Title :
Transversal-Load Sensor by Using Local Pressure on a Chirped Fiber Bragg Grating
Author :
Fu, Hongyan ; Shu, Xuewen ; Suo, Rui ; Zhang, Lin ; He, Sailing ; Bennion, Ian
Author_Institution :
Centre for Opt. & Electromagn. Res., Zhejiang Univ., Hangzhou, China
fDate :
6/1/2010 12:00:00 AM
Abstract :
A transversal-load sensor based on the local pressure-induced refractive index change in a chirped fiber Bragg grating (CFBG) is proposed. The local pressure induced refractive index change in the touch point can generate a main transmission peak and several subpeaks on the long wavelength side of the reflection band of the CFBG. The difference of the wavelength shifts for the main transmission peak and the first subpeak is used to measure transversal-load with temperature compensation capability.
Keywords :
Bragg gratings; fibre optic sensors; pressure sensors; refractive index; chirped fiber bragg grating; local pressure induced refractive index change; temperature compensation; transversal load sensor; Bragg gratings; Fiber gratings; Helium; Optical fiber sensors; Optical interferometry; Optical refraction; Optical sensors; Optical variables control; Refractive index; Temperature sensors; Chirped fiber Bragg grating; fiber sensor; local pressure; transversal load;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2009.2038491
