Method and apparatus for continuously determining the internal r

Details Method and apparatus for continuously determining the internal r Method and apparatus for continuously determining the internal r

1975-05-07

1976-07-13

Krawczewicz, Stanley T.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

324 30R, G01R 2702

Patent

active

039696693

ABSTRACT:
The invention relates to a method of continuously determining the internal resistance of an electrolysis cell and to an apparatus for carrying out this method. In the method according to the invention a weak alternating current (if) of frequency (f) is superimposed upon the electrolysis current, the active part (rf) of the impedance which the cell offers to this alternating current is measured, followed by extrapolation to the zero frequency of the function giving the active part (rf) of the impedance as a function of the frequency (f), (rf) thus inclining towards the internal resistance of the cell. The invention is applicable to any electrolysis cell and more particularly to cells for the igneous electrolysis of alumina.

REFERENCES:
patent: 3355661 (1967-11-01), Nonaka
patent: 3909709 (1975-09-01), Maxon

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