About application of radar technology in rail transportfor the diagnostics of the condition of the rail track and rolling stock components

Potylitsyn, V. S.; Shaydurov, G. Y.; Kokhonkova, E. A.

doi:10.1109/sibcon.2017.7998426

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…The possibility of detecting both external and internal defects of a vibrating rail by measuring the spectra of reflected radar signal is considered in the conference paper [6]. The paper outlines the concept of the method, but does not provide any experimental data from which one could conclude about its capabilities.…”

Section: Introductionmentioning

confidence: 99%

On the Use of Microwave Holography to Detect Surface Defects of Rails and Measure the Rail Profile

Zhuravlev

Razevig

Ivashov

et al. 2019

Sensors

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The use of microwave holography for detecting rail surface defects is considered in this paper. A brief review of available sources on radar methods for detecting defects on metal surfaces and rails is given. An experimental setup consisting of a two-coordinate electromechanical scanner and a radar with stepped frequency signal in the range from 22.2 to 26.2 GHz is described, with the help of which experimental data were obtained. Fragments of R24 rails with surface defects in their heads were used as the object of study. The radar images of rail defects were obtained by the described method based on back propagation of a wavefront. It is shown that polarization properties of electromagnetic waves can be used to increase the contrast of small-scale surface defects. A method of estimating rail surface profile by radar measurements is given and applied to the experimental data. Comparison of the longitudinal rail head profiles obtained by radar and by direct contact measurements showed that the radar method gives comparable accuracy.

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Section: Introductionmentioning

confidence: 99%