期刊
ADVANCED ROBOTICS
卷 28, 期 21, 页码 1419-1429出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/01691864.2014.955824
关键词
partial pose measurement; robot calibration; accuracy improvement; parameter identification
类别
资金
- ANR, France [ANR-2010-SEGI-003-02-COROUSSO]
- FEDER ROBOTEX, France
The paper deals with the geometric and elastostatic calibration of robotic manipulator using partial pose measurements, which do not provide the end-effector orientation. The main attention is paid to the efficiency improvement of identification procedure. In contrast to previous works, the developed calibration technique is based on the direct measurements only. To improve the identification accuracy, it is proposed to use several reference points for each manipulator configuration. This allows avoiding the problem of non-homogeneity of the least-square objective, which arises in the classical identification technique with the full pose information (position and orientation). Its efficiency is confirmed by the comparison analysis, which deals with the accuracy evaluation of different identification strategies. The obtained theoretical results have been successfully applied to the geometric and elastostatic calibration of a serial industrial robot employed in a machining work cell for aerospace industry.
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