Position detecting apparatus for detecting a signal magnetic field indicative of a desired position
US4754221A · kind A · utility
15Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1985 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Dec 9, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/145
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
When applying a bias field in the direction of the easy axis of magnetization of a signal field-detecting MR element assembly, a leakage magnetic field of a magnetic recording medium adapted to generate a signal field is applied as the desired bias field without using any exclusive bias field application device. The magnetic recording medium and the thin-film MR element assembly are arranged in a manner that they make a predetermined angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.