scholarly journals Signal recognition basing on optical fiber vibration sensor

2013 ◽  
Author(s):  
Haiyan Xu ◽  
Zhuo Zhang ◽  
Xuewu Zhang
Keyword(s):  
Optical Fiber ◽  
Vibration Sensor ◽  
Signal Recognition

scholarly journals Signal Recognition Basing on Optical Fiber Vibration Sensor

2013 ◽  
Vol 347-350 ◽  
pp. 743-747
Author(s):  
Hai Yan Xu ◽  
Zhuo Zhang ◽  
Xue Wu Zhang
Keyword(s):  
Optical Fiber ◽  
Pattern Matching ◽  
Optical Fiber Sensor ◽  
Continuous Distribution ◽  
Vibration Sensor ◽  
Signal Recognition ◽  
Long Distance ◽  
Signal Characteristics ◽  
Distributed Optical Fiber Sensor ◽  
Distributed Optical Fiber

Distributed optical fiber sensor can acquire the information of physical field along time and spatial continuous distribution. It plays an important role in long-distance oil and electricity transmission and security. In this paper, the author introduced the universal steps in triggering pattern recognition, which includes signal characteristics extracting by accurate endpoint detecting, templates establishing by training, and pattern matching. By training the samples acquired in the laboratory, three templates are established. And pattern matching had been done between templates and all the samples. The results show that, 87.5 percent of the samples are matched correctly with the triggering patterns they are belonging to.

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.

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

Optical fiber intrusion signal recognition method based on TSVD-SCN

2019 ◽  
Vol 48 ◽  
pp. 270-277 ◽  
Author(s):  
Zhiyong Sheng ◽  
Zhiqiang Zeng ◽  
Hongquan Qu ◽  
Yuan Zhang
Keyword(s):  
Optical Fiber ◽  
Signal Recognition ◽  
Recognition Method

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).

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