Kinematic and geometric error compensation of a coordinate measuring machine
作者： N.A Barakat , M.A Elbestawi , A.D Spence
DOI: 10.1016/S0890-6955(99)00098-X
关键词:
摘要: In this paper, kinematic modelling of a Coordinate Measuring Machine (CMM) is carried out and the methodology followed in explained detail. The model simplified by certain assumptions which may result over-simplification model. Consequently, investigated enhanced adding relevant suitable geometric error terms. Different approaches are employed to evaluate coefficients. first approach, commercial ring gauge measured structured lattice work volume CMM. Resulting errors these measurements used conjunction with some statistical methods arrive at sets coefficients values. second approach based on measurement individual 21 terms CMM means laser interferometry. These another set A compensation strategy proposed tested using obtained. Volumetric Performance evaluated according ASME standards, before after compensation. Improvement volumetric performance demonstrated compared.
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