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江苏科技信息 ›› 2019, Vol. 36 ›› Issue (8): 27-29.doi: 10.1004-7530/2019-36-8-27

• 基础研究 • 上一篇    下一篇

小型坐标测量机空间尺寸测量示值误差校准方法与不确定度分析研究

邹进华,李坚青,李海星   

  1. 中国工程物理研究院计量测试中心,四川 绵阳 621000
  • 出版日期:2019-03-20 发布日期:2019-07-09
  • 作者简介:邹进华（1990— ）,女,云南曲靖人,助理工程师,学士;研究方向：计量测试。

Study on calibration method and uncertainty analysis of small-sized coordinate measuring machine’s spatial dimension measurement indication error

Jinhua Zou,Jianqing Li,Haixing Li   

  1. Measurement and Testing Center, China Institute of Engineering Physics, Mianyang 621000, China
  • Online:2019-03-20 Published:2019-07-09

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摘要：

针对空间尺寸测量范围小于350 mm的小型三坐标测量机,提出使用KOBA-step mini 310 mm型步距规进行空间尺寸测量示值误差校准,分析该校准方法与使用量块校准时的优势,针对德国ZIESS某型号三坐标测量机分别使用量块和KOBA-step mini 310 mm型步距规校准坐标测量机尺寸测量示值误差,分析测量不确定度。测量结果表明,使用步距规校准小型三坐标测量机空间尺寸测量示值误差相比使用量块更准确可靠。

关键词: 三坐标测量机, 尺寸测量示值误差, 校准, 步距规, 不确定度

Abstract:

Aiming at the small coordinate measuring machine whose measuring range of space dimension is less than 350 mm, this paper puts forward to calibrate the indication error of spatial dimension measurement with KOBA-step mini 310 mm step gauge, and analyzes the advantages of this calibration method and the correct time of using block. This paper analyzes the uncertainty of ZIESS coordinate measuring machine（CMM）using measuring block and KOBA-step mini 310 mm step gauge to calibrate the indicating error of dimension measurement for a certain type of CMM in Germany. The measurement results show that the step gauge is used to calibrate the spatial dimension of the small CMM. The error is more accurate and reliable than the usage block.

Key words: coordinate measuring machine, dimension measurement indication error, calibration, step gauge, uncertainty

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