Paper Title:
Uncertainty Evaluation Study of CMM Dynamic Measurement Based on Quasi Monte Carlo Method
  Abstract

In a contact measurement process, the coordinate measuring machine(CMM)probe will bring dynamic measurement error, therefore, dynamic calibration of the probe tip effective diameter should to be done at different probing speeds, and calibration uncertainty should to be given. There are some problems, slow convergence and unstable, using Monte Carlo (MC) method in uncertainty. In this paper, Quasi Monte Carlo (QMC) method is presented in the probe tip effective diameter uncertainty evaluation. At a certain positioning speed and distance approximation, probe tip effective diameter experimental tests are done with changing probing speeds. MC and QMC methods are used on uncertainty evaluation respectively, and the results are compared and analyzed. The simulation shows that QMC can be used on dynamic uncertainty evaluation of CMM probe tip. Compared with MC, QMC obtains a better stability and precision in small sample size and gains higher computing speed in large sample size.显示对应的拉丁字符的拼音 字典名词 assessment动词 assessevaluatepass judgment

  Info
Periodical
Edited by
Qiancheng Zhao
Pages
366-371
DOI
10.4028/www.scientific.net/AMM.103.366
Citation
W. H. Zhong, X. S. Ma, Y. D. Li, Y. Li, "Uncertainty Evaluation Study of CMM Dynamic Measurement Based on Quasi Monte Carlo Method", Applied Mechanics and Materials, Vol. 103, pp. 366-371, 2012
Online since
September 2011
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