Title :
A New Optical Fiber Bragg Grating Dynamic Signal Demodulation Method Based on Work-Point Controlling
Author :
Zhizhong, Li ; Haibin, Zhao ; Qiuliang, Shi ; Yusheng, Cheng ; Qijun, Liu
Author_Institution :
Underwater Acoust. Center, Navy Submarine Acad., Qingdao, China
fDate :
July 31 2012-Aug. 2 2012
Abstract :
Signal demodulation is a key technique for the fiber grating sensor. A new fiber Bragg grating dynamic signal demodulation method based on work-point controlling is present in the paper. The operation principle of the new method and the signal processing scheme of the work-point controlling are expounded systematically. The experiment measurement device is built using the tunable narrow-band laser, which has achieved signal demodulation with high precision. The influence of temperature drift on the measurement results is eliminated with work-point controlling scheme and the ability of dynamic signal detection capability of the fiber grating is greatly improved.
Keywords :
Bragg gratings; demodulation; fibre optic sensors; measurement by laser beam; optical control; optical modulation; signal detection; dynamic signal demodulation; dynamic signal detection; fiber grating sensor; measurement device; optical fiber Bragg grating; signal processing scheme; temperature drift; tunable narrow-band laser; work-point controlling; Demodulation; Fiber gratings; Fiber lasers; Optical fiber sensors; Optical fibers; Temperature measurement; Dynamic Signal Demodulation; Fiber Grating; Fiber Optics; Work-point Controlling;
Conference_Titel :
Digital Manufacturing and Automation (ICDMA), 2012 Third International Conference on
Conference_Location :
GuiLin
Print_ISBN :
978-1-4673-2217-1
DOI :
10.1109/ICDMA.2012.25
