Abstract
Abstract In this paper the vibratory holograms of piezoelectric elements and transducers under resonance state are investigated by means of the time-average method of laser holography. Also investigated are a series of dynamic vibratory characteristics calculated from holograms, such as vibratory type, amplitude, relations between amplitude and excitation voltage, relations between amplitude and frequencies, amplitude distribution on the vibratory face etc. Suggestions are made on using the holography to examine the effects of transducer design, the improvement of technology, property and unanimity transducers, the determinations of various vibratory models of piezoelectric ceramic elements and the evaluations of qualities of piezoelectric elements.
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