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Proceedings Paper

Method of measuring the straightness of an ultra-long railway using laser technology
Author(s): Jianmin Zhou; Hongyan Yin; Kai Xu
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Paper 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.

Paper Details

Date Published: 31 December 2008
PDF: 7 pages
Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71303R (31 December 2008); doi: 10.1117/12.819694
Show Author Affiliations
Jianmin Zhou, East China Jiaotong Univ. (China)
Hongyan Yin, East China Jiaotong Univ. (China)
Kai Xu, East China Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 7130:
Fourth International Symposium on Precision Mechanical Measurements
Yetai Fei; Kuang-Chao Fan; Rongsheng Lu, Editor(s)

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