Study on laser diode self-mixing vibrometer with wide dynamic range

Ke Zhang; Benli Yu; Liang Lu

doi:10.1117/12.904803

22 November 2011 Study on laser diode self-mixing vibrometer with wide dynamic range

Ke Zhang, Benli Yu, Liang Lu

Proceedings Volume 8199, 2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications; 81990M (2011) https://doi.org/10.1117/12.904803
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

Abstract

In this paper, a laser diode vibrometer based on the self-mixing interference effect is proposed. A prototype of the laser diode self-mixing vibrometer has been assembled and optimized. The self-mixing signals have been observed in the laser diode self-mixing vibration measurement system when the external object (PZT) is driven by function generator. Experimental result is given and discussed. The self-mixing vibrometer could reach high resolution with a wide dynamic measurement range up to 22 KHz.

Citation Download Citation

Ke Zhang, Benli Yu, and Liang Lu "Study on laser diode self-mixing vibrometer with wide dynamic range", Proc. SPIE 8199, 2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 81990M (22 November 2011); https://doi.org/10.1117/12.904803

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