Method and apparatus for measurement of fuel cell high frequency resistance in the presence of large undesirable signals
US7421356B2 · kind B2 · utility
2Cited by
3References
11Claims
0Family size
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Key dates
| Filing date | Sep 29, 2006 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Sep 29, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/389
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for a high frequency resistance measurement instrument with a reasonable dynamic range, which militates against saturation in the presence of one or more large undesirable signals, the high frequency measurement instrument capable of employing multiple alternating currents of differing frequencies to maintain measurement capability despite signal chain saturation in the presence of a large undesirable signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.