A Holographic and Acoustical Investigation of a Plate Vibrating Underwater
NAVAL UNDERWATER SYSTEMS CENTER NEWPORT RI
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An elaborate experiment was undertaken to determine the interrelationships between dynamic surface deformation whose data were obtained through optical interferometric holography and the resulting radiated acoustic pressure pattern. Following analytical derivations and the development of a suitable algorithm, it was concluded that one hologram, by itself, does not contain sufficient information to make accurate predictions of acoustic patterns. Suggestions are made regarding follow-up investigations for the determination of the gradient of the surface deformation.
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