Method for determining residual error compensation parameters for a magnetoresistive angle sensor and method for reducing a residual angle error in a magnetoresistive angle sensor
US7288931B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2006 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | May 31, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/303
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a method of determining residual error compensation parameters for a magnetoresistive angle sensor providing a first measurement signal depending on a rotational angle the step of generating a plurality of value pairs for a plurality of rotational angle values is provided, wherein each value pair has a rotational angle value and an associated measurement signal value. The method further includes ascertaining a sinusoidal fit function the course of which is adapted to the plurality of value pairs. Finally, residual error compensation parameters can be generated from a difference between the ascertained sinusoidal fit function and the associated measurement signal values of the measurement signal for the plurality of rotational angle values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.