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Proceedings Article

The identification and repair of anomalous measurements in the measurement of big diameter based on rolling-wheel method

[+] Author Affiliations
Haiou Chen, Xiaofen Yu

Hefei Univ. of Technology (China)

Proc. SPIE 7997, Fourth International Seminar on Modern Cutting and Measurement Engineering, 79971G (May 26, 2011); doi:10.1117/12.887702
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From Conference Volume 7997

  • Fourth International Seminar on Modern Cutting and Measurement Engineering
  • Jiezhi Xin; Lianqing Zhu; Zhongyu Wang
  • Beijing, China | December 10, 2010

abstract

Rolling-wheel method is an effective way of measuring big diameter. After amending the temperature error and pressure error, the uncertainty of measurement can not be φ =5um/m stably because of the influence of skid. The traditional method of identifying skid loses sight of the influences of the unstable motor speed, the appearance form error and the eccentric of installation of the big axis and rolling wheel and so on, so the method has its limitation. In this paper, a new method of multiple identification and repair is introduced, namely n diameters are measured and Chauvenet standard is used for identifying the anomalous measurements one by one, and then the average value of the remaining data is used for repairing identified anomalous measurements, and the next round identification and repair is carried out until the accuracy requirement of the measurement is satisfied. The result of experiments indicates that the method can identify anomalous measurements whose offsets caused by the skid are greater than 0.2φ , and the uncertainty of measurement has improved substantially.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

Topics

Vision
Citation

Haiou Chen and Xiaofen Yu
"The identification and repair of anomalous measurements in the measurement of big diameter based on rolling-wheel method", Proc. SPIE 7997, Fourth International Seminar on Modern Cutting and Measurement Engineering, 79971G (May 26, 2011); doi:10.1117/12.887702; http://dx.doi.org/10.1117/12.887702


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