Fiber Bragg grating strain gauge rosette with temperature compensation

1998 ◽  
Author(s):  
Frank M. Haran ◽  
Jason K. Rew ◽  
Peter D. Foote
Keyword(s):  
Fiber Bragg Grating ◽  
Strain Gauge ◽  
Temperature Compensation ◽  
Bragg Grating ◽  
Strain Gauge Rosette

Research on Temperature Compensation of the Fiber Bragg Grating Sensor and the Resistance Strain Gauge

2021 ◽  
Vol 16 (6) ◽  
pp. 1020-1027
Author(s):  
Feng Zhu ◽  
Min Liu ◽  
Chengjun Xu ◽  
Sheng Zou ◽  
Chentong Chen ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Strain Gauge ◽  
Temperature Compensation ◽  
Metal Structure ◽  
Resistance Strain ◽  
Fiber Bragg Grating Sensor ◽  
Bragg Grating ◽  
Resistance Strain Gauge ◽  
Strain Monitoring ◽  
Bragg Grating Sensor

The fiber Bragg grating sensor is widely used in strain monitoring of large metal structure and trend to replace the resistance strain gauge due to its advantages of strong stability, high measurement accuracy, multiple points measuring, strong environmental suitability and long transmission distance. The temperature-induced strain, which can have the same order of magnitudes as the mechanically-induced strain, will cause great errors in the strain monitoring. Therefore, the temperature compensation for the sensors is essential to guarantee the measurement accuracy. The existing theoretical models and experiment platforms for analyzing the temperature compensation are established by assuming that the testing temperature is constant. However, the surrounding temperature of some large metal structure is not stable, and the effect of temperature change cannot be neglected. This paper aims to establish an analytic model and an experiment platform to compare the temperature compensation of the fiber bragg grating sensor and the resistance strain gauge. The superiority of the temperature compensation for the fiber bragg grating sensor is verified. The result provides theoretical support for choosing the fiber bragg grating sensor in the long-time strain monitoring.

Advanced layout of a fiber Bragg grating strain gauge rosette

2006 ◽  
Vol 24 (2) ◽  
pp. 1019-1026 ◽  
Author(s):  
D.C. Betz ◽  
G. Thursby ◽  
B. Culshaw ◽  
W.J. Staszewski
Keyword(s):  
Fiber Bragg Grating ◽  
Strain Gauge ◽  
Bragg Grating ◽  
Strain Gauge Rosette

A Fiber Bragg Grating acceleration sensor with temperature compensation

Optik ◽  
2021 ◽  
pp. 166993
Author(s):  
Xianfeng Zhao ◽  
Zhen’an Jia ◽  
Wei Fan ◽  
Wangfei Liu ◽  
Hong Gao ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Temperature Compensation ◽  
Bragg Grating ◽  
Acceleration Sensor

Investigation on Temperature Compensation of Fiber Bragg Grating Sensors for Hull Monitoring

2018 ◽  
Author(s):  
Ruiqi Ma ◽  
Guoqing Feng ◽  
Huilong Ren ◽  
Peng Fu ◽  
Shuang Wu ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Fiber Bragg Grating ◽  
Temperature Compensation ◽  
Compensation Method ◽  
Bragg Grating ◽  
Theoretical Derivation ◽  
Temperature Changes ◽  
Hull Girder ◽  
Fbg Sensor ◽  
Fbg Sensors

Hull monitoring system with Fiber Bragg Grating (FBG) sensors increasingly receives people’s attentions. However, for the ship hull monitoring, the deformation of hull girder changes a lot as is subjected to a huge temperature variation. Therefore, the compensation method with only FBG temperature self-correction is not suitable for the hull monitoring sensors because no material thermal expansion effects are reasonably included. In this paper, the new compensation method of hull monitoring FBG sensor based on the sensor theory with both FBG temperature self-correction and steel thermal expansion effects correction is studied. The coupled compensation method suitable for hull monitoring sensor is obtained by theoretical derivation. As the comparison, the coupled compensation experiment was carried out. The results show that the relative error under the temperature compensation method is large in the case of drastic strain and temperature changes, and the correction results of the tested method will be closer to the true level.

Application of optical fiber Bragg grating strain gauge to cable force monitoring of FAST

2015 ◽  
Vol 23 (4) ◽  
pp. 919-925 ◽  
Author(s):  
孙晓 SUN Xiao ◽  
王启明 WANG Qi-ming ◽  
朱明 ZHU Ming ◽  
吴明长 WU Ming-chang
Keyword(s):  
Optical Fiber ◽  
Fiber Bragg Grating ◽  
Strain Gauge ◽  
Bragg Grating ◽  
Cable Force ◽  
Force Monitoring ◽  
Optical Fiber Bragg Grating

Research on a Fiber Bragg Grating Strain Sensor for Tower Vibration

2014 ◽  
Vol 496-500 ◽  
pp. 1373-1375
Author(s):  
Jin Feng Geng ◽  
Hong Sheng Cai ◽  
Yong Tao Wei ◽  
Xiao Huan Shen ◽  
Jun Wei Dong
Keyword(s):  
Fiber Bragg Grating ◽  
Temperature Compensation ◽  
Strain Sensor ◽  
Compensation Method ◽  
Bragg Grating ◽  
Encapsulation Process ◽  
Tower Vibration

In order to monitor the key parts strain of tower vibration, design a fiber Bragg grating strain sensor, and introduce its structure, encapsulation process and temperature compensation method.

Passive temperature compensation package for fiber Bragg grating

2006 ◽  
Author(s):  
Weiping Yan ◽  
Zixue Guo ◽  
Cong Wang ◽  
Yushu Zhang ◽  
Guotong Du
Keyword(s):  
Fiber Bragg Grating ◽  
Temperature Compensation ◽  
Bragg Grating ◽  
Compensation Package
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