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Method of vibration analysis using holographic interferometry and heterodyne optical detection (1974)

Popa, D. ; Vlad, V. I. ; Maurer, J.

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Publication Date: 2011-08-16

Description: A method of studying thin plate vibrations with the aid of a laser beam is discussed. Through a suitable combination of time-average holographic interferometry, real-time holographic interferometry, and heterodyne optical detection, it is possible to obtain complete information on the vibration parameters of modes, amplitudes, frequencies, and phases. The method has the advantage of three dimensional global observation, noncontact, and high precision measurements.

Keywords: INSTRUMENTATION AND PHOTOGRAPHY

Type: The 4th Natl. Conf. on Acoustics Vol. 2, B (NASA-TT-F-15663); p 7-14

Format: text

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