A novel Fiber Bragg Grating sensor analyzer based on FPGA and DSP platform
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.
FBG FPGA Wavelength demodulation DSP Analyzer
Binghui Zheng Qilong Kang
Department of Automation School of Information Science & Technology Xiamen University, China Department of Materials Science and Engineering School of materials Xiamen University, China
国际会议
杭州
英文
889-892
2012-10-28（万方平台首次上网日期，不代表论文的发表时间）