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Multimode nondestructive detecting method for high-speed rail defects

  • Harbin Institute of Technology Weihai
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationSelected Papers of the Photoelectronic Technology Committee Conferences held June-July 2015
EditorsDaren Lv, Lijun Wang, Libin Xiang, Michael I. Petelin, Guangjin Zhang, Songlin Zhuang, Shenggang Liu
PublisherSPIE
ISBN (Electronic)9781628418804
DOIs
StatePublished - 2015
EventInternational Conference on Frontiers in International Conference on Frontiers in Terahertz Technology and Applications, and the International Symposium on Surface Topography and Optical Microscopy - Harbin, China
Duration: 23 Jul 201525 Jul 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9795
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceInternational Conference on Frontiers in International Conference on Frontiers in Terahertz Technology and Applications, and the International Symposium on Surface Topography and Optical Microscopy
Country/TerritoryChina
CityHarbin
Period23/07/1525/07/15

Keywords

  • High-speed rail
  • Multimode
  • Nondestructive detecting
  • Photoacoustic detection

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