Impedance measurement of a pH electrode
US8063644B2 · kind B2 · utility
11Cited by
8References
11Claims
0Family size
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Key dates
| Filing date | Aug 17, 2007 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Dec 24, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4165
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of measuring impedance of a pH electrode is provided. A test current is applied to the pH electrode for a time duration that is less than 50 percent of a time constant that is associated with electrical characteristics of the pH electrode. A voltage response of the pH electrode is measured when the test current is applied to the pH electrode. An impedance of the pH electrode is calculated as a function of the voltage response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.