Dynamic pressure generator

Details Dynamic pressure generator Dynamic pressure generator

1983-04-01

1985-02-19

Swisher, S. Clement

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01L 2700

Patent

active

044997515

ABSTRACT:
A pressure generator for testing and calibrating pressure transducers has a body with an internal chamber. The chamber is filled with a liquid, statically pressurized. A piston is mounted in the chamber on a suspension member. A coil, mounted to move with the piston, is arranged in a magnetic field. The coil is supplied with varying current to cause the piston to oscillate or dither in the chamber. Such oscillation creates a dynamic pressure which is superimposed on the static pressure. Openings are provided in the body to receive the sensing end of one or more pressure transducers.

REFERENCES:
patent: 2539418 (1951-01-01), Grogan
patent: 3033027 (1962-05-01), Perls et al.
patent: 3208264 (1965-09-01), Melton
patent: 3264861 (1966-08-01), Miles
patent: 3590626 (1971-07-01), Hugli
patent: 3777546 (1973-12-01), Rollins
patent: 3782168 (1974-01-01), Wailes

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