多位法误差分离技术的统一方程及可操作性  

Universal Equation and Operationability for Multi-Position Error Separation Technique

作　　者：洪迈生[1] 蔡萍[2] 

机构地区：[1]上海交通大学机械工程学院,上海200030 [2]上海交通大学电子信息工程学院,上海200030

出　　处：《纳米技术与精密工程》2004年第1期59-64,共6页Nanotechnology and Precision Engineering

基　　金：国家自然科学基金资助项目 (50 0 750 56)

摘　　要：提出了多位法误差分离技术读数方程 ,可统一现行的多步法和多点法 .按照对该方程中两类不同误差映射矩阵的处理方式可得到通用的分离操作模式———“首次分离操作”和“二次分离操作” .指出 ,描述了对该方程加权结果的权函数是考察“测量 分离”系统参数设计是否合理的重要手段 .以圆度误差的等角多步法为例 ,分析了其可操作性和实用性 .结果表明 ,等角多步法的分离求解宜用时域法而非频域法 .The measurement equation for multi position error separation technique is put forward, and the equation is universal for all the current multi step and multi point methods. The universal separation mode,“the first separating operation” together with“the second separating operation” is presented according to the way related to two different error mapping matrices. It is pointed out that the weight function is of consequence to inspect the reasonability of the designated parameter of “measurement separation system”. The operationability and applicability are analyzed via an example of multi step method in roundness error separation. It is concluded that error separating operation with equi angle multi step method is more applicable in time domain than in frequency domain.

关 键 词：多位法 权函数 误差分离 分离操作 圆度 

分 类 号：TG839[金属学及工艺—公差测量技术]