Electromagnetic flowmeter
US6256590A · kind A · utility
4Cited by
5References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 18, 1998 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Dec 18, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/60
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an electromagnetic flowmeter, the conventional derivation of flow velocity is corrected or replaced by an alternative calculation to take into account estimated non-linear dependence of field strength produced by the coil with applied coil current. This can be used to enable more accurate measurement, over a wider range of coil current. The improved accuracy allows the coil current to be adjusted to optimise power consumption; the adjustment of coil current in this manner is another aspect of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.