An Investigation for Miniaturized, Light-Weight and High-Power Tonpilz Piezoelectric Transducers

概要

論文の詳細を見る
A number of Tonpilz piezoelectric transducers generally form a large matrix array. They may be required to be only light in weight, or both miniaturized and light in weight as well as to have high-power capability, according to their use. This paper describes the results obtained in an investigation of miniaturized, light-weight Tonpilz piezoelectric transducers with high-power capability. An electromechanical energy conversion system and mechanical vibration system for the transducer are theoretically investigated on transducer configuration, using a Martin equivalent circuit and distributed-constant equivalent mechanical circuits. For simplification of the theoretical analysis, the transducer was considered as being divided into a front-half section, from the head mass end to the vibration nodal section, and a rear-half section, from the vibration nodal section to the tail mass end. Figures of merits, FM_m for the front-half section and FM'_m for the rear-half section, are calculated to achieve lightening as well as high-power capability. In addition, figures of merits FM<ml> for the front-half section and FM'<ml> for the rear-half section are calculated to achieve miniaturization and lightening as well as high-power capability. To corroborate the theoretical results obtained, three kinds of Tonpilz transducers having the same 30 kHz resonant frequency but different configurations were built. Then, three kinds of 3 × 3 matrix arrays composed of nine Tonpilz transducers with the same configuration were fabricated. To evaluate the high-power characteristics for the arrays, a water tank to which high hydraulic pressure can be applied was adopted and a high-power test was carried out. As a result, it was found that transducers with high FM_m and FM'_m figures of merits are light in weight and exhibit high performance in high-power handling capability. Also, it was found that transducers with high FM_<ml> and FM'_<ml> figures of merits are miniaturized and light in weight and exhibit high performance in high-power handling capability.
社団法人電子情報通信学会の論文
2000-03-25

An Investigation for Miniaturized, Light-Weight and High-Power Tonpilz Piezoelectric Transducers

スポンサーリンク

概要

著者

関連論文

スポンサーリンク