Seamless steel rail detection method and device based on guided wave attenuation and storage medium

• Main Authors: XU XINING, SHI HONGMEI, GUO BAOQING, ZHU LIQIANG, YU ZUJUN
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to a seamless steel rail detection method based on guided wave attenuation characteristics, which is characterized in that excitation signals are selectively applied to different parts of a steel rail, and a complex modal separation algorithm is not needed; defect detection is carried out by obtaining the influence function of the temperature on ultrasonic guided wave attenuation, the influence of different temperatures on guided wave signals can be effectively overcome, and the detection accuracy is improved; the false detection rate and the missing report rate are reduced by utilizing a plurality of receiving positions, the defect interval is accurately positioned by further adjusting the receiving positions, and when the excitation positions and the receiving positions form an array, defect detection and positioning are more convenient and quicker. Therefore, the method can improve the reliability and accuracy of defect detection, and is simple and practical. 本发明涉及一种基于导波衰减特性的无缝钢轨检测方法，