Ultrasonic transducer for a proximity sensor
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United States of America Patent
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Sep 28, 2010
Grant Date -
Jul 30, 2009
app pub date -
Jan 29, 2008
filing date -
Jan 29, 2008
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Abstract
An ultrasonic transducer assembly for use in sensing the location of objects in proximity to the transducer. The ultrasonic transducer assembly includes a substrate member, a piezoceramic resonator plate supported on a planar surface of the substrate member adjacent to a peripheral edge of the substrate member, and a coupler connected to a surface of the resonator plate for acoustically coupling the resonator plate to a medium in contact with the coupler.
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