Electronic liquid level gauge
US4444051A · kind A · utility
17Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1982 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Mar 12, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/263
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic liquid level gauge for measuring the level of a liquid contained in a vessel by employing an electrode pair immersed in the liquid. The electrode pair is associated with an oscillator which generates pulses of a repetition period directly proportional to the electrostatic capacity of the electrode pair. A counter is provided which is reset by an oscillator pulse and starts counting reference pulses of a predetermined repetition rate with a predetermined time delay relative to the occurrence of the oscillator pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.