Abstract
It is necessary to study the transferring effect of every error resource of a coordinate measuring system. This paper gives quantitative analysis of the transferring effects of parameter errors in a non-perpendicular coordinate measuring system. A typical articulation-type coordinate measuring system is analyzed which combines six angle encoders and three measuring arms and one stylus. The measuring equation of this system is given and the error-transferring model is derived from this equation. As the systematic errors of the parameters of the system are given beforehand, simulated computation is carried out on the error-transferring model of this articulation-type coordinate measuring system. The effects of parameter errors on the position of the stylus of the coordinate measuring system are clearly seen from the simulation results. These make the software error correction of the coordinate measuring system possible and will also provide the base for error correction of the system.
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