Title :
A Novel Fiber Bragg Grating Temperature Compensated Strain Sensor
Author :
Du Yanliang ; Li Jianzhi ; Liu Chenxi
Author_Institution :
Key Lab. of Struct. Health Monitoring & Control, Shijiazhuang Railway Inst., Shijiazhuang
Abstract :
This paper analyzed the strain-temperature cross sensitive characteristic of optical fiber Bragg grating(FBG) theoretically, designed and made a novel FBG strain sensor. It has a temperature-compensated function, and it improves the effect of being sensitive to strain. To a certain extent, this sensor overcame the traditional temperature-compensated methods easy to have a creep and aged phenomenon. The experimental results show that the sensor realized the temperature sensitivity reduces to 1/10 before the seal, and the strain sensitivity increases to 1.4 pm/uepsiv over the temperature range from -10degC to 50degC .
Keywords :
Bragg gratings; compensation; fibre optic sensors; strain sensors; FBG strain sensor; fiber Bragg grating temperature compensated strain sensor; strain sensitivity; temperature sensitivity; Bragg gratings; Capacitive sensors; Fiber gratings; Optical design; Optical fiber sensors; Optical fibers; Optical sensors; Sensor phenomena and characterization; Temperature distribution; Temperature sensors; fiber Bragg grating; negative coefficient of thermal; strain; temperature compensated;
Conference_Titel :
Intelligent Networks and Intelligent Systems, 2008. ICINIS '08. First International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-0-7695-3391-9
Electronic_ISBN :
978-0-7695-3391-9
DOI :
10.1109/ICINIS.2008.27
