Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1975-10-29
1977-03-29
Rolinec, R. V.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 64, G01N 2742
Patent
active
040151999
ABSTRACT:
A cell for the measurement of electrical conductivity of liquids by the principle of the four electrode measuring technique in which two current electrodes are spaced from one another and voltage electrodes provide a voltage tap-off. The voltage electrodes include at least two voltage electrodes associated with each current electrode and electrically connected in parallel. The at least two voltage electrodes are disposed along an equipotential line around a current electrode at positions on the equipotential line which exhibit low current density.
REFERENCES:
patent: 2793527 (1957-05-01), Turner, Jr. et al.
patent: 3134077 (1964-05-01), Hutchins et al.
patent: 3207981 (1965-09-01), Marsh et al.
patent: 3781660 (1973-12-01), Ludt
Rolinec R. V.
Tokar Michael J.
Zellweger Ltd.
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