Enhanced sensitivity of optical fiber vibration sensor based on a radiofrequency Michelson interferometer

2021 ◽  
Author(s):  
Ming Deng ◽  
Tao Zhu ◽  
xinhao nan ◽  
Yangxu tang ◽  
Danqi Feng ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Michelson Interferometer ◽  
Vibration Sensor ◽  
Enhanced Sensitivity

The Strain Sensor with Enhanced Sensitivity Based on Improved Optical Fiber Michelson Interferometer

2021 ◽  
Author(s):  
Yongfeng Wu ◽  
Yulan Zhang ◽  
Yang Han ◽  
Jing Wu
Keyword(s):  
Optical Fiber ◽  
Michelson Interferometer ◽  
Strain Sensor ◽  
Enhanced Sensitivity

Vibration Sensing and Impact Location Detection Using Optical Fiber Vibration Sensor

2000 ◽  
Vol 183-187 ◽  
pp. 661-666
Author(s):  
Y.C. Yang ◽  
W. Hwang ◽  
Hyun Chul Park ◽  
Kyung Seop Han
Keyword(s):  
Optical Fiber ◽  
Vibration Sensor ◽  
Impact Location ◽  
Vibration Sensing ◽  
Location Detection

An etched optical fiber as a vibration sensor

2012 ◽  
Vol 55 (1) ◽  
pp. 75-79
Author(s):  
Putha Kishore ◽  
Dantala Dinakar ◽  
P. Vengal Rao ◽  
K. Srimannarayana
Keyword(s):  
Optical Fiber ◽  
Vibration Sensor

scholarly journals Fiber Optic Vibration Sensors

2021 ◽  
Author(s):  
Putha Kishore ◽  
Dantala Dinakar ◽  
Manchineellu Padmavathi
Keyword(s):  
Optical Fiber ◽  
Measurement Method ◽  
Fiber Optic ◽  
Sensor Response ◽  
Vibration Sensor ◽  
Vibration Measurement ◽  
Sensor Design ◽  
Plastic Optical Fiber ◽  
Intensity Modulated ◽  
Vibration Sensors

The sensors presented in this chapter are fiber optic intensity modulated vibrations sensors which are non-contact (extrinsic sensor) to the vibrating object. Three sensors presented make use of non-contact vibration measurement method with plastic fiber using distinct designs, improvement of the sensor response and advantages of one sensor over the other for diverse applications. First discussed about dual plastic optical fiber vibration sensor design and its response. Secondly, discussed about 1x2 fused coupler plastic optical fiber vibration sensor design with advantages over the first one. Finally, discussed about the 2x2 fused coupler plastic optical fiber vibration sensor design along with advantages than other two methods. At the end reported the final results with comparison.

Miniature structure optimization of Small-diameter FBG based one-dimensional optical fiber vibration sensor

2021 ◽  
pp. 1-1
Author(s):  
Han Song ◽  
Enzhong Song ◽  
Wang Peng ◽  
Boyi Wang ◽  
Yi Liu ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Small Diameter ◽  
Structure Optimization ◽  
Vibration Sensor ◽  
One Dimensional

A method of concurrent events signal reconstruction in ultra-long distance distributed optical fiber vibration sensor

2014 ◽  
Vol 40 (1) ◽  
pp. 89-93
Author(s):  
张金权 ZHANG Jinquan ◽  
李香文 LI Xiangwen ◽  
李东 LI Dong ◽  
张欣 ZHANG Xin ◽  
刘素杰 LIU Sujie ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Signal Reconstruction ◽  
Vibration Sensor ◽  
Long Distance ◽  
Distributed Optical Fiber ◽  
Concurrent Events

scholarly journals A Fiber Bragg Grating Based Torsional Vibration Sensor for Rotating Machinery

Sensors ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 2669 ◽  
Author(s):  
Jingjing Wang ◽  
Li Wei ◽  
Ruiya Li ◽  
Qin Liu ◽  
Lingling Yu
Keyword(s):  
Optical Fiber ◽  
Fiber Bragg Grating ◽  
Torsional Vibration ◽  
Electromagnetic Interference ◽  
Vibration Sensor ◽  
Vibration Measurement ◽  
Bragg Grating ◽  
Structural Parameter ◽  
Measurement Sensitivity ◽  
Fiber System

This paper proposes a new type of torsional vibration sensor based on fiber Bragg grating (FBG). The sensor has two mass ball optical fiber systems. The optical fiber is directly treated as an elastomer and a mass ball is fixed in the middle of the fiber in each mass ball fiber system, which is advantageously small, lightweight, and has anti-electromagnetic interference properties. The torsional vibration signal can be calculated by the four FBGs’ wavelength shifts, which are caused by mass balls. The difference in the two sets of mass ball optical fiber systems achieves anti-horizontal vibration and anti-temperature interference. The principle and model of the sensor, as well as numerical analysis and structural parameter design, are introduced. The experimental conclusions show that the minimum torsional natural frequency of the sensor is 27.35 Hz and the torsional vibration measurement sensitivity is 0.3603 pm/(rad/s2).

Reconfiguration of the multiwavelength operation of optical fiber ring lasers by the modifiable intra-cavity induced losses of an in-fiber tip probe modal Michelson interferometer

Laser Physics ◽  
2018 ◽  
Vol 28 (3) ◽  
pp. 035107 ◽  
Author(s):  
G Salceda-Delgado ◽  
A Martinez-Rios ◽  
J M Sierra-Hernandez ◽  
V C Rodríguez-Carreón ◽  
D Toral-Acosta ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Michelson Interferometer ◽  
Fiber Ring ◽  
Fiber Ring Lasers ◽  
Ring Lasers
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