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International Journal of Engineering، جلد ۳۳، شماره ۲، صفحات ۳۲۰-۳۲۸
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Generating and Focusing the Ultrasound Waves Using Elastomer-based Capacitive Micro-Speakers |
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| چکیده انگلیسی مقاله |
Ultrasound wave is a kind of waves with the frequency higher than the human audible frequency. Although ultrasound was first used for military identification purposes, it has been used for decades for various other applications, especially medical applications. Medical applications of ultrasound include diagnostic and therapeutic applications, such as for the treatment of cancer. In this paper, for the first time, electrostatically-actuated micro-speakers made of a dielectric elastomer (DE) have been used to generate and focus the ultrasonic waves using Micro-Electro-Mechanical Systems (MEMS) technology. The results have shown that a single micro-speaker could not generate an efficient focused wave, so an array of the micro-speakers has been considered. The layout of the micro-speakers is a square array of Bessel Panel. It has been shown that by adopting a suitable excitation frequency as well as number of the elements in the Bessel’s panel, the DE-based capacitive micro-structures can focus the generated sound wave in a pre-determined area. |
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| کلیدواژه‌های انگلیسی مقاله |
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| نویسندگان مقاله |
M. Soosani |
Mechanical Engineering Department, Urmia University, Urmia, Iran
M. Fathalilou |
Mechanical Engineering Department, Urmia University, Urmia, Iran
G. Rezazadeh |
Mechanical Engineering Department, Urmia University, Urmia, Iran
M. Homaei |
Institute of Engineering and Technology, South Ural State University, Chelyabinsk, Russian Federation
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| نشانی اینترنتی |
http://www.ije.ir/article_103381_b812454cb541d33d03b423ad2b2450f2.pdf |
| فایل مقاله |
اشکال در دسترسی به فایل - ./files/site1/rds_journals/409/article-409-2284830.pdf |
| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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