Steering position sensor and method for using the same
US9000756B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2012 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Sep 28, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2086
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A rotation sensor assembly includes a rotated component rotatably coupled with a base. The rotation sensor assembly includes a transmitter and a receiver. The transmitter is coupled with the base or the rotated component. The transmitter generates a magnetic field including a sinusoidally time-varying dipole near-field corresponding to an excitation signal having a first phase value. The receiver is coupled with the other of the rotated component or the base. The receiver detects the magnetic field and generates a reception signal based on the magnetic field with a second phase value corresponding to a rotation angle of the rotated component relative to the base. The receiver is mechanically isolated from the transmitter. A rotation angle module is coupled with the transmitter. The rotation angle module, for instance a phase detector, measures the rotation angle of the rotated component based on the phase difference in the first and second phase values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.