Magnetically driven resonant disc pressure transducer

Details Magnetically driven resonant disc pressure transducer Magnetically driven resonant disc pressure transducer

1993-01-25

1994-07-05

Chilcot, Jr., Richard E.

Measuring and testing

Fluid pressure gauge

Vibration type

310338, G01L 1100

Patent

active

053257197

ABSTRACT:
A vibrating disc transducer assembly suitable for accurately measuring high pressures utilizes a transducer having a vibratory disc that is preferably fabricated from silicon and excited to vibrate in the thickness-shear mode. The excitation is accomplished by placing the resonator in a magnetic field and passing an electric current through electrodes on opposite sides of the disc. The transducer is supported in a housing that communicates with the medium whose pressure is being measured.

REFERENCES:
patent: 3789666 (1974-02-01), Favre
patent: 4550610 (1985-11-01), EerNisse
patent: 4644804 (1987-02-01), Ramm et al.

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