Apparatus and method for determining electrical conductivity of

Details Apparatus and method for determining electrical conductivity of Apparatus and method for determining electrical conductivity of

1979-07-09

1981-05-26

Krawczewicz, Stanley T.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

324 71R, G01R 2702

Patent

active

042700841

ABSTRACT:
An apparatus and method are disclosed for measuring the conductivity or ner of water ion clusters present in a moist air environment. A test chamber is utilized for operatively simultaneously holding a "dummy" reference cell and a "large" conductivity cell having substantially the same leakage resistance. The cells are designed to have "cell factor" ratios substantially different from each other. A D.C. power source with an in series vacuum-tube voltmeter is used to alternately measure the voltage drop of each cell under the similar variable ambient conditions. The conductivity or number of ion cluster present in the test environment is determined by a calculation using voltage compensated values and by graphical extrapolation.

REFERENCES:
patent: 2636927 (1953-04-01), Durham
patent: 3553576 (1971-01-01), Petit Jean et al.
patent: 3990066 (1976-12-01), Malmgren

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