Title :
A Novel Fiber Bragg Grating Sensor with Temperature Compensation
Author :
Lin, Yuchi ; Wang, Wei
Author_Institution :
State Key Lab. of Precision Meas. Technol. & Instrum., TianJin Univ. TianJin, Tianjin, China
Abstract :
A novel Fiber Bragg Grating sensor with temperature compensation function was designed which can be used for structure health monitoring in harsh environment. The sensor achieved temperature compensation with a reference Fiber Bragg Grating. From the strain experiment and temperature experiment, it showed that the linear fitting degree of the strain curve and temperature curve were above 99%. And the temperature sensitivities of strain Grating and reference Grating were 11.2 pm/ C and 4.3 pm/ C, respectively. Two kinds of Fiber Bragg Grating rosettes based on the designed sensor were introduced which applied the multiplexing ability of FBG and could be used in practice.
Keywords :
Bragg gratings; compensation; fibre optic sensors; fiber Bragg grating sensor; strain curve; temperature compensationstructure health monitoring; temperature curve; temperature sensitivity; Bragg gratings; Capacitive sensors; Fiber gratings; Marine vehicles; Monitoring; Polyimides; Refractive index; Strain measurement; Substrates; Temperature sensors;
Conference_Titel :
Photonics and Optoelectronics, 2009. SOPO 2009. Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-4412-0
DOI :
10.1109/SOPO.2009.5230219
