Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/9777
Title: Information processing technique for time-domain addressing fiber Bragg grating sensor array
Authors: Yu, YL
Tam, H 
Chung, WH
Keywords: Fiber Bragg grating
Information processing
Sensor array
Time-domain addressing
Issue Date: 2001
Publisher: 上海科學技術出版社
Source: 中国激光 (Chinese journal of lasers), 2001, v. 28, no. 9, p. 845-848 How to cite?
Journal: 中国激光 (Chinese journal of lasers) 
Abstract: An electro-optical modulator was introduced to modulate the continuous light wave into pulses. An unbalance Michelson scanning interferometer was employed to transform the wavelength-shift signal reflected by the Bragg gratings to phase-shift signal. Signal coming from each sensor element was selected by controlling the on-off state of an electrical switch with a programmable delay signal generator and, therefore interrogation for time-domain addressing was achieved. Filtered with a band-pass filter, the measured can be judged by monitoring the phase-shift with a phase meter. Experiment demonstrated that the sensitivity of the 4-element sensor system, which was with a resolution of 6 nε, was 1.63 Deg/με.
URI: http://hdl.handle.net/10397/9777
ISSN: 0258-7025
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