Method and apparatus for determining the direction and rate of a rotating element
US6604434B1 · kind B1 · utility
71Cited by
30References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2000 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Aug 13, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/066
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a device for measuring both the magnitude of rotation of a rotating magnetic field as well as the direction of rotation of a rotating magnetic field. The present invention may be used to measure the magnitude and direction of fluid flow by converting the kinetic energy of a moving fluid into a rotating magnetic field. At least two stationary sensors are placed in the magnetic field to detect the resulting changes in magnetic flux polarity occurring and provide therefrom a determination of the magnitude and direction of fluid flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.