Cylindrical vibrator type pressure transducer

Measuring and testing – Fluid pressure gauge – Vibration type

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Details

73 32A, G01N 900

Patent

active

044958188

ABSTRACT:
A pressure gauge for determining the pressure applied to a cylindrical vibrator by measuring the resonance frequency of the vibrator. The vibrator comprises a thin-wall cylindrical portion, a thick wall cylindrical portion extending from one end of the thin wall cylindrical portion and a thick wall end portion joined to the end of the thin wall cylindrical portion. The thin wall cylindrical portion is installed within a cover, to which the thick wall end portion is securely attached. The inventive vibrator type pressure gauge produces greater accuracy and reliability while also being resistant to external vibrations and pressures.

REFERENCES:
patent: 3021711 (1962-02-01), Arvidson
patent: 3863505 (1975-02-01), Moffatt
patent: 4102209 (1978-07-01), Brahm
patent: 4178804 (1979-12-01), Potter
patent: 4297872 (1981-11-01), Ikeda

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