WEN Xin1, FU Lu-hua1, ZHAO Yan1, ZHANG Heng2, WANG Zhong1
（1. State Key Laboratory of Precision Measuring Technology and Instrument, School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China； 2. National Institute of Metrology, Beijing 100013, China）
Abstract： Multi-sensor coordinate unification in dimensional metrology is used in order to get holistic, more accurate and reliable information about a workpiece based on several or multiple measurement values from one or more sensors. Because of the problem that standard ball is deficient as a standard artifact in the coordinate unification of high-precision composite measurement in two dimensions(2D), a new method is proposed in this paper which uses angle gauge blocks as standard artifacts to achieve coordinate unification between the image sensor and the tactile probe. By comparing the standard ball with the angle gauge block as a standard artifact, theoretical analysis and experimental results are given to prove that it is more precise and more convenient to use angle gauge blocks as standard artifacts to achieve coordinate unification of high-precision composite measurement in two dimensions.
Key words： high-precision composite measurement； image sensor； tactile probe； coordinate unification； angle gauge block
CLD number： TM930.1 Document code： A
Article ID： 1674-8042（2016）03-0205-09 doi： 10.3969/j.issn.1674-8042.2016.03.001
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高精度复合式测量中二维坐标统一方法研究
文 信1， 付鲁华1， 赵 炎1， 张 恒2， 王 仲1
（1．天津大学 精密测试技术与仪器国家重点实验室， 天津 300072； 2. 中国计量科学研究院， 北京 100013）
摘要：多测头坐标统一是复合式测量中的关键技术之一， 根据多个测头对某一物件的测量值从而得到更加全面可信的信息。 针对高精度复合式坐标测量中标准球作为多测头坐标统一标准器的不足， 本文利用角度量块作为标准器实现了影像测头和接触式测头的高精度坐标统一。 文中对比标准球和角度量块作为高精度复合测量中坐标统一标准器的优缺点， 理论分析和实验结都证明通过使用角度量块作为标准器精度更高也更方便， 且两测头在二维平面上能够实现高精度坐标统一。
关键词： 高精度复合式测量； 影像传感器； 接触式测头； 坐标统一； 角度量块
引用格式： WEN Xin, FU Lu-hua, ZHAO Yan, et al. Coordinate unification method of high-precision composite measurement in two dimensions. Journal of Measurement Science and Instrumentation, 2016, 7(3)： 205-213. ［doi： 10.3969／j.issn.1674-8042.2016.03.001］
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