Microdrive apparatus
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United States of America Patent
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-
Jul 20, 1993
Issued Date -
N/A
app pub date -
May 3, 1991
filing date -
Dec 28, 1988
priority date (Note) -
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status (Latency Note)
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Abstract
A microdrive apparatus of a micromanipulator according to the present invention is such that a piezoelectric/electrostrictive element having an inertial member mounted at its tip is attached to a moving member supported on a frictional surface of a support member, and a miniature instrument for manipulation is attached to the moving member. By applying an electric field to the piezoelectric/electrostrictive element, the miniature instrument for manipulation is controlled for fine movement by utilizing this kinetic energy, the inertial effect of the inertial member, and the reaction force acting upon the moving member. In addition, the miniature instrument for manipulation can be controlled to assume a predetermined position and predetermined attitude by a micropositioning device having an articulated portion in which an inertial member is attached to an arm via a piezoelectric/electrostrictive element.
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