Active wavelength demodulation of a Bragg grating fibre optic strain sensor using a quantum well electroabsorption filtering detector

1996 ◽  
Vol 32 (19) ◽  
pp. 1811 ◽  
Author(s):  
T. Coroy ◽  
R.M. Measures
Keyword(s):  
Quantum Well ◽  
Strain Sensor ◽  
Bragg Grating ◽  
Fibre Optic

A fibre optic Bragg grating strain sensor for monitoring ventilatory movements

2001 ◽  
Vol 12 (7) ◽  
pp. 805-809 ◽  
Author(s):  
Günther Wehrle ◽  
Percy Nohama ◽  
Hypolito José Kalinowski ◽  
Pedro Ignácio Torres ◽  
Luiz Carlos Guedes Valente
Keyword(s):  
Strain Sensor ◽  
Bragg Grating ◽  
Fibre Optic

Active wavelength demodulation of Bragg fibre-optic strain sensor using acousto-optic tunable filter

1995 ◽  
Vol 31 (18) ◽  
pp. 1602-1603 ◽  
Author(s):  
T. Coroy ◽  
R.M. Measures ◽  
J.H. Belk ◽  
P.J. Ellerbrock
Keyword(s):  
Strain Sensor ◽  
Tunable Filter ◽  
Fibre Optic

Early-Age Autogenous Shrinkage of High-Performance Concrete Columns by Embedded Fiber Bragg-Grating Sensor

2009 ◽  
Vol 419-420 ◽  
pp. 1-4 ◽  
Author(s):  
Ying Wei Yun ◽  
Ii Young Jang ◽  
Seong Kyum Kim ◽  
Seung Min Park
Keyword(s):  
Fiber Bragg Grating ◽  
High Performance ◽  
High Performance Concrete ◽  
Construction Material ◽  
Autogenous Shrinkage ◽  
Strain Sensor ◽  
Bragg Grating ◽  
Early Age ◽  
Long Time ◽  
Sensor Temperature

High-performance concrete (HPC) as a promising construction material has been widely used in infrastructures and high-rise buildings etc. However, its pretty high autogenous shrinkage (AS) especially in its early age becomes one of the key problems endangering long-time durability of HPC structures. This paper carried out the early age AS research of large scaled HPC column specimens by embedded Fiber Bragg-Grating (FBG) strain sensor. Temperature compensation for FBG strain sensor by thermocouple was also attempted in this paper, and the results were reasonable and acceptable comparing with the result compensated by FBG temperature sensor. Reinforcement influence, size effect and temperature effect on HPC AS were also analyzed respectively in this paper.

A novel fiber-laser-based fiber Bragg grating strain sensor with high-birefringence Sagnac fiber loop mirror

2008 ◽  
Vol 6 (11) ◽  
pp. 818-820 ◽  
Author(s):  
许鸥 Ou Xu ◽  
鲁韶华 Shaohua Lu ◽  
冯素春 Suchun Feng ◽  
简水生 Shuisheng Jian
Keyword(s):  
Fiber Laser ◽  
Fiber Bragg Grating ◽  
Strain Sensor ◽  
Bragg Grating ◽  
High Birefringence ◽  
Fiber Loop Mirror ◽  
Loop Mirror ◽  
Fiber Loop

Improved Accuracy of a Quasi-distributed Strain Sensor System by Using Fiber Bragg Grating Spectrum Restoration

2011 ◽  
Vol 61 (8) ◽  
pp. 750-754
Author(s):  
Gyoung-A KIM ◽  
 Jae-Soon YOON ◽  
Se-Jong BAIK ◽  
Kiegon IM*
Keyword(s):  
Fiber Bragg Grating ◽  
Strain Sensor ◽  
Sensor System ◽  
Bragg Grating ◽  
Improved Accuracy ◽  
Distributed Strain

A Glass-Fiber Packaged Fiber Bragg Grating Strain Sensor

2020 ◽  
Vol 57 (9) ◽  
pp. 090601
Author(s):  
陈剑 Chen Jian ◽  
郭永兴 Guo Yongxing ◽  
张礼朋 Zhang Lipeng
Keyword(s):  
Glass Fiber ◽  
Fiber Bragg Grating ◽  
Strain Sensor ◽  
Bragg Grating
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