کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8130353 1523201 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Selective focusing through target identification and experimental acoustic signature extraction: Numerical experiments
ترجمه فارسی عنوان
تمرکز انتخابی از طریق شناسایی هدف و استخراج امضا آزمایشی آزمایشی: آزمایش های عددی
کلمات کلیدی
تمرکز موج، سونوگرافی متمرکز شده با شدت بالا، تصویربرداری توپولوژی، استخراج اطلاعات،
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم آکوستیک و فرا صوت
چکیده انگلیسی
Using transducer arrays and appropriate emission delays allow to focus acoustic waves at a chosen location in a medium. The focusing spatial accuracy depends on the accurate knowledge of its acoustic properties. When those properties are unknown, methods based on the Time-Reversal principle allow accurate focusing. Still, these methods are either intrusive (an active source has to be introduced at the target location first), either blind (the target cannot be selected in the presence of several objects.) The purpose of the present work is to achieve non-invasive accurate focusing on a selected target using inaccurate acoustic properties for the investigated medium. Potential applications are for instance noninvasive surgery based on High Intensity Focused Ultrasound (HIFU). Numerical experiments are presented and demonstrate accurate focusing on a previously designated target located in an unknown heterogeneous medium.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics - Volume 68, May 2016, Pages 8-16
نویسندگان
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