Variable permeability steering torque sensor
US4796463A · kind A · utility
7Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1987 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Apr 6, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L3/105
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electromagnetic torque sensor arrangement comprising a pair of magnetic circuits differentially responsive to the twist of a rotary shaft under load. Each magnetic circuit comprises a stator assembly, and at least one deflectable element disposed therein on a pair of pins which experience relative rotation in relation to the twist of the shaft. The relative rotation causes deflection of the deflectable elements in relation to the twist, and the resulting variation in the permeability of the magnetic circuits is detected as a measure of the applied torque.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.