Flow meter having an electromagnetic sensor probe
US4459858A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 1, 1983 |
| Grant date | Jul 17, 1984 |
| Priority date | — |
| Expiry date | Jun 1, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/58
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flow meter for measuring the velocity of fluid flow in a conduit is disclosed, characterized in that an electromagnetic sensor probe is mounted within an opening contained in the conduit for generating electrical signals as a function of the velocity of fluid flow. The probe has a debris shedding head portion which protrudes into the interior of the conduit and includes an electromagnet for generating an electromagnetic field in the fluid, the axis of the field extending normal to the direction of fluid flow. The probe further includes a plurality of electrodes arranged beyond the poles of the electromagnet and adjacent the fluid for producing the electrical signals in response to the flow of fluid through the electromagnetic field. Signal processing apparatus is connected with the sensor probe for converting the electrical signals into a flow velocity output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.