Rotating asymmetric electrode for measuring characteristics of electrochemical cells
US4045725A · kind A · utility
2Cited by
5References
7Claims
0Family size
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Inventor
Key dates
| Filing date | Mar 8, 1976 |
| Grant date | Aug 30, 1977 |
| Priority date | — |
| Expiry date | Mar 8, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an electrochemical cell passing a constant current, an electrode rotating asymmetrically with respect to a fixed electrode produces an ac voltage, having a component at the rotational frequency, between the rotating and fixed electrodes because the interelectrode distance and dc solution resistance between the electrodes vary. When this electrode is used in an operating two electrode cell, e.g., a plating bath, the ac voltage may be used to map the spatial current distribution. Measurements of solution conductivity may also be made.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.