Modulating polarization voltage of amperometric sensors
US8518237B2 · kind B2 · utility
1Cited by
6References
6Claims
0Family size
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Key dates
| Filing date | Sep 14, 2009 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Feb 25, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/404
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The service life of amperometric electrochemical oxygen sensors is increased by operating the electrodes of such sensors at a polarization voltage suitable for measuring the oxygen content of samples only during calibration or when measuring such samples and thereafter modulating the polarization voltage to a lower voltage such that substantially no electrical current is produced by the electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.