Pressure transducer of the vibrating element type
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United States of America Patent
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-
Mar 13, 1984
Grant Date -
N/A
app pub date -
Nov 9, 1981
filing date -
Nov 12, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
44A pressure transducer which uses the principle of a variation in the resonance frequency of a membrane when it is subjected to a variable pressure. The transducer comprises a vibrating membrane which is fixed on a support member forming a cavity, and a cover member forming a second cavity. Excitation of the membrane is facilitated since it is made of a piezoelectric material and is provided with electrodes. An object of the invention is to provide a digital output pressure transducer which can be minaturized and which has low power consumption.
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