Layered-type piezoelectric element and method for producing the

Details Layered-type piezoelectric element and method for producing the Layered-type piezoelectric element and method for producing the

1995-12-27

1999-06-15

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310332, 310366, 347 72, H01L 4108

Patent

active

059125268

ABSTRACT:
A stacked body is formed from alternating piezoelectric ceramic layers 40 and internal electrode layers 42, 44. At least a central portion of a stacked body is divided into a plurality of actuator portions 46a, 46b, and 46c by elongated holes 52 opened in the stacked direction. The portions are supported at their end portions by a piezoelectric non-active portion 48. Desired actuator portions can be driven independently by selectively applying voltage to the electrodes corresponding to the actuator portions 46a, 46b, and 46c.

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