Electrode wiring harness for magnetic flowmeter
US4428241A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1981 |
| Grant date | Jan 31, 1984 |
| Priority date | — |
| Expiry date | Nov 6, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/58
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electrode wiring harness for an electromagnetic flowmeter which includes a non-magnetic metal spool having an insulating liner to define a flow conduit for the fluid to be metered, a pair of electrodes being mounted on the spool at diametrically-opposed positions along a transverse axis which is normal to the axis of the electromagnet assembly. The assembly is excited by a pulsatory wave to establish a magnetic field in the conduit that is intercepted by the fluid to induce a signal in the electrodes as a function of flow rate. The harness is constituted by a printed circuit board connected to the electrodes and disposed in a plane parallel to the electrode axis. The board has a conductive pattern thereon providing wiring from the electrodes to an external converter, the pattern including a loop coaxial with the electromagnet axis, whereby voltages induced therein by the magnetic field are balanced out.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.