Non-contact Micro Vibration Measurement System Based on Non-equilibrium Optical Fiber Michelson Interferometer

2015 ◽  
Author(s):  
Jie Zhang ◽  
Zhenguo Jing ◽  
Chuanqi Xing ◽  
Wei Peng
Keyword(s):  
Optical Fiber ◽  
Measurement System ◽  
Michelson Interferometer ◽  
Vibration Measurement ◽  
Micro Vibration ◽  
Non Equilibrium

Three-degree-of-freedom micro-vibration measurement system based on dual-frequency laser interference

2019 ◽  
Vol 27 (7) ◽  
pp. 1435-1443
Author(s):  
陈家键 CHEN Jia-jian ◽  
胡慧珠 HU Hui-zhu ◽  
缪立军 MIAO Li-jun ◽  
周一览 ZHOU Yi-lan ◽  
舒晓武 SHU Xiao-wu
Keyword(s):  
Measurement System ◽  
Degree Of Freedom ◽  
Vibration Measurement ◽  
Dual Frequency ◽  
Laser Interference ◽  
Frequency Laser ◽  
Micro Vibration ◽  
Three Degree Of Freedom

scholarly journals Research on Polarization and Phase Fading Compensation in Michelson Interferometer Based on 3 × 3 Coupler and Novel Probe with Built-in Faraday Rotator

2019 ◽  
Vol 9 (19) ◽  
pp. 4173
Author(s):  
Shuaiqi Jing ◽  
Jian Rong ◽  
Jiayan Tian
Keyword(s):  
Feedback Control ◽  
High Frequency ◽  
Michelson Interferometer ◽  
The Self ◽  
Vibration Measurement ◽  
Maximum Deviation ◽  
Faraday Rotator ◽  
Frequency Detection ◽  
Control Scheme ◽  
Micro Vibration

A self-designed probe and a feedback control scheme based on the Michelson interferometer with a 3 × 3 fiber coupler are proposed. A 45° Faraday rotator is built into the self-designed probe, and a feedback control scheme is used to judge the direction of increase or decrease for the phase compensation, so as to solve the problems of polarization and phase fading. In addition, a result-normalized method is applied in a micro-vibration measurement experiment. The experimental interferometer system achieves a high frequency of 1 MHz micro-vibration. The normalized results keep stable with a maximum deviation from the mean of 1.9% when the power of light reflected back into the self-designed probe is altered. Applied research is carried out by detecting the displacement due to a photoacoustic wave. Therefore, the experimental interferometer system is available for the practical application of micro-displacement measurements, noncontact high-frequency detection, and point-by-point image scanning in biological tissue.

Optical Fiber Vibration Measurement System with Temperature Compensation Function

2016 ◽  
Vol 45 (10) ◽  
pp. 1006005
Author(s):  
姚国珍 YAO Guo-zhen ◽  
李永倩 LI Yong-qian ◽  
尚秋峰 SHANG Qiu-feng ◽  
杨志 YANG Zhi
Keyword(s):  
Optical Fiber ◽  
Measurement System ◽  
Temperature Compensation ◽  
Vibration Measurement ◽  
Compensation Function

Vibration measurement system of dual-path detection based on Michelson interferometer

2009 ◽  
Author(s):  
Jing Liang ◽  
Jun Zhu ◽  
Chao Jiang ◽  
Fei Ai ◽  
Miaomiao Shi ◽  
...  
Keyword(s):  
Measurement System ◽  
Michelson Interferometer ◽  
Vibration Measurement ◽  
Path Detection
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