使用对数放大器的HIFU换能器功率计

S. Delgado, L. Leija, A. Vera
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引用次数: 0

摘要

高强度聚焦超声(HIFU)是一种通过肿瘤消融进行肿瘤治疗的非侵入性技术。当超声换能器和激励装置之间存在阻抗不匹配时,产生的反射波会损坏激励装置。为了避免这种可能的损害,了解超声波换能器的正向和反射功率是很重要的。本工作的目的是研制一种能够测量超声换能器的正向和反射功率的功率计,并计算出最终的驻波比,以避免对激励装置的损坏。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Power meter for HIFU transducers using logarithmic amplifiers
High Intensity Focused Ultrasound (HIFU) is a non-invasive technique used for oncology treatment through tumor ablation. When an impedance mismatch is present between the ultrasound transducer and the excitation device, a reflected wave is produced which can damage the excitation device. To avoid this possible damage is important to know the forward and reflected power of ultrasound transducers. The purpose of this work is to develop a power meter which can measure the forward and reflected power of ultrasound transducers and calculate the Standing Wave Ratio with the finality to avoid damage at the excitation device.
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