Ultrasonic transducer comprising at least one row of ultrasonic elements
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United States of America Patent
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-
Jan 26, 1993
Grant Date -
N/A
app pub date -
Nov 19, 1990
filing date -
Jul 13, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An array comprising at least one row of ultrasonic elements when energized generates a pressure pattern having side lobes when viewed in the lateral direction. Those side lobes give rise to undesirable grating lobes. The side lobes in both transverse and lateral direction can be suppressed by having identical and identically arranged ultrasonic elements (14) the width of which, viewed in the lateral direction, is greater than the pitch of the consecutive ultrasonic elements in the row.
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