

This paper states the kinds of methods to reduce the low- frequency noise in fiber-optic sensor with frequency- spectrum analysis. The author thinks most of the noise frequency will be mixed with the signal frequency in optic- isolated optical measuring system and the result is the low- frequency noise is shifted to the signal frequency band. So, the low-frequency noise can not simply be removed by band- passed filter in theory. The author discusses kinds of methods treating the low-frequency noise and puts forward a new one, the method of A/D conversion. It is an easy realizable, good effective and low-cost method for most application.

Paper Details

Date Published: 13 August 1998
PDF: 5 pages
Proc. SPIE 3555, Optical and Fiber Optic Sensor Systems, (13 August 1998); doi: 10.1117/12.318184
Show Author Affiliations
Jidong Chen, China Univ. of Mining and Technology in Beijing (China)
Xinqiao Chen, China Univ. of Mining and Technology in Beijing (China)
Xiaoyan Tian, China Univ. of Mining and Technology in Beijing (China)


Published in SPIE Proceedings Vol. 3555:
Optical and Fiber Optic Sensor Systems
Shanglian Huang; Kim D. Bennett; David A. Jackson, Editor(s)

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