Methods and apparatus for magnetic sensor with integrated calibration mechanism
US9778327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2015 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Feb 2, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/0035
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus for magnetic sensors and integrated calibration. In an example arrangement, a system includes a magnetic sensor configured to output a signal corresponding to magnetic fields; a calibration trace disposed proximal to the magnetic sensor; a controlled current source coupled to the calibration trace and configured to output a current resulting in a magnetic field output from the calibration trace; and a comparator coupled to the output signal from the magnetic sensor and to an expected signal. In the example arrangement, the comparator outputs a signal indicating whether the output signal from the magnetic sensor corresponds to the expected signal. Methods are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.