Method of measuring the straightness of an ultra-long railway using laser technology

Jianmin Zhou; Hongyan Yin; Kai Xu

doi:10.1117/12.819694

31 December 2008 Method of measuring the straightness of an ultra-long railway using laser technology

Jianmin Zhou, Hongyan Yin, Kai Xu

Proceedings Volume 7130, Fourth International Symposium on Precision Mechanical Measurements; 71303R (2008) https://doi.org/10.1117/12.819694
Event: Fourth International Symposium on Precision Mechanical Measurements, 2008, Anhui, China

Abstract

Because of the improvement of carrying capability and speed, the railway train has a higher and higher demand for the rail's straightness in high speed and heavy load. The ideal long-distance railway should be regarded as an ideal circular arc guide-rail. Several data transferring sites along the ideal datum line while using linear datum to demarcate the railway are introduced, and adopting non-diffraction laser beam as collimating datum between each site is also used. PSD is used as photoelectric receiving detector, and a non- diffraction beam is used to improve the collimating precision.

Citation Download Citation

Jianmin Zhou, Hongyan Yin, and Kai Xu "Method of measuring the straightness of an ultra-long railway using laser technology", Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71303R (31 December 2008); https://doi.org/10.1117/12.819694

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