Vibration Sensor Based on Single Mode-Multimode Optic-Fiber Cantilever Structure

2016 ◽  
Vol 53 (6) ◽  
pp. 060601
Author(s):  
王红日 Wang Hongri ◽  
高仁喜 Gao Renxi ◽  
殷焱煊 Yin Yanxuan ◽  
付荣鹏 Fu Yongpeng ◽  
刘一 Liu Yi ◽  
...  
Keyword(s):  
Single Mode ◽  
Vibration Sensor ◽  
Optic Fiber ◽  
Cantilever Structure

scholarly journals Miniature on-fiber extrinsic Fabry-Perot interferometric vibration sensors based on micro-cantilever beam

2019 ◽  
Vol 8 (1) ◽  
pp. 293-298 ◽  
Author(s):  
Weiyi Ma ◽  
Yi Jiang ◽  
Han Zhang ◽  
Liuchao Zhang ◽  
Jie Hu ◽  
...  
Keyword(s):  
Cantilever Beam ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Vibration Sensor ◽  
Fiber Axis ◽  
Vibration Sensors ◽  
Beam Design ◽  
Cantilever Length ◽  
Fabry Perot ◽  
Micro Cantilever

Abstract An on-fiber extrinsic Fabry–Perot interferometric (EFPI) vibration sensor based on micro-cantilever beam is proposed and experimentally demonstrated. The micro-cantilever beam, with a cantilever length of 80μm and a cantilever thickness of 5μm, is created perpendicular to the fiber axis by using the femtosecond laser micro-machining technique. The on-fiber vibration sensor has same diameter with that of the single mode fiber. An acceleration sensitivity of 11.1 mV/g@300 Hz in the range of 0.5-5g is demonstrated experimentally. This on-fiber and micro-cantilever beam design allows for the sensor to be smaller size and higher temperature resistance.

A fiber micro-vibration sensor based on single-mode fiber ring laser

2009 ◽  
Vol 7 (1) ◽  
pp. 26-28 ◽  
Author(s):  
甄胜来 Shenglai Zhen ◽  
刘仁柱 Renzhu Liu ◽  
俞本立 Benli ◽  
张静 Jing Zhang ◽  
韩保刚 Baogang Han
Keyword(s):  
Ring Laser ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Vibration Sensor ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Micro Vibration

Study on Oil and Gas Pipeline Leakage Real-Time Inspection System Based on Distributed Optical Fiber

2008 ◽  
Vol 381-382 ◽  
pp. 447-450 ◽  
Author(s):  
Y. Zhou ◽  
Shi Jiu Jin ◽  
H. Feng ◽  
Z.M. Zeng ◽  
Z.G. Qu
Keyword(s):  
Optical Fiber ◽  
Real Time ◽  
Optical Fibers ◽  
Oil And Gas ◽  
Single Mode ◽  
Vibration Sensor ◽  
Inspection System ◽  
System Construction ◽  
Detection Technology ◽  
Distributed Optical Fiber

A new distributed optical fiber pipeline leakage detection technology based on Mach-Zehnder optical fiber interferometer theory is put forward. When using this technology, an optical fiber cable is laid along the pipeline. Noise from leaking point on the pipeline can be acquired by the optical fiber vibration sensor which was composed of three single mode optical fibers, thus, leakage occurred on the pipeline can be detected in real time. The detection principle and system construction are explained and in-site testing data is analyzed. With principle analysis and experimental results, it is demonstrated that the detection system’s measuring sensitivity and location accuracy for detecting leakage are high when adopting this technology.

