Design of a practical intensity modulated dynamic optical fiber accelerometer

Jia Nian Cao; Wei Xin Wang; Ya Bin Zhang; Jiang Zhi Fu

doi:10.1117/12.573707

14 February 2005 Design of a practical intensity modulated dynamic optical fiber accelerometer

Jia Nian Cao, Wei Xin Wang, Ya Bin Zhang, Jiang Zhi Fu

Proceedings Volume 5634, Advanced Sensor Systems and Applications II; (2005) https://doi.org/10.1117/12.573707
Event: Photonics Asia, 2004, Beijing, China

Abstract

An intensity modulated optical fiber accelerometer is designed. It can be applied in the real-time measurement of dynamic vibration acceleration. The theoretical analysis shows that the relation between the light intensity and displacement can be indicated by the same expression just with the difference in coefficient, though models of the fiber-optic intensity distribution at launching fiber end are different, such as Gaussian distribution, uniform distribution and those midst the upper two. Because of the simpleness of the expression, by means of specific linearization processing for the modulating function, a real-time and undistorted acceleration signal can be obtained. A particular compensation is adopted to avoid the effect due to the static drift of the original distance between the launching fiber end and the reflective surface.

Citation Download Citation

Jia Nian Cao, Wei Xin Wang, Ya Bin Zhang, and Jiang Zhi Fu "Design of a practical intensity modulated dynamic optical fiber accelerometer", Proc. SPIE 5634, Advanced Sensor Systems and Applications II, (14 February 2005); https://doi.org/10.1117/12.573707

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