Angular position sensor
US6960973B2 · kind B2 · utility
4Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2003 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Jul 20, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D9/105
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An angular position sensor employs a pair of magnets that are disposed on a rotating cylinder at opposite ends of a diameter of the cylinder. A hall-effect flux sensor is fixed within the cylinder and offset from a line of geometric and magnetic symmetry between the magnets. The offset sensor detects a linear change in flux of the magnets as the magnets rotate with the cylinder over a predetermined angular distance and thereby determines the angular position of the cylinder. The offset of the sensor is adjusted to reduce the sensing error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.