Fluid conductivity measurement

Details Fluid conductivity measurement Fluid conductivity measurement

1977-07-14

1979-02-06

Tokar, M.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 30R, G01N 2742

Patent

active

041386396

ABSTRACT:
Fluid conductivity measuring apparatus employing fluid-coupled primary and secondary transformer windings where the primary transformer winding is energized by an oscillator. Accuracy in the apparatus is enhanced through the use therein of a feedback winding in the primary section of the transformer which couples with an output-level-control input in the oscillator to inhibit any tendency of the signal output level of the oscillator to change.

REFERENCES:
patent: 3054946 (1962-09-01), Esterson
patent: 3404336 (1968-10-01), Rosenthal

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