DocumentCode :
2879046
Title :
A Novel Fiber Bragg Grating Sensor Analyzer Based on FPGA and DSP Platform
Author :
Binghui Zheng ; Qilong Kang
Author_Institution :
Dept. of Autom., Xiamen Univ., Xiamen, China
Volume :
2
fYear :
2012
fDate :
28-29 Oct. 2012
Firstpage :
311
Lastpage :
314
Abstract :
Fiber Bragg sensors become research focus of sensing technology, and have been widely used in many applications. This paper proposes a novel Fiber Bragg Grating sensor analyzer based on FPGA (Field Programmable Gate Array) and DSP (Digital Signal Processor) platform, which converts external parameter changes into wavelength shift in Fiber Bragg Gratings. the system can measure real-time temperature, strain, pressure, displacement and others through key steps including data acquisition, clutter Filtering, signal peak detection, Gaussian curve fitting and weighted wavelength calculation to carry out wavelength demodulation. Moreover, it is able to achieve fault diagnosis and positioning of the fiber link. Experimental results show that the system has advantages of low power consumption, good linearity, strong robustness, high precision and resolution on wavelength demodulation. And the system is still stable and reliable after a long test under different conditions.
Keywords :
Bragg gratings; clutter; curve fitting; data acquisition; demodulation; digital signal processing chips; displacement measurement; fault diagnosis; fibre optic sensors; field programmable gate arrays; pressure measurement; signal detection; strain measurement; temperature measurement; DSP; FPGA; Gaussian curve fitting; clutter filtering; data acquisition; digital signal processor; displacement measure; fault diagnosis; fiber Bragg grating sensor analyzer; fiber link positioning; field programmable gate array; power consumption; pressure measurement; real-time temperature measurement; signal peak detection; strain measurement; wavelength demodulation; wavelength shift; weighted wavelength calculation; Digital signal processing; Fiber gratings; Field programmable gate arrays; Optical fiber sensors; Temperature measurement; Wavelength measurement; Analyzer; DSP; FBG; FPGA; Wavelength demodulation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computational Intelligence and Design (ISCID), 2012 Fifth International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4673-2646-9
Type :
conf
DOI :
10.1109/ISCID.2012.229
Filename :
6406002
Link To Document :
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