05446332 is referenced by 11 patents and cites 16 patents.

Several exemplary embodiments for an ultrasound transducer are suggested, in which the sound propagation in the vertical plane is narrow-angled and in the horizontal plane wide-angled by means of appropriate damping measures. The effect on the propagation characteristic is achieved by means of the embodiment in accordance with the invention of the oscillating diaphragm and/or the housing, as well as multiple disposition of piezo oscillators. Because of these measures, damping of the sound waves or the sensitivity of the sensor is approximately the same over the entire horizontal angle up to almost 180.degree..

Title
Ultrasonic transducer
Application Number
7/910031
Publication Number
5446332
Application Date
July 28, 1992
Publication Date
August 29, 1995
Inventor
Michael Fischer
Kampfelbach
DE
Martin Noll
Nentershausen
DE
Franz Pachner
Ubstadt
DE
Peter Knoll
Ettlingen
DE
Peter Rapps
Karlsruhe
DE
Agent
Frishauf Holtz Goodman & Woodward
Assignee
Robert Bosch
DE
IPC
H01L 41/08
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