Paper Title:
Online Measurement for Dimensions of Thermal Train Wheel
  Abstract

This paper presents a method for online measurement of the dimensions of thermal train wheel by one frame of photo-thermal image. A measurement system and its mathematics model is setup. The effect of the spectrum of laser source to restrain thermal background noise is analyzed, then, a special laser is selected. A weighting method of the gray value transform is added into the image process. The high temperature fields of a measured train-wheel are analyzed by use of limited element method. The experiment result shows that the measurement standard deviation of the thermal train-wheel rim is less than 0.55 mm.

  Info
Periodical
Key Engineering Materials (Volumes 381-382)
Edited by
Wei Gao, Yasuhiro Takaya, Yongsheng Gao and Michael Krystek
Pages
133-136
DOI
10.4028/www.scientific.net/KEM.381-382.133
Citation
Y. Yang, S. Deng, Z. Hong, "Online Measurement for Dimensions of Thermal Train Wheel", Key Engineering Materials, Vols. 381-382, pp. 133-136, 2008
Online since
June 2008
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$32.00
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