Thickness Measurement of Surface Attachment on Plate with Lamb Wave

1st International Conference on Frontiers of Materials Synthesis and Processing

材料科学;化学

Ma, Xianglong^1 ; Zhang, Yinghong^1 ; Wen, Lichao^1 ; He, Yehu^1

School of Mechanical Engineering, Guilin University of Electronic Technology, Guilin, China^1

关键词: Nondestructive testing method;    Plate thickness;    Received signals;    Scale thickness;    Simulation analysis;    Surface attachment;    Thickness detection;    Two-dimensional simulations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/274/1/012130/pdf
DOI  :  10.1088/1757-899X/274/1/012130

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Aiming at the thickness detection of the plate surface attachment, a nondestructive testing method based on the Lamb wave is presented. This method utilizes Lamb wave propagation characteristics of signals in a bi-layer medium to measure the surface attachment plate thickness. Propagation of Lamb wave in bi-layer elastic is modeled and analyzed. The two-dimensional simulation model of electromagnetic ultrasonic plate-scale is established. The simulation is conducted by software COMSOL for simulation analysis under different boiler scale thickness wave form curve. Through this study, the thickness of the attached material can be judged by analyzing the characteristics of the received signal when the thickness of the surface of the plate is measured.