Torque sensor
US11035745B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 26, 2019 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Jan 2, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/0076
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A torque sensor includes: a torsion bar coaxially connecting a first shaft and a second shaft; a multipole magnet; a pair of magnetic yokes; and a magnetic sensor capable of detecting a density of magnetic flux formed by the pair of the magnetic yokes and having an inner magnetosensitive surface facing inward in a radial direction and an outer magnetosensitive surface facing outward in the radial direction when viewed along a central axis of the torsion bar. The torque sensor includes: a magnetic flux guiding member capable of magnetically coupling the magnetic yoke and the outer magnetosensitive surface of the magnetic sensor; and a water blocking portion capable of housing the magnetic sensor and the magnetic flux guiding member to restrict the magnetic sensor from coming into contact with water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.