Noncontact interferometric measurement of vibration parameters under diffuse light reflection

Alexander V. Tavrov; I. V. Mishalevsky; Dmitry V. Ublinsky

doi:10.1117/12.294522

12 December 1997 Noncontact interferometric measurement of vibration parameters under diffuse light reflection

Alexander V. Tavrov, I. V. Mishalevsky, Dmitry V. Ublinsky

Proceedings Volume 3173, Ultrahigh- and High-Speed Photography and Image-based Motion Measurement; (1997) https://doi.org/10.1117/12.294522
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

The interferometric technique based on laser autodyne interferometer has been applied for the digital measurement of periodic micromovements of a sample. The measured oscillation parameters are: the amplitude, the frequency and the real time monitoring of the form of the micromovement. The technique does not critically to the adjustment of reflected beam on a sample and works with the diffuse light reflection. The frequency band is from several Hz up to 10⁵ Hz and amplitudes range is from 1 micrometer up to 1 mm. In case of harmonical oscillations the accuracy of measurement was obtained better than 2%. Theoretical and practical aspects of the performance measurement with laser autodyne are discussed.

Citation Download Citation

Alexander V. Tavrov, I. V. Mishalevsky, and Dmitry V. Ublinsky "Noncontact interferometric measurement of vibration parameters under diffuse light reflection", Proc. SPIE 3173, Ultrahigh- and High-Speed Photography and Image-based Motion Measurement, (12 December 1997); https://doi.org/10.1117/12.294522

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