Capacitive fringe field oil level sensor with integrated humidity and temperature sensing
US11674838B2 · kind B2 · utility
1Cited by
83References
24Claims
0Family size
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Key dates
| Filing date | Apr 3, 2020 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Aug 8, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/0007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor for measuring multiple properties of a fluid, such as oil, including level, temperature, water contamination, and dielectric where the sensing elements include two or more interdigitated electrodes, a capacitive relative humidity sensor, and a temperature sensing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.