Hall effect contactless position sensor providing a direct proportion between a hall effect voltage and a distance to a magnetic target
US6060880A · kind A · utility
10Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1997 |
| Grant date | May 9, 2000 |
| Priority date | — |
| Expiry date | Dec 23, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S73/03
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A contactless position sensor includes a Hall effect cell and a magnetic circuit formed by a permanent magnet and two pole pieces. The magnet and the cell are juxtaposed between the pole pieces. The pole pieces have active surfaces opposite the cell with respect to the magnet. This layout makes it possible to directly obtain an output signal proportional to the distance separating the active surfaces from the target.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.