Coordinate correction method and coordinate measuring machine
US10429167B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2017 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Jan 25, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B21/047
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
As a former correction step, a coordinate correction method includes: a step of setting a measuring probe in a drive mechanism; a step of restraining a measurement tip; a step of acquiring a moving amount and a probe output; and a step of generating a former correction matrix including linear correction elements and non-linear correction elements. As a latter correction step, the coordinate correction method includes: a step of setting a measuring probe in a drive mechanism; a step of restraining a measurement tip; a step of acquiring a moving amount and a probe output; a step of generating an intermediate correction matrix including linear correction elements for correcting the probe output; and a step of correcting the probe output with a latter correction matrix. Consequently, correction can be simplified while allowing for correction of a non-linear error of the probe output supplied from the measuring probe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.