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Proceedings Paper

Distributed FBG accelerometer based on signal reconstruction
Author(s): Zhaoxia Wu; Aijuan Song; Dongmei Yan; Zhiquan Li
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Paper Abstract

This paper presents a measuring system of vibration acceleration for acoustic emission wave using wavelet signal reconstruction technology. Continuous wave modulation frequency and wavelength division multiplex technology are adopted to realize distributed sensing system demodulation. Double FBGs acceleration probe with compressive stress and tensile stress applying simultaneity is designed. In this way, the influence of temperature noise on sensing signals is eliminated and measurement sensitivity and resolution are enhanced. Using wavelet signal processing methods not only completed the optical wavelength absolute code, improve imbalanced and nonlinear optical signal efficiently, but also reconstruct micro accelerate signal. This system has some advantages such as simple structure, high scan frequency, high resolution and good linearity.

Paper Details

Date Published: 9 October 2008
PDF: 6 pages
Proc. SPIE 7127, Seventh International Symposium on Instrumentation and Control Technology: Sensors and Instruments, Computer Simulation, and Artificial Intelligence, 712704 (9 October 2008); doi: 10.1117/12.806242
Show Author Affiliations
Zhaoxia Wu, Northeastern Univ. at Qinhuangdao (China)
Aijuan Song, Northeastern Univ. at Qinhuangdao (China)
Dongmei Yan, Northeastern Univ. at Qinhuangdao (China)
Zhiquan Li, Yanshan Univ. (China)


Published in SPIE Proceedings Vol. 7127:
Seventh International Symposium on Instrumentation and Control Technology: Sensors and Instruments, Computer Simulation, and Artificial Intelligence

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