Torsion vibrator
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United States of America Patent
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-
Nov 29, 1988
Grant Date -
N/A
app pub date -
Sep 9, 1986
filing date -
Oct 24, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A plurality of block-shaped electrostrictive elements are arranged while polarization directions are coincident to the same circumferential direction, thereby an electrostrictive element to be grasped by metal members is constituted. These block-shaped electrostrictive elements have residual polarization in perpendicular direction to the thickness direction. A rectangular electrostrictive material is cut, thereby a number of block-shaped electrostrictive elements are obtained in one polarization treatment.
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