Pressure transducer of the vibrating element type

Details Pressure transducer of the vibrating element type Pressure transducer of the vibrating element type

1981-11-09

1984-03-13

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Vibration type

G01L 908

Patent

active

044359861

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.

REFERENCES:
patent: 3745384 (1973-07-01), Blanchard

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