Arrangement and method for the automatic correction of error-containing scanning signals of incremental position-measuring devices
US5956659A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1998 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Mar 25, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An arrangement as well as a method for the automatic correction of error-containing scanning signals, which contain defined deviations from the ideal signal shape, of incremental position measuring devices is disclosed, wherein an ideal signal shape is presupposed by a downstream arranged evaluation unit. In this case the scanning signals are supplied to a processor unit, and correcting values are determined by means of a correction algorithm which are converted in turn into appropriate control signals. The analog scanning signals as well as the control signals are supplied to a correction unit, which contains several adjustment possibilities for correcting the error-containing scanning signals by the control signals acting on them. The processor unit as well as the correction unit are arranged in such a way that scanning signals, which have already passed through the correction unit, are present at the input side of the processor unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.