Quasi-self focusing high intensity and large power ultrasonic transducer
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United States of America Patent
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Oct 13, 2009
Grant Date -
May 15, 2008
app pub date -
Dec 27, 2004
filing date -
Dec 27, 2004
priority date (Note) -
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Abstract
A quasi-self focusing high strength large power ultrasonic transducer including a backing and a plurality of piezo-electric crystal sheets is disclosed. The backing has a double layer structure with an air cavity between the layers. At least four piezoelectric crystal sheets of the plurality of piezo-electric crystal sheets are adhered on an inside focusing face of the backing with a protective layer covering the surface of the sheets.
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