@inproceedings{6beeae9067b24bc1b9d346b449454bc6,
title = "Development of a Novel Electromagnetic Acoustic Transducer with Magnetostrictive Fe3O4 Coating and Flexible Coil",
abstract = "This paper proposes a novel electromagnetic acoustic transducer (EMAT) integrating a magnetostrictive Fe₃O₄ coating and a flexible coil, to address limitations of traditional EMATs such as coupling agent reliance and narrow application scope of rigid strips. Fe3O₄ is selected for its prominent magnetostrictive performance, oxidation resistance and high Curie temperature. The EMAT uses a permanent magnet to pre-magnetize the Fe₃O₄ coating, which serves as both bias source and pre-magnetization medium. A flexible spiral coil (0.12 mm in diameter) generates high-frequency alternating magnetic fields. Ultrasonic waves are induced in the Fe₃O₄ coating via magnetostriction, driven by the interaction between dynamic and bias magnetic fields. The coil detects magnetic field variations from coating vibrations for signal reception. Experiments confirm the EMAT{\textquoteright}s feasibility: its shear wave and longitudinal wave signal-to-noise ratios reach 24.8 and 17.6 dB, respectively. Lightweight and compact, this EMAT suits long-term structural monitoring of complex components in harsh environments.",
keywords = "Electromagnetic acoustic transducer, Flexible EMAT coil, Magnetostrictive Fe₃O₄ coating, Ultrasonic testing",
author = "Caixia Peng and Kexin Cheng and Haoyu Wang and Rui Yuan and Zhichao Li and Bao Liang",
note = "Publisher Copyright: {\textcopyright} The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2026.; 2nd Electrical Artificial Intelligence Conference, EAIC 2025 ; Conference date: 03-11-2025 Through 05-11-2025",
year = "2026",
doi = "10.1007/978-981-95-7936-5\_41",
language = "英语",
isbn = "9789819579358",
series = "Lecture Notes in Electrical Engineering",
publisher = "Springer Science and Business Media Deutschland GmbH",
pages = "529--537",
editor = "Gang Mu and Zhengxiang Song and Zhiming Ding and Li Han",
booktitle = "Proceedings of the 2nd Electrical Artificial Intelligence Conference, Volume 2 - EAIC 2025",
address = "德国",
}