13 March 2015 Optical accelerometer design based on laser self-mixing interference
Author Affiliations +
Proceedings Volume 9369, Photonic Instrumentation Engineering II; 93690R (2015) https://doi.org/10.1117/12.2076463
Event: SPIE OPTO, 2015, San Francisco, California, United States
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.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ying Yang, Ying Yang, Xingfei Li, Xingfei Li, Ke Kou, Ke Kou, Limin Zhang, Limin Zhang, "Optical accelerometer design based on laser self-mixing interference", Proc. SPIE 9369, Photonic Instrumentation Engineering II, 93690R (13 March 2015); doi: 10.1117/12.2076463; https://doi.org/10.1117/12.2076463

Back to Top