| 摘要 |
The proposed piezoelectric mechanical-electric transducer contains a cylindrical piezoelectric element and two matching amplifiers. At the inside surface of the piezoelectric element, a cylindrical electrode is arranged. At the outside surface, two semi-cylindrical electrodes are arranged. At the end surfaces, ring electrodes are arranged. The input and the output of the first amplifier are accordingly connected to the first and the second outside electrodes. The input and the output of the second amplifier are accordingly connected to the first and the second ring electrodes. The internal electrode is connected to the common point of the transducer circuit.
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