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A π-shaped piezoelectric harvester which can be applied for using tension and vibration of cables in cable-stayed bridge and suspension bridge was proposed and the generating output characteristics were studied depending on the ceramic and the elastic body size. The harvester consists of a π shaped elastic body and a rectangular piezoelectric ceramic which is attached on the upper surface of the elastic...
In this study, simple ultrasonic motor of plate type stator was proposed. Stator of the proposed ultrasonic motor was composed of an elastic plate and ceramics. The elastic plate has one tip in the middle. The two ceramics were attached on the side surfaces of the elastic plate. The both polarization directions were directed to the upward outside directions. When two AC voltages which have basically...
This paper present generating characteristics of a hump shaped piezoelectric energy harvester. The harvester consists of a crooked elastic body plate and two ceramics which are attached on both inclined planes of the elastic body plates. This structure has a merit to lessen the stress of the ceramic because it can protect from direct pressure to the ceramic. And the harvester is easy to fabricate...
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