Flux gate sensor with improved sense winding gating
US4646015A · kind A · utility
29Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 28, 1984 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Nov 28, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flux gate sensor having sense windings for providing an output proportional to the strength of an external magnetic field in which the sensor is placed. A gating circuit which is responsive to a pulse which is generated when the core of the sensor is driven into and out of saturation gates the output of the sense windings to a pair of filters which in turn provide an output proportional to the intensity of the external magnetic field. With two sense windings the outputs of the filters may be used to determine the direction of the magnetic field relative to the sensor and thereby be used as a compass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.