طراحی، تحلیل و شبیه‌سازی یک میکروژنراتور التراسونیک مبتنی بر پیزوالکتریک با ابعاد کوچک برای حسگرهای زیستی قابل‌تعبیه در بدن

نوع مقاله : مقاله پژوهشی (کاربردی)

نویسندگان

1 استادیار، گروه مهندسی برق و الکترونیک، دانشگاه فنی و حرفه‌ای، تهران، ایران.

2 استاد، گروه مهندسی مکانیک، دانشکده فنی و مهندسی، دانشگاه ارومیه، ارومیه، ایران.

3 دانشجوی ارشد، گروه مهندسی برق و الکترونیک، دانشکده برق، دانشگاه ارومیه، ارومیه، ایران.

4 مربی، گروه مهندسی برق و الکترونیک، دانشگاه فنی و حرفه‌ای، تهران، ایران.

5 استادیار، گروه مهندسی مکانیک، دانشگاه فنی و حرفه‌ای، تهران، ایران.

چکیده

در این مقاله یک میکروژنراتور آلتراسونیک جدید مبتنی بر پیزوالکتریک با هدف تأمین توان موردنیاز تجهیزات پزشکی قابل‌تعبیه در بدن انسان ارائه شده است. برخلاف روش‌های پیشین، این ساختار از امواج صوتی با فرکانس بالاتر برای استخراج انرژی بهره می‌گیرد. با وجود کوچک بودن ابعاد میکروژنراتور پیشنهادی، میزان توان قابل استخراج آن افزایش یافته است. همچنین به دلیل استفاده از نیترات آلومینیوم در ساختار میکروژنراتور طراحی‌شده به‌جای مواد سمی نظیر PZT، این ساختار سازگاری بیشتری با بدن انسان و محیط زیست دارد. شایان ذکر است که حجم ساختار ارائه‌شده 15.7 × 10-6 cm3 می‌باشد و قابلیت تولید توان 260 μW را تحت فشار آکوستیکی اعمالی 1000 pa در فرکانس 1.158 MHz دارد. شبیه‌سازی‌های مختلفی در نرم‌افزار قدرتمند کامسول، برای ارزیابی صحت عملکرد میکروژنراتور پیشنهادی انجام شده است. شایان ذکر است که صحت نتایج شبیه‌سازی، با مقادیر به‌دست‌آمده از تحلیل تئوری و عددی تطبیق داده شده است. در مجموع با توجه به این نتایج به‌دست‌آمده و همچنین ابعاد کوچک و قابلیت تولید توان بالا، می‌توان گفت که ساختار پیشنهادی گزینه مناسبی برای کاربرد در تجهیزات پزشکی قابل تعبیه در بدن انسان می‌باشد.  

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Design, Analysis, and Simulation of a Low Size Ultrasonic Piezoelectric Micro-Generator for Implantable Biosensors

نویسندگان [English]

  • Amin Damya 1
  • Ghader Rezazadeh 2
  • Yasin Khalili 3
  • Hossein Soleimani 1
  • Amin Khalilzadegan 4
  • Nima Ahmadi 5
1 Assistant Professor, Department of Electrical and Electronic Engineering, Technical and Vocational University, Tehran, Iran.
2 Professor, Department of Mechanical Engineering, Faculty of Engineering, Urmia University, Urmia, Iran.
3 MSc Student, Department of Electrical and Electronic Engineering, Faculty of Electrical Engineering, Urmia University, Urmia, Iran.
4 Lecturer, Department of Electrical and Electronic Engineering, Technical and Vocational University, Tehran, Iran.
5 PhD, Department of Mechanical Engineering, Technical and Vocational University, Tehran, Iran.
چکیده [English]

This paper presents a new piezoelectric-based ultrasonic micro-generator to supply the required power of implantable medical devices in the human body. Unlike previous ones, this structure uses sound waves with higher frequency to extract energy. Despite the smaller dimensions, the extractable power of the micro-generator was increased. Using aluminum nitrate instead of toxic materials such as PZT in the structure of the designed microgenerator made it more compatible with the human body and the environment. The presented design occupies only 15.7×10-6 cm3 and can produce 260 μW under the applied acoustic pressure of 1000 Pa at the frequency of 1.158 MHz. Various simulations were performed in the COMSOL software to evaluate the performance of the proposed micro-generator. In addition, simulation results were verified by the values obtained from the theoretical and numerical analyses. According to the obtained results and other salient features, the proposed structure is a suitable candidate for use in implantable medical devices in the human body.

کلیدواژه‌ها [English]

  • Micro
  • generator Piezoelectric Ultrasonic Implanting sensors in the body Sound waves

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فصلنامه علمی کارافن
دوره 19، شماره 3 - شماره پیاپی 59
فنی و مهندسی
آذر 1401
صفحه 357-376

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سابقه مقاله

  • تاریخ دریافت: 04 اردیبهشت 1401
  • تاریخ بازنگری: 01 شهریور 1401
  • تاریخ پذیرش: 09 مهر 1401

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