Electromagnetic flow meter
US4409846A · kind A · utility
34Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 6, 1980 |
| Grant date | Oct 18, 1983 |
| Priority date | — |
| Expiry date | Aug 6, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/58
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electromagnetic flow meter with less power consumption in which an instantaneous pulsate current with alternately changing polarity at given intervals is fed into an exciting coil, and a velocity of flow of fluid is calculated by using a voltage produced between electrodes in accordance with a residual magnetic flux of a magnetic circuit and a flow velocity of the fluid when no exciting current flows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.