Differential pressure transducer
US6484586B1 · kind B1 · utility
11Cited by
6References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2000 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Feb 14, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A differential pressure transducer has a measurement chamber which is divided by a membrane into first and second measurement spaces which can be exposed to first and second pressures whereby differential pressure causes deflection of the membrane from its neutral position. A deflection sensor measures the deflection of the membrane and produces a deflection signal. An electromagnet arrangement produces a magnetic force which compensates for the deflection force which is caused by the differential pressure. The coil current for producing the magnetic compensation force represents a measure of the differential pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.