Magnetic flowmeter with coil ground path detection
US7921733B2 · kind B2 · utility
12Cited by
11References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2009 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Jul 9, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F25/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic flow meter includes a flowtube arranged to receive a flow of process fluid and a coil proximate the flowtube arranged to apply a magnetic field to the process fluid. A sense electrode is arranged to sense a voltage potential in the flowtube in response to the applied magnetic field. The sensed voltage is indicative of flow rate of process fluid through the flowtube. Diagnostic circuitry provides an output related to an electrical path between the coil and electrical ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.