Study on electromagnetic ultrasonic thickness measurement echo processing method based on ChOA-adaptive VMD algorithm

Jinsong Li; Lei Lei; Honggang Zuo; Guangshuai Duan

doi:10.1117/12.3055343

12 December 2024 Study on electromagnetic ultrasonic thickness measurement echo processing method based on ChOA-adaptive VMD algorithm

Jinsong Li, Lei Lei, Honggang Zuo, Guangshuai Duan

Author Affiliations +

Proceedings Volume 13439, Fourth International Conference on Testing Technology and Automation Engineering (TTAE 2024); 134390C (2024) https://doi.org/10.1117/12.3055343
Event: Fourth International Conference on Testing Technology and Automation Engineering (TTAE 2024), 2024, Xiamen, China

Abstract

This paper addresses the issue of inaccurate detection caused by noise interference in the echo signals of electromagnetic ultrasonic thickness measurement. A method to improve detection accuracy is proposed. An experimental platform was established, where planar spiral coils and permanent magnets were used to excite ultrasonic shear waves for thickness measurement experiments on metal pipes of varying thicknesses. The echo signals were denoised using an adaptive variational mode decomposition algorithm based on the Chimp Optimization Algorithm (ChOA-VMD), and effective peaks were extracted using the Findpeaks function. The final wall thickness data were then calculated. Experimental results show that this method reduces measurement errors to less than 0.1%, effectively filters out noise, extracts useful signals, and significantly improves detection efficiency and accuracy.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jinsong Li, Lei Lei, Honggang Zuo, and Guangshuai Duan "Study on electromagnetic ultrasonic thickness measurement echo processing method based on ChOA-adaptive VMD algorithm", Proc. SPIE 13439, Fourth International Conference on Testing Technology and Automation Engineering (TTAE 2024), 134390C (12 December 2024); https://doi.org/10.1117/12.3055343

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