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Proceedings Paper

Multimode nondestructive detecting method for high-speed rail defects
Author(s): Mingjian Sun; Xingzhen Cheng; Guangnan Wan; Ting Liu; Ying Fu; Yan Wang
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Paper Abstract

It is very important to detect the surface defects of the high-speed rail for security concerns. A multimode detecting method, which integrates high resolution of optical image, high precision of photoacoustic detection and strong penetration of ultrasound detecting, is proposed for the rail defect detection. Utilizing the surface defect characteristics obtained from optical signal, the photoacoustic and ultrasound scanning region could be determined, and rail shallow and internal defect characteristics can be acquired subsequently. Eventually, fusing three modal signals mentioned above, the information of the entire rail defect, including type, extension trend and depth can be detected. It has been proved that the multimode method can improve the detecting efficiency, and enlarge the detection range in the meantime.

Paper Details

Date Published: 5 November 2015
PDF: 9 pages
Proc. SPIE 9795, Selected Papers of the Photoelectronic Technology Committee Conferences held June–July 2015, 979513 (5 November 2015); doi: 10.1117/12.2214419
Show Author Affiliations
Mingjian Sun, Harbin Institute of Technology at Weihai (China)
Xingzhen Cheng, Harbin Institute of Technology at Weihai (China)
Guangnan Wan, Harbin Institute of Technology at Weihai (China)
Ting Liu, Harbin Institute of Technology at Weihai (China)
Ying Fu, Harbin Institute of Technology at Weihai (China)
Yan Wang, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 9795:
Selected Papers of the Photoelectronic Technology Committee Conferences held June–July 2015
Shenggang Liu; Songlin Zhuang; Michael I. Petelin; Libin Xiang, Editor(s)

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