Single mode optical fiber vibration sensor: design and development

2016 ◽  
Author(s):  
L. E. Alanis-Carranza ◽  
J. A. Alvarez-Chavez ◽  
G. G. Perez-Sanchez ◽  
A. Sierra-Calderon ◽  
J. C. Rodriguez-Novelo
Keyword(s):  
Optical Fiber ◽  
Single Mode ◽  
Vibration Sensor ◽  
Sensor Design ◽  
Design And Development ◽  
Single Mode Optical Fiber

Twist sensor based on Sagnac single-mode optic fiber interferometer

Optik ◽  
2013 ◽  
Vol 124 (24) ◽  
pp. 6676-6678 ◽  
Author(s):  
Houhui Liang ◽  
Mingming Sun ◽  
Yongxing Jin
Keyword(s):  
Single Mode ◽  
Optic Fiber

Statistics of intensity of backscattered semiconductor laser radiation in single-mode optic fiber

2012 ◽  
Vol 38 (1) ◽  
pp. 89-92 ◽  
Author(s):  
A. E. Alekseev ◽  
Ya. A. Tezadov ◽  
V. T. Potapov
Keyword(s):  
Laser Radiation ◽  
Semiconductor Laser ◽  
Single Mode ◽  
Optic Fiber

scholarly journals In-Fiber Collimator-Based Fabry-Perot Interferometer with Enhanced Vibration Sensitivity

Sensors ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 435 ◽  
Author(s):  
Bin Du ◽  
Xizhen Xu ◽  
Jun He ◽  
Kuikui Guo ◽  
Wei Huang ◽  
...  
Keyword(s):  
Low Cost ◽  
Single Mode ◽  
Vibration Sensor ◽  
Vibration Monitoring ◽  
Static Displacement ◽  
Vibration Sensitivity ◽  
Graded Index ◽  
Fabry Perot ◽  
Displacement Sensitivity ◽  
Fiber Collimator

A simple vibration sensor is proposed and demonstrated based on an optical fiber Fabry-Perot interferometer (FPI) with an in-fiber collimator. The device was fabricated by splicing a quarter-pitch graded index fiber (GIF) with a section of a hollow-core fiber (HCF) interposed between single mode fibers (SMFs). The static displacement sensitivity of the FPI with an in-fiber collimator was 5.17 × 10−4 μm−1, whereas the maximum static displacement sensitivity of the device without collimator was 1.73 × 10−4 μm−1. Moreover, the vibration sensitivity of the FPI with the collimator was 60.22 mV/g at 100 Hz, which was significantly higher than the sensitivity of the FPI without collimator (11.09 mV/g at 100 Hz). The proposed FPI with an in-fiber collimator also exhibited a vibration sensitivity nearly one order of magnitude higher than the device without the collimator at frequencies ranging from 40 to 200 Hz. This low-cost FPI sensor is highly-sensitive, robust and easy to fabricate. It could potentially be used for vibration monitoring in remote and harsh environments.

scholarly journals Pipeline Monitoring Using Highly Sensitive Vibration Sensor Based on Fiber Ring Cavity Laser

Sensors ◽  
2021 ◽  
Vol 21 (6) ◽  
pp. 2078
Author(s):  
Nageswara Lalam ◽  
Ping Lu ◽  
Abhishek Venketeswaran ◽  
Michael P. Buric
Keyword(s):  
Ring Laser ◽  
Ring Cavity ◽  
Single Mode ◽  
Vibration Sensor ◽  
Vibration Monitoring ◽  
Fiber Sensor ◽  
Fiber Ring ◽  
Lasing Wavelength ◽  
Highly Sensitive ◽  
Cavity Laser

A vibration fiber sensor based on a fiber ring cavity laser and an interferometer based single-mode-multimode-single-mode (SMS) fiber structure is proposed and experimentally demonstrated. The SMS fiber sensor is positioned within the laser cavity, where the ring laser lasing wavelength can be swept to an optimized wavelength using a simple fiber loop design. To obtain a better signal-to-noise ratio, the ring laser lasing wavelength is tuned to the maximum gain region biasing point of the SMS transmission spectrum. A wide range of vibration frequencies from 10 Hz to 400 kHz are experimentally demonstrated. In addition, the proposed highly sensitive vibration sensor system was deployed in a field-test scenario for pipeline acoustic emission monitoring. An SMS fiber sensor is mounted on an 18” diameter pipeline, and vibrations were induced at different locations using a piezoelectric transducer. The proposed method was shown to be capable of real-time pipeline vibration monitoring.

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