Magnetic flowmeter for measuring flow
US7963173B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2009 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Sep 15, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K13/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic flowmeter for measuring flow of a flow of process fluid, includes a flow tube arranged to receive the flow of process fluid therethrough. A magnetic drive coil proximate the flow tube is arranged to apply a magnetic field to the flow in response to a drive signal. At least one electrode is arranged to sense an electrical potential of the process fluid which related to the applied magnetic field and flow rate of the process fluid. Temperature measurement circuitry is coupled to the magnetic drive coil and is configured to provide a temperature output indicative of temperature of the drive coil based upon an electrical parameter of the drive coil. Flow measurement circuitry coupled to the at least one electrode is configured to provide a flow output based upon sensed electrical potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.