Method and apparatus for analyzing the electrode inpedance

Details Method and apparatus for analyzing the electrode inpedance Method and apparatus for analyzing the electrode inpedance

1987-03-16

1989-05-16

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

204 1T, 204404, 324712, 324 57SS, G01R 2700

Patent

active

048313246

ABSTRACT:
A method and apparatus for analyzing the electrode impedance, in which an a.c. voltage with its frequency varied at intervals is applied between a pair of measuring electrodes dipped in the sample liquid, the complex a.c. impedance between the electrodes is measured at each frequency, the maximum value among absolute values of imaginary part of the measured impedance values is detected as the electrode polarization resistance, and the solution resistance of the liquid is calculated by subtracting the detected maximum value from the real part of the impedance corresponding to the maximum imaginary part.

REFERENCES:
patent: 4087658 (1978-05-01), Hoppough
patent: 4238298 (1980-12-01), Tsuru et al.
patent: 4510437 (1985-04-01), Iskander
patent: 4626338 (1986-12-01), Kondo et al.
Ebersberger, "Impedance Matching Measurements with Sweep Generator Assembly Polyskop III SWOB." News From Rohde & Schwartz vol. 12, No. 53(1972) pp. 19-23.
Benadda et al, "A Measuring Device for the Determination of the Electric Permittivity of Materials in the Frequency Range 0.1-300 Mhz." J. Phys. E: Sci. Instrum vol. 15, No. 1 (Jan. 1982) pp. 32-36.

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