棒状圧電変換子における簡単な反電界補正

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概要

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• This is to propose a simple method of correction for the depolarization in the determination of electromechanical constants of a piezoelectric bar transducer. The sound propagation along a piezoelectric rod is one-dimensionally analyzed on the assumption of sinusoidal strain distribution within the bar wave approximation. The flux leakage of depolarizing field is taken into account with the introduction of a degree of depolarization which is related to the appropriate depolarizing factor. The formulation is simple and intuitive. The results agree with those of the previous approximate calculation based on the consideration of space and surface charges distribution.

• 社団法人日本音響学会の論文

著者

• 池田 拓郎

  Department Of Applied Physics Faculty Of Engineering Tohoku University

関連論文

• 棒状圧電変換子における簡単な反電界補正

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