Rotation angle detecting device and method of correcting temperature characteristic of the same
US7583078B2 · kind B2 · utility
1Cited by
4References
2Claims
0Family size
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Key dates
| Filing date | Nov 29, 2006 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Oct 5, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D3/022
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of correcting temperature characteristic of a rotation angle detecting device that includes a permanent magnet, a magnetic core, a Hall element that rotates relative to the permanent magnet when a rotating object rotates to provide an output signal. The method includes a step of setting temperature correction values for correcting a temperature characteristic of the rotation angle detecting device according to magnetic flux density. The magnetic flux density is divided into a plurality of grade ranges and the temperature correction values are respectively set for the grade ranges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.