Results 141 to 150 of about 257 (180)
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Design of Auto-Centering System for High-Speed Rail Flaw Detection Vehicle
2018 37th Chinese Control Conference (CCC), 2018An auto-centering system for the ultrasonic detector of high-speed rail flaw detection vehicle is designed and tested. The following research contents are completed: 1. An auto-tracking sensor is designed; 2. The hardware and software systems for the highly real-time auto-tracking control system are designed; 3.
Ken Chen +3 more
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Exploring enhanced rail flaw detection using ultrasonic phased array inspection
AIP Conference Proceedings, 2002Previous work highlighted experiments contrasting immersion test results on rail to scans made with a rail search unit, ideally as a means of indicating areas of modeling that most need improvement. Some interesting flaw/beam orientation effects were noted. This foray into using a linear phased array inspection for the same rails indicates that using a
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Detection and classification of rail track flaws using inertial and magnetometric sensors
2018 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus), 2018The team of the Department of Laser Measuring and Navigation Systems of SPbGETU LETI proposed a method for diagnosing surface defects based on inertial measurements. This approach was later introduced into the AVIKON-03M flaw detector car produced by the JSC “Radioavionika”, which was equipped with a set of micromechanical inertial modules for this ...
Alexander M. Boronakhin +4 more
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Flaw detection in high speed train's rail based on EMD and PSD
2011 IEEE International Instrumentation and Measurement Technology Conference, 2011This paper proposes a new flaw detection method based on EMD and PSD with application to high speed train's rail. The signals in different scenarios are generated by utilizing the finite element model. In this paper, the empirical mode decomposition method is used to decompose the investigated signals into intrinsic mode functions and the flaw features
Xin Zhang +3 more
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On the Possibility of In-Process Magnetic Detection of Flaws in Rails
Russian Journal of Nondestructive Testing, 2019A procedure has been developed to detect surface defects in the head and foot of a rail using a magnetic method involving thin-film magnetoresistive field sensors. The setup consists of a system for moving the rail in the longitudinal direction, a magnetizing solenoid, cartridges with field sensors for inspecting the rail head and foot, a DC ...
A. S. Shleenkov +3 more
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Detection of flaws in used railroad rail by ultrasonic inspection techniques
NDT International, 1979Abstract The qualitative differences in the responses of new and used rail to ultrasonic inspection have been known for some time. The material presented in this paper quantifies the actual responses obtained from a collection of four rail samples which are typical of rail used on United States' railways.
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Use of Laser Ultrasonics for Rail Flaw Detection—An Insight into Preliminary Experiments
ICRT 2017, 2018There is an ever increasing demand for higher tonnages to be transported in heavy haul trains. This means that ensuring safety and reliability of rail tracks becomes an even more critical priority. Early detection of rail flaws ensures transportation safety and averts unplanned downtime.
S. Alahakoon +4 more
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Rail foot flaw detection based on a laser induced ultrasonic guided wave method
Measurement, 2019Abstract With the advancements in Railway Engineering in non-destructive testing technologies, a system for the fast detection of rail flaws at earliest stage is in huge demand. Such a system could result in savings in maintenance and would have less operational impact.
Madhuri Pathak +3 more
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Discussion on the Daily Application of GCT-8C Digital Rail Flaw Detector in Rail Flaw Detection
Foreign Language Science and Technology Journal Database Engineering Technology, 2021openaire +1 more source
Analysis of Nondestructive Flaw Technology in Rail Detection
Foreign Language Science and Technology Journal Database Engineering Technology, 2022openaire +1 more source