Piezoelectric actuator for use in micro engineering applications
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United States of America Patent
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Jun 4, 2013
Grant Date -
Jun 23, 2011
app pub date -
Dec 22, 2009
filing date -
Dec 22, 2009
priority date (Note) -
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Abstract
A piezoelectric actuator including a piezoelectric element and an elongate transducer mounted on the piezoelectric element. The transducer is formed from an elongate cylindrical member, and at least one helical slot is provided around the outer surface of the cylindrical member to enable coupling of resonance modes of the transducer when actuated by the piezoelectric element.
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