Design of a novel vibration sensor based on Mach-Zehnder interferometer

Shuyue Zhao; Benli Yu; Li Pan; Di Jin; Yuanyuan Zhang; Xuqiang Wu

doi:10.1117/12.870212

9 November 2010 Design of a novel vibration sensor based on Mach-Zehnder interferometer

Shuyue Zhao, Benli Yu, Li Pan, Di Jin, Yuanyuan Zhang, Xuqiang Wu

Author Affiliations +

Proceedings Volume 7853, Advanced Sensor Systems and Applications IV; 78532Q (2010) https://doi.org/10.1117/12.870212
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

Because of a series of advantages such as high sensitivity, non-contact measurement, interferometric vibration sensors have attracted interest from a lot of researchers in vibration sensing field. In this paper, a novel Mach-Zehnder interferomtric vibration sensor which utilizes quadrature detection technology is proposed. In our system, non-polarized light source and 1/4 wave plate is used to obtain two in-phase and quadrature-phase (I/Q) signals. Compared with previous methods, this sensor system has a simple optical configuration and more reliable stability. Theoretical analysis indicates that this sensor can measure the vibration displacement accurately.

Citation Download Citation

Shuyue Zhao, Benli Yu, Li Pan, Di Jin, Yuanyuan Zhang, and Xuqiang Wu "Design of a novel vibration sensor based on Mach-Zehnder interferometer", Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78532Q (9 November 2010); https://doi.org/10.1117/12.870212

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