Planar three-axis magnetometer
US9116198B2 · kind B2 · utility
8Cited by
28References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2013 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Jun 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/09
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multi-axis GMR or TGMR based magnetic field sensor system is disclosed. Preferably a three axis sensor system is provided for sensing magnetic flux along three mutually orthogonal axes, which can be used for magnetic compass or other magnetic field sensing applications. The sensing units are operative to sense X and Y axis magnetic flux signals in the device (XY) plane, while Z axis sensitivity is achieved by use of a continuous ring shaped or octagonal magnetic concentrator that is adapted to convert the Z axis magnetic flux signal into magnetic flux signals in the XY plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.