 |
| Department 5.3 |
|
Coordinate Metrology
|
|
|
|
Artefacts and methods to establish traceability of large coordinate measuring
machines
(EC SM&T funded project MESTRAL)
Within the framework of this project, L-shaped ball plate reference objects with
metrological properties more or less identical to those of conventional ball
plates are developed. The new reference objects are dismountable so that even
plates of large dimensions (up to 3m x 1,5 m) can be transported and handled
without difficulties. Additionally new dismountable linear reference objects
like ball bars are developed (length up to 6 m), which are also evaluated for
the straigthness transversal to the linear (rod) axis. The main construction
material of the new reference objects are carbon fibre reinforced plastics
(CFRP). These reference objects are put into action in a series of pilot
measurements on large coordinate measuring machines of different types and from
different manufacturers in order to determine large CMM error functions.
|
|
L-shaped 2D reference object at Skoda Auto
facilities, Czech Republic |
|
|
Linear reference object (1D alignment with additional straightness
information)
at Skoda Auto facilities, Czech Republic |
supported by: EG Standards Measurement &
Testing Programme
Projectpartner: Brown & Sharpe DEA (Italy), Carl Zeiss
(Germany),Trimek (Spain), Volkswagen Navarra (Spain), Czech Metrologial Institute (Czech Republic),
IMGC (Italy)
Publications about this project: Publications
1999 Publications 2000
|
