Error compensation for coordinate measuring machines using a reference module
US11073382B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2015 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | Mar 19, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/34746
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of compensating errors in a coordinate measuring machine adapted for determination of at least one spatial coordinate of a measurement point on an object to be measured. The method comprises measuring a distance from the first reference element to the first structural component, wherein the measured distance indicates a displacement or a deformation of the first structural component, defining a dynamic model with a first set of state variables, the state variables being related to a set of physical properties of the reference module and representing an actual state of the reference module, deriving the actual state of the reference module by a calculation based on the dynamic model, and deducing compensation parameters based on the actual state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.