D.C. signal currents in capacitance gaging systems

Details D.C. signal currents in capacitance gaging systems D.C. signal currents in capacitance gaging systems

1976-05-10

1977-05-03

Swisher, S. Clement

Measuring and testing

Liquid level or depth gauge

Immersible electrode type

G01F 2326

Patent

active

040206912

ABSTRACT:
A signal transmission system responsive to A.C. signals has rectifier means arranged to receive the A.C. signals. The rectifier means are connected to first and second circuit paths so as to establish respective unidirectional currents of opposite polarity and dependent on the A.C. signals, in the two circuit paths. Integrating means are connected to at least one of the circuit paths to integrate the current therein to thereby produce an output signal dependent on the A.C. signal but independent of any stray A.C. pickup on either circuit path.

REFERENCES:
patent: 3916689 (1975-11-01), Donnaly
patent: 3935739 (1976-02-01), Ells

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