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.

• Periodical: Key Engineering Materials (Volumes 381-382)
• Pages: 133-136
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.381-382.133
• Online since: June 2008
• Authors: Y. Yang, S. Deng, Z. Hong
• Keywords: Dimension, Image Process, Measurement, Photothermal, Train-Wheel

References

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