Fabrication of front surface matched ultrasonic transducer array
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United States of America Patent
Stats
-
Aug 19, 1980
Grant Date -
N/A
app pub date -
Apr 16, 1979
filing date -
Apr 16, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A slab of piezoelectric ceramic plated on all surfaces is bonded to quarter wavelength impedance matching layers of glass and plastic. The top surface of the ceramic is slotted and parallel cuts orthogonal to the slots are made through the ceramic and into the glass to delineate an array of elements each with a signal electrode between slots and a wrap-around ground electrode. After making ground connections and flying lead connections to the signal electrodes, the matching layers are fully cut through from the front. A covering or wear plate is attached to the front surface and a relatively large mass of acoustic damping material covers the backs of the elements.
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Cited Art Landscape
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