System and method of measuring fluid pressure force

Details System and method of measuring fluid pressure force System and method of measuring fluid pressure force

1977-02-14

1978-11-21

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Vibration type

73723, G01L 900

Patent

active

041260490

ABSTRACT:
A system and method is described for measuring fluid pressure force by immersing a solid mechanically resonant element into the pressure-bearing medium, exciting the solid mechanically resonant element to resonance, and observing changes in frequency with changes in fluid pressure. The advantage of the disclosed method lies in the high accuracy and resolution that the system permits when it employs for the solid mechanically resonant element a nearly perfect single crystal material since the method relies upon the bulk properties of the resonant material rather than upon other factors.

REFERENCES:
patent: 2745278 (1956-05-01), Roberts et al.
patent: 3198013 (1965-08-01), Erdely
patent: 3355949 (1967-12-01), Elwood et al.
patent: 3555880 (1971-01-01), Menius, Jr. et al.

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