Pulse generator with asymmetrical multi-pole magnet
US3969644A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 3, 1975 |
| Grant date | Jul 13, 1976 |
| Priority date | — |
| Expiry date | Feb 3, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N52/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pulse generator is comprised of an asymmetrical magnet assembly and a Hall sensor operative for generating an electrical signal upon the application of a magnetic field thereto. The Hall sensor and magnet assembly are mounted for relative movement for the generation of a train of electrical signals in response to relative displacement therebetween. The asymmetrical multi-pole magnets in the magnet assembly have a plurality of symmetrically spaced pole pairs with each pole pair including a magnetic pole of predominant polarity occupying a substantially greater area than the pole of opposite polarity. The predominant pole is sufficiently strong to provide a salient magnetic field of essentially single polarity. a magnetizing head also is provided for producing the asymmetrical pole character of the magnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.