電気音響変換のパラメータが複素領域で変化する場合の動作減衰量

概要

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As a suitable measure of the quality of the electro-acoustic transducers, the concept of Betriebsdampfung has been proposed. One of the authors defined effective power Betriebsdampfung based on a real power of the signal in place of the conventional Betriebsdampfung and showed that in both cases it is appropriate to design an electro-acoustic transducer so as to decrease its Betriebsdampfung. From this point of view, studies of the practical transducers were made. The investigation on this point has been insufficient. In this paper, we defined an operational parameter which is expressed as the ratio of the force factor to the geometrical mean of the electrical and the mechanical impedances. Analysis was made when this parameter varied in the complex domain under a complete matched condition. Several graphs were drawn which would be useful for the practical design of the electro-acoustic trasducers. Evaluation of the operational parameter on the practical transducers were also discussed.
社団法人日本音響学会の論文