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Proceedings Paper

Optical accelerometer design based on laser self-mixing interference
Author(s): Ying Yang; Xingfei Li; Ke Kou; Limin Zhang
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Paper Abstract

A novel optical accelerometer based on laser self-mixing effect is presented and experimentally demonstrated, which consists of a mass-loaded elastic-beam assembly and laser self-mixing interferometer. Under external acceleration, an inertial force is applied to the mass, flexible beams deflect from their equilibrium position. The deflection can be read out by the self-mixing interferometer. In order to reduce the impact of higher harmonic, wavelet analysis is introduced to remove singular points. Preliminary results indicate that the resolution is 0.19μg/Hz1/2 within a bandwidth of 100Hz. The optical accelerometer has the potential to achieve high-precision, compact accelerometers.

Paper Details

Date Published: 13 March 2015
PDF: 6 pages
Proc. SPIE 9369, Photonic Instrumentation Engineering II, 93690R (13 March 2015); doi: 10.1117/12.2076463
Show Author Affiliations
Ying Yang, Tianjin Univ. of Technology and Education (China)
Xingfei Li, Tianjin Univ. (China)
Ke Kou, Tianjin Univ. (China)
Limin Zhang, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 9369:
Photonic Instrumentation Engineering II
Yakov G. Soskind; Craig Olson, Editor(s)

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