Dielectric electro-mechanical transducer

Details Dielectric electro-mechanical transducer Dielectric electro-mechanical transducer

H - Electricity

02

N

310/1

H02N 1/00 (2006.01) G11B 5/588 (2006.01) H01L 41/053 (2006.01) H01L 41/09 (2006.01)

Patent

CA 1125343

ABSTRACT OF THE DISCLOSURE An electro-mechanica1 transducer having a dielectric plate which is coated on almost all its opposing major surfaces by electrodes and a base plate which is bonded to one of the major surfaces of the di- electric plate through the electrode and does not follow the shrinkage and expansion of the dielectric plate in the direction parallel to the major surface thereof when a voltage is applied to the dielectric plate through the electrode and base plate perpendicular thereto. In this case, the dielectric plate is made of such a ceramic which is in para- -electric phase or antiferro-electric phase at room temperature to avoid residual strain due to domain structure.

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