Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1989-07-18
1990-12-18
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310364, 310366, H01L 4108
Patent
active
049788817
ABSTRACT:
A piezoelectric actuator of a lamination or stack type has a plurality of sheet-like electrostrictive elements and oppositely poled electrode layers provided on the major surfaces of the each element, respectively, each electrode layer being arranged so as to define an insulating zone on the one end portion of the associated major surface. An insulating gap is formed between the adjacent elements by the insulating zone(s) and is filled with an elastic material.
REFERENCES:
A Piezoceramic fine-movement control by Mills et al., Institute of Physics, J. Phys. E. Sci Instrum. vol. 14, 1981, pp. 295, 296.
Aoki Hideharu
Okuda Makoto
Wakita Naomasa
Budd Mark O.
NGK Spark Plug Co. Ltd.
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