Method and arrangement for correcting an angle-measuring and/or distance-measuring sensor system
US7620514B2 · kind B2 · utility
2Cited by
3References
4Claims
0Family size
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Key dates
| Filing date | Apr 27, 2005 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | May 31, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2449
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a method and a system for correcting an angle-measuring and/or distance-measuring sensor system, sinusoidal and cosinusoidal measurement signals (xi, yi) obtained by scanning a moved object of a measurement are evaluated. In order to correct the angle errors and/or phase errors of the measurement signal (xi, yi) a compensation process and a subsequent correction process are provided. Correction parameters (m1, m2) are obtained in the compensation process, and, in the correction process, a corrected pair of measured values (xi′, yi′) is determined form each pair of measured values (xi yi).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.