scholarly journals A demodulation method of high-speed fiber Bragg grating based on dispersion-compensating fiber

2015 ◽  
Vol 64 (23) ◽  
pp. 234207
Author(s):  
Li Zheng-Ying ◽  
Sun Wen-Feng ◽  
Li Zi-Mo ◽  
Wang Hong-Hai
Keyword(s):  
Fiber Bragg Grating ◽  
High Speed ◽  
Bragg Grating ◽  
Demodulation Method

scholarly journals 100 MHz high-speed strain monitor using fiber Bragg grating and optical filter applied for magnetostriction measurements of cobaltite at magnetic fields beyond 100 T

2018 ◽  
Vol 536 ◽  
pp. 847-849 ◽  
Author(s):  
Akihiko Ikeda ◽  
Toshihiro Nomura ◽  
Yasuhiro H. Matsuda ◽  
Shuntaro Tani ◽  
Yohei Kobayashi ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Fiber Bragg Grating ◽  
High Speed ◽  
Optical Filter ◽  
Bragg Grating

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 ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Fiber Bragg Grating Sensor ◽  
Bragg Grating ◽  
Bragg Grating Sensor ◽  
Demodulation Method

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

2011 ◽  
Vol 403-408 ◽  
pp. 2364-2367
Author(s):  
Jun Su ◽  
Wei Qing Song ◽  
Hong Lin Chen ◽  
Xiu Feng Yang ◽  
Zheng Rong Tong ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Fiber Bragg Grating Sensor ◽  
Sensor System ◽  
Bragg Grating ◽  
Labview Software ◽  
Sensing System ◽  
Data Acquisition Card ◽  
Bragg Grating Sensor ◽  
Novel Design ◽  
Demodulation Method

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.

Experiment and Research of Using Fiber Bragg Grating to Monitor the Dynamic Response of Asphalt Concrete

2011 ◽  
Vol 97-98 ◽  
pp. 301-304 ◽  
Author(s):  
Ke Li ◽  
Jian Guang Xie
Keyword(s):  
Dynamic Response ◽  
Fiber Bragg Grating ◽  
Asphalt Concrete ◽  
High Speed ◽  
Load Test ◽  
Bragg Grating ◽  
Static Load Test ◽  
Practical Applications ◽  
Fbg Sensor ◽  
On The Road

Based on the fiber Bragg grating sensing technology, a FBG sensor is designed to monitor the dynamic response of asphalt concrete; the sensitivity coefficient of FBG sensor is 1.28pm/με. Through the static load test, the correlation between strain and wavelength variation is 0.1797µε/pm, after second packaged and embedded in SMA-13 asphalt concrete. The instantaneous impact on the road of high-speed vehicles is simulated by using drop hammer. The results are shown that the Sensor can satisfy the requirements of practical applications and succeed in monitoring the dynamic response of asphalt concrete. The monitored signal can reflect the viscoelastic-plastic deformation law of asphalt concrete. The sensor can be used to monitor the dynamic response of asphalt concrete.

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