A Unique Underwater Sound Transducer.
NORTH STAR RESEARCH INST MINNEAPOLIS MN
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The purpose of this project was to develop a sensitive wideband sonar detector utilizing the semiconductor piezojunction effect. The energy of a sonar signal incident on a flexible diaphram is converted to electrical energy by applying the acoustically produced signal to the base-emitter junction of a transistor. The output current of transistor is directly proportional to the force applied to the base-emitter junction and is linear over a significant portion of the force-output current characteristics. Author
- Electrical and Electronic Equipment
- Acoustic Detection and Detectors