Fluid level sensor
US6571625B2 · kind B2 · utility
4Cited by
12References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 6, 2001 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Jun 6, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/243
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for sensing a level of a fluid, the device including a microcontroller and a probe coupled to the microcontroller. The microcontroller applies a given DC potential to the probe for a first period of time, measures a voltage associated with the level of the fluid to be sensed after the first period of time, and applies a reference DC potential to the probe for a second period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.