Fiber-Optic Michelson Accelerometer Based on Frequency Modulation

被引：10
|
作者：
Zhang, Tongxin [1 ]
Zhao, Yuefeng [1 ]
Wei, Dongmei [1 ]
Pan, Jie [1 ]
机构：
[1] Shandong Normal Univ, Coll Phys & Elect, Shandong Prov Key Lab Opt & Photon Device, Jinan 250014, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2014年 / 26卷 / 23期
基金：
中国国家自然科学基金;
关键词：
Fiber sensors; fiber Michelson interferometer; fiber testing and measurement; INTERFEROMETER; SEISMOMETER; DESIGN;
D O I：
10.1109/LPT.2014.2355256
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A high-accuracy fiber-optic Michelson accelerometer based on frequency modulation is demonstrated and a new type of sensing elements is designed in this letter. The interference optical waves are modulated and demodulated. In theory, the sensitivity of the accelerometer goes up with the increase of frequency. The experimental results demonstrate that when the modulation frequency increases from 200 to 800 Hz, the sensitivity increases from 0.188 to 0.751 rad/g and the average error of acceleration measurement is similar to 1%.
引用
收藏
页码：2361 / 2364
页数：4
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