Demodulation Method of Distributed Fiber Bragg Grating Sensor Using Blazed Fiber Bragg Grating

2010 ◽  
Vol 37 (11) ◽  
pp. 2891-2895
Author(s):  
应朝福 Ying Chaofu ◽  
彭保进 Peng Baojin ◽  
任志君 Ren Zhijun ◽  
万旭 Wan Xu ◽  
朱银燕 Zhu Yinyan ◽  
...  
2011 ◽  
Vol 403-408 ◽  
pp. 2364-2367
Author(s):  
Jun Su ◽  
Wei Qing Song ◽  
Hong Lin Chen ◽  
Xiu Feng Yang ◽  
Zheng Rong Tong ◽  
...  

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.


2010 ◽  
Author(s):  
Q. Zhou ◽  
T. G. Ning ◽  
L. Pei ◽  
J. Li ◽  
X. D. Wen ◽  
...  

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