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Proceedings Paper

CCD fiber Bragg grating sensor demodulation system based on FPGA
Author(s): Q. Zhou; T. G. Ning; L. Pei; J. Li; X. D. Wen; Z. X. Li
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Paper Abstract

A CCD fiber Bragg grating sensor demodulation system based on FPGA is proposed. The system is divided into three units: spectral imaging unit, signal detection unit and signal acquisition and processing unit. The spectral imaging unit uses reflective imaging system, which has few aberration, small size, simple structure and low cost. In the signal detection unit, information of spectrum are accessed by CCD detector, the measurement of spectral line is converted into the measurement of the pixel position of spot, multi point can be simultaneously measured, so the system's reusability, stability and reliability are improved. In the signal acquisition and processing unit, drive circuit and signal acquisition and processing circuit are designed by programmable logic device FPGA, fully use of programmable and high real-time features, simplified system design, improved the system's real-time monitoring capabilities and demodulation speed.

Paper Details

Date Published: 9 November 2010
PDF: 5 pages
Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 785305 (9 November 2010); doi: 10.1117/12.868179
Show Author Affiliations
Q. Zhou, Beijing Jiaotong Univ. (China)
T. G. Ning, Beijing Jiaotong Univ. (China)
L. Pei, Beijing Jiaotong Univ. (China)
J. Li, Beijing Jiaotong Univ. (China)
X. D. Wen, Beijing Jiaotong Univ. (China)
Z. X. Li, Beijing Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 7853:
Advanced Sensor Systems and Applications IV
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan; Lin Zhang, Editor(s)

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