Performance evaluation of self-mixing interferometer with the ceramic type piezoelectric accelerometers

Author:

Berberoğlu Halil1,Tiken Mehmet23,Eseller Kemal Efe4,Orhan Elif5,Candan Can5

Affiliation:

1. Physics Department, Ankara Haci Bayram Veli University, Polatli Faculty of Science and Letters , 06900 Polatli , Ankara , Turkey

2. Avionic Department, 5th Main Maintenance Factory Directorate , Ankara , Turkey

3. Department of Advanced Technology, Gazi University, Graduate School of Natural and Applied Science , Ankara , Turkey

4. Department of Electrical – Electronics Engineering, Atilim University , Ankara , Turkey

5. Physics Department, Science Faculty, Gazi University , Ankara , Turkey

Abstract

Abstract In this article, reconstructed displacement from the self-mixing signal is compared with the displacement obtained by the ceramic shear mode design piezoelectric accelerometer. Piezoelectric accelerometers are widely accepted due to the low output noise and wide frequency range, but nevertheless it is not contact-free. Self-mixing interferometric signals due to the vibrating target on which an accelerometer is attached are acquired by an external silicon type photodetector. The laser light hits directly the accelerometer as a target which is driven by the sum of two different sinusoidal frequencies of 150 and 300 Hz with different voltage levels.

Publisher

Walter de Gruyter GmbH

Subject

General Physics and Astronomy

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