Quantitative detection of rail head internal hole defects based on laser ultrasonic bulk wave and optimized variational mode decomposition algorithm
Yi Jiang, Shuai Chen, Kaizheng Wang, Weitao Liao, Haitao Wang, Qing Zhang
Topics & Concepts
Ultrasonic sensorDiffractionAcousticsModalSIGNAL (programming language)Mode (computer interface)Materials scienceApproximation errorHead (geology)OpticsModal analysisAlgorithmPhysicsComputer scienceVibrationGeologyOperating systemGeomorphologyPolymer chemistryProgramming languageUltrasonics and Acoustic Wave PropagationNon-Destructive Testing TechniquesStructural Health Monitoring Techniques