Method of and apparatus for generating a pulse signal
US6384595B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1999 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Aug 26, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P3/488
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pulse signal generator comprising a magnetic element (1) able to cause a large Barkhausen jump; a detection member (2) for detecting a magnetic change in the magnetic element (1) to generate a pulse signal; and a pair of magnets (3, 4) provided on both sides of the magnetic element (1) such that their poles are opposed to each other; a magnetic circuit formation adjusting member (8, 9) attached to at least one of the magnets (3) so that when an object (5A) passes a pair of poles (3A, 4A) on one end of the magnets (3, 4), a magnetic field applied to the magnetic element changes to cause a large Barkhausen jump in the magnetic element (1), thus causing the detection member (2) to generate a pulse signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.