Method and system for calibrating a multiple-beam curvature/flatness sensor
US8310660B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2010 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | May 21, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B2210/46
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system for calibrating a multiple-beam curvature/flatness sensor in order to provide an accurate media curvature/flatness measurement. One or more flat media sheets are passed through a multiple-beam media curvature/flatness sensor and the timing data associated with the lead edge/trail edge crossing each beam associated with the multiple beam curvature/flatness sensor is used for the calibration of the curvature/flatness sensor system. The unknown variables in the media curvature/flatness equation which takes into consideration of the manufacture and assembly errors of the sensor as well as the media deflection due to gravity can be determined and eliminated in order to obtain a calibrated media curvature/flatness equation. The calibrated media curvature/flatness equation can further be applied in the curvature/flatness measurement in order to achieve accurate measurement results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.