Method and apparatus for determining the internal pressure of a

Details Method and apparatus for determining the internal pressure of a Method and apparatus for determining the internal pressure of a

1995-05-04

1996-12-17

Williams, Hezron E.

Measuring and testing

Fluid pressure gauge

Vibration type

73 52, 73579, G01L 1100

Patent

active

055855679

ABSTRACT:
Apparatus (10) includes means (14) for exciting at least the fundamental radial circumferential mode of vibration (f.sub.1) and the first harmonic (f.sub.2) thereof, detection means (22) for detecting the vibration and analyzing means (12) for determining the internal pressure by reference to f.sub.1 and f.sub.2.

REFERENCES:
patent: 3802252 (1974-04-01), Hayward et al.
patent: 4399514 (1983-08-01), Hamasaki et al.
patent: 5144838 (1992-09-01), Tsuboi

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