Sensor for measuring content levels in containers
US6186001A · kind A · utility
4Cited by
3References
16Claims
0Family size
Inventor
Key dates
| Filing date | Jun 18, 1999 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Jun 18, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/268
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A container level sensor is disclosed comprising an elongate strip member for mounting in a container in a generally upright orientation. The strip member has a measurable capacitance that changes as the level of material stored in the container changes. Two insulated conductive strips, held apart by magnetic forces or resilient spacers, can be used to form a capacitor, with the force of material in the container against the sensor pushing the strips together and thereby changing the capacitance. This change can be measured by a circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.