Digital fluid analyzer using capacitive sensing
US4675596A · kind A · utility
16Cited by
7References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1984 |
| Grant date | Jun 23, 1987 |
| Priority date | — |
| Expiry date | Sep 10, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/221
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for determining the dielectric constant of a fluid as a measure of possible contaminants therein. A reference fluid sample having a known dielectric constant is first placed in a capacitive dielectric sensor and then the fluid to be analyzed is placed in the sensor. By comparing the measured values, an indication is provided of the degree of contamination of the analyzed fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.