13 December 1983 Separation Of Vibration Modes Of Different Frequencies By Synchronized Holographic Interferometry
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Proceedings Volume 0370, Holographic Data Nondestructive Testing; (1983) https://doi.org/10.1117/12.934877
Event: Holographic Data Nondestructive Testing, 1982, Dubrovnik, Croatia
Interference holography with a pulsed ruby laser is used for analyzing the vibration pattern of an acoustic source. In our experiments the pattern was composed of two different vibrational modes. The pattern pertaining to a single mode can be obtained from the interpretation of a set of two holographic interferograms, taken under electronically controlled conditions. The interpretation methods that have been used were a moire-technique and an automated digital technique. Applications of these techniques in a few cases are discussed, and the effect of small timing errors in the electronic system on the results is determined.
© (1983) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
F. H. Groen, F. H. Groen, R. A. Rooth, R. A. Rooth, } "Separation Of Vibration Modes Of Different Frequencies By Synchronized Holographic Interferometry", Proc. SPIE 0370, Holographic Data Nondestructive Testing, (13 December 1983); doi: 10.1117/12.934877; https://doi.org/10.1117/12.934877

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