萨格纳克型的光纤振动传感器

Translated title of the contribution: Fiber optic vibration sensor based on sagnac effect

Shicai Cao, Zhengfeng Zou*, Lei Fu, Shufen Chen, Yimin Feng, Yanbin Meng, Xinyue Zhu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A probe type optical fiber vibration sensor based on Sagnac effect is developed, and the amplitude measurement algorithm is deduced by using the recursive formula of Bessel function. The sensor uses 980nm laser through a wide spectrum light source erbium doped fiber pumped by 1550nm, to obtain the interference signal at the output generated by the optical fiber ring in the Sagnac effect. The sensor is used to measure the vibration source with frequencies from 8.1 kHz to 11.3 kHz, the experimental data are consistent with the simulation analysis. The error of frequency measurement is less than 0.6%, and the discreteness of amplitude measurement data is small.

Translated title of the contributionFiber optic vibration sensor based on sagnac effect
Original languageChinese (Traditional)
Pages (from-to)586-589
Number of pages4
JournalGuangxue Jishu/Optical Technique
Volume45
Issue number5
Publication statusPublished - 1 Sept 2019

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