Torque detector
US6539816B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Feb 23, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L3/104
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An object of the present invention is to provide a compact torque detector. The present invention solving the object has a conversion member 23 provided on the outer circumferences of an input shaft 20 and an output shaft 21 to convert the amount of relative rotation of the input and output shafts to a displacement in the axial direction; an annular-shaped ring member 26 secured on the outer circumference of the conversion member 23 and made up of a magnet; and a plurality of magnetically sensitive devices 27 arranged at intervals around the ring member 26 and facing the ring member. The magnetically sensitive device 27 detects the amount of travel of the ring member 26 in the axial direction and supplying the detected amount as a voltage signal to a controller C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.