Online Measurement for Dimensions of Thermal Train Wheel

Abstract:

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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 et al., "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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Price:

$35.00

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