Electrical mercury manometer

Details Electrical mercury manometer Electrical mercury manometer

1991-07-22

1993-03-02

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

U-tube liquid column

73304R, G01L 902

Patent

active

051899175

ABSTRACT:
A device for monitoring pressure variations for mercury manometers including; a manometer tube with a column of mercury; at least two taps in the tube with one tap in the mercury column and the other above the column; a power supply interconnected between the taps; a resistance element extending between the taps in the mercury; and means for sensing the output voltage across the taps representative of the variations in the shunting effect on the resistance element of the mercury column as it rises and falls with pressure.

REFERENCES:
patent: 2219147 (1940-10-01), Binder et al.
patent: 2439770 (1948-04-01), Brown et al.
patent: 3470745 (1969-10-01), Frank
patent: 3577785 (1971-05-01), Guevrekian

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