微波加热下微波诱导热声学多物理场模拟实验验证

2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) Pub Date : 2022-07-10 DOI:10.1109/AP-S/USNC-URSI47032.2022.9887088

A. Evans, Chu Ma, S. Hagness

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引用次数: 0

摘要

微波诱导热声成像是一种很有前途的实时监测微波烧蚀的方法。我们研究了动态温度环境对热声信号特性的影响。首先，我们利用空间均匀温度分布对模拟模型进行了实验验证。然后，我们研究了微波加热过程中出现的空间不均匀温度分布中TA信号特征的演变。我们发现热声信号的特征是高度依赖于温度的，因此在温度随空间和时间变化的环境中变化显著。

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An Experimentally Validated Multi-Physics Simulation of Microwave-Induced Thermoacoustics under Microwave Heating

Microwave-induced thermoacoustic imaging is a promising method for monitoring microwave ablation in real-time. We investigate the impact of a dynamic temperature environment on thermacoustic signal characteristics. First, we experimentally validate the simulation model using spatially uniform temperature profiles. Then, we investigate the evolution of TA signal characteristics within the spatially nonuniform temperature profiles that arise during microwave heating. We find that thermoacoustic signal characteristics are highly temperature-dependent and thus change significantly within an environment where temperature varies through space and time.

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2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)

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