Magnetic flowmeter
US9429454B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2013 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Feb 23, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/60
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic flowmeter for measuring flow rate of a process fluid includes: a magnetic coil arranged to apply a magnetic field to the process fluid. A pair of electrodes electrically couple to the process fluid and are arranged to sense a voltage induced in the process fluid related to the applied magnetic field and the flow rate of the process fluid. A flow tube of a non-conductive material is arranged to receive a flow of the process fluid therethrough. The flow tube carries the magnetic coil and the pair of electrodes. Flow meter circuitry applies a current to the magnetic coil and receives the voltage sensed by the pair of electrodes. A magnetic field spreader is positioned proximate the magnetic coil and is arranged to spread the magnetic field emanating from the magnetic coil and direct the magnetic field into the flow tube. An exterior wrapper extends around the assembly and completes a magnetic circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.