Piezoelectric motor for use in magnetic fields
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United States of America Patent
Stats
-
Aug 14, 2001
Grant Date -
N/A
app pub date -
Mar 3, 1998
filing date -
Mar 6, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A motor for use in magnetic fields generated for medical imaging. The motor comprises a stator. The stator includes a piezoelectric material and is configured to generate vibrations when subjected to a voltage gradient. A rotor is arranged and configured so that vibrations generated in the stator will propel the rotor. A drive shaft is connected to the rotor. The rotor and drive shaft are formed from a material that has a magnetic susceptibility that is about the same as the magnetic susceptibility of water.
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