Methods to reduce low-frequency noise in optic sensor

Jidong Chen; Xinqiao Chen; Xiaoyan Tian

doi:10.1117/12.318184

13 August 1998 Methods to reduce low-frequency noise in optic sensor

Jidong Chen, Xinqiao Chen, Xiaoyan Tian

Proceedings Volume 3555, Optical and Fiber Optic Sensor Systems; (1998) https://doi.org/10.1117/12.318184
Event: Photonics China '98, 1998, Beijing, China

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.

Citation Download Citation

Jidong Chen, Xinqiao Chen, and Xiaoyan Tian "Methods to reduce low-frequency noise in optic sensor", Proc. SPIE 3555, Optical and Fiber Optic Sensor Systems, (13 August 1998); https://doi.org/10.1117/12.318184

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