A Novel Demodulation Method for Fiber Bragg Grating Sensor System Based on the LabView Software

Jun Su; Wei Qing Song; Hong Lin Chen; Xiu Feng Yang; Zheng Rong Tong; Ye Cao

doi:10.4028/www.scientific.net/AMR.403-408.2364

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 403-408A Novel Demodulation Method for Fiber Bragg...

A Novel Demodulation Method for Fiber Bragg Grating Sensor System Based on the LabView Software

Abstract:

The theory of fiber Bragg grating demodulation system based on unbalanced Mach-Zehnder (M-Z) interferometer is introduced. A novel design for demodulation of fiber Bragg grating sensor system based on the LabView Software is proposed and demonstrated. The system is obtained by making use of piezoelectric ceramic (PZT) technology achieving phase carrier modulation. Carrier signal is collected by data acquisition card(DAQ), and the phase modulation of signal is detected by discrete fourier transform(DFT). It realizes real-time demodulation for multiplexed sensing system.

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Periodical:

Advanced Materials Research (Volumes 403-408)

Pages:

2364-2367

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.403-408.2364

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Online since:

November 2011

Authors:

Jun Su, Wei Qing Song, Hong Lin Chen, Xiu Feng Yang, Zheng Rong Tong, Ye Cao

Keywords:

Interference Demodulation, LabVIEW, M-Z Interferometer, Phase Demodulate

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