摘要
针对复杂曲面零件加工中由触发式测头-关节臂激光扫描仪组成的多传感器测量系统,提出了六面体零件作为模板的全局标定方法,建立了基于单位四元数的全局标定数学模型,并用数学形态学方法在单位四元数球上进行聚类分析以确定最优的刚体变换矩阵。仿真和试验结果表明,该方法应用简单、鲁棒性好、精度高,适用于加工现场的在机测量系统标定。
Focusing on multisensor metrology system consisting of trigger and arm laser scanner in a complex surface part manufacturing process, a global calibration method was proposed based on hex- ahedron. The global calibration mathematical model based on unit quaternion method was construc- ted. Aiming to determine the optimal rigid transformation matrix, mathematical morphology was ap- plied to cluster analysis on unit quaternion sphere. The simulation and industrial examples demon- strate this method is convenient,accurate and be fit for on machine metrology system calibration.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2012年第12期1428-1432,共5页
China Mechanical Engineering
关键词
多传感器测量
全局标定
单位四元数
点云数据
数学形态学
multisensor metrology
global calibration
unit quaternion
point cloud
mathematical morphology
