Rotation angle sensor
US8033031B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2008 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Sep 22, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A rotation angle sensor has a moveable sleeve (1) coupled with a rotating shaft, and a box (3) connected with the movable sleeve (1) rotatablely. An upper part of the moveable sleeve is equipped with a threaded ring (5). An inner side of the threaded ring (5) is equipped with a locking mechanism (6) which is matched with the rotating shaft tightly. The periphery of the threaded ring (5) is screwed with a fixed ring (7). The movable sleeve (1), the threaded ring (5) and the fixed ring (7) are all coaxial detachable ring structure comprising two or more arc modules. Teeth are distributed on an outer edge of the movable sleeve (1) along the circumferential direction. A reduction gear, which is engaged with the teeth and provided with multiple gears sets, is installed in the box (3). The reduction gear is fixed on a circuit board module, and a sensor module is fixed on the periphery of the reduction gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.