Optical fiber grating sensor for force measurement of anchor cable

2006 ◽  
Vol 11 (3) ◽  
pp. 662-666
Author(s):  
Jiang Desheng ◽  
Fu Jinghua ◽  
Liu Shengchun ◽  
Sui Lingfeng ◽  
Fu Rong
2013 ◽  
Vol 765-767 ◽  
pp. 2444-2447 ◽  
Author(s):  
Wei Li ◽  
Yong Jia Zhang ◽  
Hong Qiao Wen

In order to increase the multiplying density of Fiber Bragg Grating (FBG) sensors, a novel FBG Sensing System based on CDMA technology has been developed. Simulation experiment indicates the CDMA technology combine with optical fiber grating sensing system together successfully. Furthermore, the system can distinguishes the FBG and enhance the FBG network band utilization.


2020 ◽  
Vol 238 ◽  
pp. 12009
Author(s):  
Walter S. J. Ferreira ◽  
Paulo S. S. dos Santos ◽  
Paulo Caldas ◽  
Pedro A. S. Jorge ◽  
João M. S. Sakamoto

In this work, a long-period fiber grating (LPG) based sensor was evaluated as a sensing device for micro-force measurement, in the order of micro Newtons. It was used an LPG fabricated by arc-inducted technique in a SMF-28 standard optical fiber. The optical fiber was fixed between two clamps with a separation of 150 mm with the middle of the LPG located at the center. Characterizations were performed in terms of temperature, curvature and strain. The grating was then used as a micro-force sensor by means of both curvature and strain, induced by a hung mass in a stretched fiber. Furthermore, the evaluation of a precurvature LPG was performed to assess if an increase of sensitivity is achieved. Micro-force sensitivity achieved with the stretched LPG was 1.41 nm/mN and it was demonstrated that its sensitivity can be enhanced to 5.14 nm/mN with a pre-curvature of 2.2 m–1 applied to the LPG, achieving a spectral resolution of at least 15.6 μN.


2016 ◽  
Vol 77 ◽  
pp. 315-322 ◽  
Author(s):  
Clotilde Ribaut ◽  
Valérie Voisin ◽  
Viera Malachovská ◽  
Valentin Dubois ◽  
Patrice Mégret ◽  
...  

2013 ◽  
Vol 336-338 ◽  
pp. 153-157 ◽  
Author(s):  
Ying Ying Wang ◽  
Chang Wang ◽  
Xiao Hui Liu ◽  
Qing Chao Zhao

A kind of optical fiber sensor testing the temperature and pressure under well is present. The temperature is measured by a FBG and the pressure is detected by the F-P cavity. The oxy-hydrogen is used to meld the fiber and glass capillary. The experiment results such as the cavity length changing in a long time under the condition of high temperature and pressure and the pressure calibration results are also given.


2004 ◽  
Author(s):  
Ricardo C. Kamikawachi ◽  
G. R. Possetti ◽  
Marcia Muller ◽  
Hypolito J. Kalinowski ◽  
Jose L. Fabris

Author(s):  
Barbara Rutyna Heidemann ◽  
Gustavo Rafael Collere Possetti ◽  
Lilian Cristina Cocco ◽  
Carlos Itsuo Yamamoto ◽  
Marcia Muller ◽  
...  

Sensors ◽  
2010 ◽  
Vol 10 (5) ◽  
pp. 4373-4380 ◽  
Author(s):  
Jaebum Son ◽  
Min-Kyoung Lee ◽  
Myung Yung Jeong ◽  
Chang-Seok Kim

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