Method for automatically correcting the systematic errors in measurement and manufacturing machines and apparatus for implementing the method
US6985792B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 2002 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Aug 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/49181
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for automatically correcting the systematic errors in measurement machines and in manufacturing machines, in particular in machine tools, characterized by comprising the following operative steps in succession: identifying the parametric mathematical model of the machine, initially assigning, to the parameters of said parametric mathematical model, numerical values considered to be close to the effective values, to obtain a provisional mathematical model of the machine, effecting a plurality of mutually independent distance measurements within the working field of the machine, determining the differences between the experimentally measured distance values and the corresponding distance values deduced from said provisional mathematical model, to define the corresponding provisional inaccuracy index of the machine, varying said parameters in the sense of improving the predefined provisional inaccuracy index, to hence obtain a new provisional mathematical model of the machine which is closer to its definitive mathematical model, proceeding iteratively with new determinations of the difference between these and the corresponding values deduced from the mathematical model until…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.