Abstract:Facing the urgent need for research of the overloaded multi-dimensional force measuring platform with large measuring force area, and to avoiding the heavy loading calibration after the development of multi-dimensional force sensor, a novel weak coupling self-calibration overloaded orthogonal parallel four dimensional force measuring platform is proposed based on the proposed self-calibration concept of the multi-dimensional force sensor. The mechanical decoupling force measuring branch with orthorhombic structure is developed. The decoupling measurement principle and self-calibration principle are analyzed and verified based on the rolling friction theory. The self-calibration parallel four dimensional force measuring platform and calibration loading system are designed and developed. The calibration experimental results show that the maximum measurement error of the force measuring platform is 0.62%, and the maximum coupling error is 0.56%, which prove the decoupling and self-calibration characteristic. The study lay the foundation of the practical application of the self-calibration parallel four dimensional force measuring platform, and provide a new way for the development of the large range overloaded parallel multi-dimensional force sensor.Key words:four dimensional force measuring platform;overloaded parallel;mechanical decoupling;self-calibration 0 前言 1
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