平行双关节坐标测量机的测量模型及误差分析  

Measurement Model and Error Analysis of Double Parallel-joint Coordinate Measuring Machine

作　　者：杨睿嫦[1] 尚平[2] 王鑫[2] 

机构地区：[1]合肥工业大学仪器科学与光电工程学院,合肥市硕士研究生230009 [2]合肥工业大学

出　　处：《工具技术》2010年第8期86-90,共5页Tool Engineering

摘　　要：介绍了平行双关节坐标测量机的测量原理及结构,根据Denavit-Hartenberg方法建立了测量机的理想测量模型,并通过几何作图法对该模型进行了验证。在该测量模型的基础上,运用微分方法建立了测头中心坐标与各参数之间的误差模型,并通过计算机仿真验证了该误差模型的正确性。分析结果为进一步进行误差分离、补偿、标定奠定了基础。The measuring principle and the structure of double parallel-joint coordinate measuring machine were introduced in this paper. By using Denavit-Hartenberg analysis arithmetic,the ideal measurement model is established which is verified by geometrical construction. The error model based on the measurement model is established by using differential method.It was verified by computer simulation and provides a theoretic base for error separation,compensation and calibration.

关 键 词：坐标测量机 测量模型 误差模型 DH方法 

分 类 号：TH741.1[机械工程—光学工程]