Flux concentrator for magnetic sensors
US4965517A · kind A · utility
11Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1989 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Aug 21, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wheel speed sensor comprises a Hall device disposed in a pocket in a cavity of a plastic housing. The cavity is filled with potting compound to capture and enclose the Hall device. Flux issued from a magnet that rotates with the wheel acts upon the Hall device and is concentrated on the Hall device by ferromagnetic fragments interspersed throughout the potting compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.