Single element ultrasound transducer with multiple driving circuits
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United States of America Patent
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Oct 29, 2013
Grant Date -
Feb 19, 2009
app pub date -
Aug 16, 2007
filing date -
Aug 16, 2007
priority date (Note) -
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Abstract
Apparatus for generating high intensity acoustic beams, the apparatus comprising: a piezoelectric transducer characterized by a plurality of harmonic resonant frequencies of vibration; and at least one driving circuit connected to the transducer that is controllable to excite at least two vibrations of the transducer at different harmonic vibration frequencies of the vibrator, which vibrations generate a high intensity acoustic beam for each of the harmonic frequencies.
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