Generalized Geometric Error Correction in Coordinate Measurement

Abstract: Software compensation of geometric errors in coordinate measuring is hot subject beause it results the descrease of manufturing costs. The papergives a summary of the results and achivements of earlier works on the subject. In order to improve these results a methode is adapted to capture simultaneously the new coordinate frames in order use exact transformation values at discrete points of the measuring volume. The interpolation techniques used have the draw back that they could not maintain the orthogonality of the rotational part of the transformation matrices. The paper gives a technique based quaternions which avoid this problem andleads to better results.