Torque sensor system including an elliptically magnetized shaft
US7363827B2 · kind B2 · utility
16Cited by
72References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2005 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Apr 16, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L3/102
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A torque sensor includes a shaft and a magnetic sensor. The shaft may have at least one active region having an elliptical magnetization. The magnetic sensor may be configured to sense a magnetic field about the shaft, where the magnetic field is representative of a torque applied to the shaft. The elliptical magnetization may have a nonzero axial component directed along a center line axis of said shaft at zero torque.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.