三维测头探测误差的评定准则及高精度评定方法研究  

Study on Assessing Criteria and High-Precision Evaluating Method of Detection Errors for 3D Probe

作　　者：杨新刚[1] 黄玉美[1] 李艳[1] 张立新[1] 

机构地区：[1]西安理工大学机械与精密仪器工程学院,陕西西安710048

出　　处：《计量学报》2008年第3期207-210,共4页Acta Metrologica Sinica

基　　金：教育部高等学校博士学科点专项科研基金(20050700007)

摘　　要：在对三维测头探测误差进行分析的基础上,参照球度误差的定义,给出了探测误差的4种评定准则及相应评定算法。对一组测量数据,用Powell寻优方法按最小包容区域准则对探测误差进行了评定,并与按最小二乘准则的评定结果进行了比较,分析及计算结果表明,采用最小包容区域准则与方法,消除了传统探测误差评定方法存在的原理误差,提高了检定准确度。Based on analysis of 3D probe detection errors and sphericity deviation definition, four kinds of assessing criteria and relative methods are presented to process measurement data. Using a group of given data, detection errors are calculated by Powell method according to minimum zone criterion and compared with results following least-squares criterion. Analysis and calculation show that theoretical error of traditional assessing methods can be eliminated by the method according to minimum zone criterion, and the calibration accuracy is improved.

关 键 词：计量学 Powell寻优方法 最小包容区域 探测误差 标定算法 

分 类 号：TB92[一般工业技术—计量学]