Method and arrangement for correction of evaluation of a switching threshold of a magnetic sensor
US6888345B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2004 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Sep 29, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/24485
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The method for correction of evaluation of a switching threshold of a magnetic sensor arrangement includes evaluating switching edges of a transmitter signal produced by a moving transmitter element and generating a signal output when the switching edges exceed or fall below a default threshold value. Individual threshold values are determined for each switching edge during the course of a measurement cycle to correct the default threshold value. This occurs by determining respective maximum and minimum values for each switching edge and then averaging them to obtain an average value for each switching edge. Then the average values are stored in a non-volatile memory as individual threshold values for subsequent correction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.