TY - GEN
T1 - Analysis of High-Temperature Electromagnetic Acoustic Transducer Simulation and Transuction Efficiency Improvement Method
AU - Zhang, Yu
AU - Xie, Yuedong
AU - Lei, Zhixun
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - The transduction efficiency of electromagnetic acoustic transducer (EMAT), particularly in the Lorentz force mechanism, is generally low. Moreover, the factors affecting the transduction efficiency under high-temperature conditions are not fully solved. This study establishes a multi-physical finite element model for electromagnetic acoustic transducer at elevated temperatures (up to 500°C) to investigate the influence of various EMAT parameters on its transduction efficiency. The analysis identifies the reduction in excitation current amplitude at high temperatures as the predominant factor responsible for the efficiency degradation. Furthermore, a power synthesis method is proposed to compensate for this current reduction, offering a viable strategy for enhancing the transduction efficiency of EMAT operating at high temperatures.
AB - The transduction efficiency of electromagnetic acoustic transducer (EMAT), particularly in the Lorentz force mechanism, is generally low. Moreover, the factors affecting the transduction efficiency under high-temperature conditions are not fully solved. This study establishes a multi-physical finite element model for electromagnetic acoustic transducer at elevated temperatures (up to 500°C) to investigate the influence of various EMAT parameters on its transduction efficiency. The analysis identifies the reduction in excitation current amplitude at high temperatures as the predominant factor responsible for the efficiency degradation. Furthermore, a power synthesis method is proposed to compensate for this current reduction, offering a viable strategy for enhancing the transduction efficiency of EMAT operating at high temperatures.
KW - electromagnetic acoustic transducer
KW - finite element model
KW - high-temperature conditions
KW - power synthesis method
KW - transduction efficiency
UR - https://www.scopus.com/pages/publications/105035549521
U2 - 10.1109/ICEIPS67524.2025.11380978
DO - 10.1109/ICEIPS67524.2025.11380978
M3 - 会议稿件
AN - SCOPUS:105035549521
T3 - 2025 4th International Conference on Energy Internet and Power Systems, ICEIPS 2025
SP - 388
EP - 391
BT - 2025 4th International Conference on Energy Internet and Power Systems, ICEIPS 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th International Conference on Energy Internet and Power Systems, ICEIPS 2025
Y2 - 31 October 2025 through 2 November 2025
ER -