Absolute Diameter Measurement of Thin Wire, Thread and Fibre

Objective

The ABSODIAM project aims at the creation of a prototype absolute measurement system for cylindrical objects (wire, glass fibre, plastic thread) of 0,005 to 0,2 mm in diameter. In parallel, reference material for this diameter range shall be developed. Finally, an in-process measurement diameter and roundness measurement sytem for such objects shall be prototyped.
Both systems, the absolute diameter measurement system and the in-process diameter measurement system, shall be based on the technique of diffraction pattern analysis. Existing systems based on this technique are not accurate enough. In the project, the accuracy shall be increased by ameliorating the hardware (laser) on one hand, and by refining the diffraction formula used for signal treatment on the other hand. The special condition for the in-process measurement system is that the object is moving through the system: the problems of the dynamic measurement mode have to be resolved. For the production of reference material, it is necessary to develop special wire drawing dies in order to meet the high surface quality and roundness requirements.
KEYWORDS (max 10):

Programme(s)

• FP4-SMT - Specific research and technological development programme in the field of standards, measurements and testing, 1994-1998

Topic(s)

• 0103 - Measurement and testing for the control of production

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

KJM Gesellschaft für Optoelektronische Messtechnik mbH

Address

8,Rimbacher Strasse 8
69509 Mörlenbach
Germany

Participants (5)

Bundesrepublik Deutschland

Germany

Address

100,Bundesallee
38116 Braunschweig

MONOCROM SL

Spain

Address

1,Pol. Ind. Les Roquetes 1-3
08800 Vilanova I La Geltru

PDT Diamond Tools BV

Netherlands

Address

22,Geenhovensedreef
5552 BD Valkenswaard

TVB Eupen PGmbH

Belgium

Address

93,Bellmerin
4700 Eupen

UNIVERSIDAD COMPLUTENSE DE MADRID

Spain

Address

Ciudad Universitaria
28040 Madrid