レーザトラッキングシステムを用いたロボットのキャリブレーションに関する研究 第2報  多点位置決め法におけるパラメータ,測定点数,測定ポーズの選択に関する検討

書誌事項

タイトル別名
  • Study on Robot Calibration Using a Laser Tracking System (2nd Report). Discussion on How to Select Parameters, Number of Measurement and Pose of Measurement in Multiple Positioning Method.
  • レーザトラッキング システム オ モチイタ ロボット ノ キャリブレーション ニ カンスル ケンキュウ ダイ2ホウ タテン イチギメ ホウ ニ オケル パラメータ ソクテイ テンスウ ソクテイ ポーズ ノ センタク ニ カンスル ケントウ
  • Discussion on How to Select Parameters, Number of Measurement and Pose of Measurement in Multiple Positioning Method
  • 多点位置決め法におけるパラメータ,測定点数,測定ポーズの選択に関する検討

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抄録

A 6-DOF articulated robot (PUMA 560) is calibrated by using a laser tracking system according to the multiple positioning method and the effectiveness of this system is certified. A method which calibrates only angle parameters is newly proposed, since there is a possibility that true values of length parameters are directly measured by some other methods. The relationship between sensibility index and the number of measurement are simulated and it is inferred that 10 random measurements with fixed orientation is enough in case of calibrating only angle parameters and 20 random measurements with random orientation is enough in case of calibrating both angle and length parameters. The combination method which obtains length parameters by the joint axis estimating method and calibrates angle parameters by the multiple positioning method is experimentally developed. The accuracy of the combination method and that of the normal multiple positioning method are experimentally investigated. From the results, the effectiveness of the strategy of how to select parameters, number and pose (position and orientation) of measurement, which is mentioned above, is experimentally confirmed. The accuracy of 0.12mm is achieved in wide area and this value is better than already reported ones about PUMA 560.

収録刊行物

  • 精密工学会誌

    精密工学会誌 67 (4), 676-682, 2001

    公益社団法人 精密工学会

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参考文献 (17)*注記

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