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Design and Piezoelectric properties of 2-2 piezocomposite Ultrasonic Transducers by means of the Finite Element Methode
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유한요소해석법을 이용한 2-2형 압전복합재료 초음파 트랜스듀서의 설계 및 압전특성

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Type
Academic journal
Author
Jae-Sung Park (영남이공대학) Sang-Wook Lee (포디컬쳐)
Journal
The Institute of Electronics and Information Engineers The Institute of Electronics Engineers of Korea - IE Vol.48-IE No.2 KCI Accredited Journals
Published
2011.6
Pages
40 - 46 (7page)

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Design and Piezoelectric properties of 2-2 piezocomposite Ultrasonic Transducers by means of the Finite Element Methode
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In this study, PZT-5A green sheet were prepared by using tape casting technique, and the piezoelectric properties of PZT-5A by variation of sintering temperature was investigated. After, design and piezoelectric properties of 2-2 piezocomposite ultrasonic transducers by menas of the FEA. The acoustic impedance and piezoelectric charge constant of the 2-2 type piezocomposite transducer decreased proportionally due to the density decrease caused by the PZT volume fraction decrease. The piezocomposite acoustic impedance were 7～3 MRayl between 0.6 and 0.2 allowing it to be used for a ultrasonic transducer. The resonance characteristics and the electro-mechanical coupling factor were the best when the volume fraction PZT was 0.6. The PZT volume fraction shows the fixed value, 0.6～0.65, approximately within the range between 0.2 and 0.6 while it is increased to decreased over the range. The result of the experiment above confirmed that the 2-2 piezoelectric composites could be used as the ultrasonic transducers.
#Piezocomposite #Acoustic impedance #Electro-mechanical coupling factor #Finite element methode

Contents

요약
Abstract
Ⅰ. 서론
Ⅱ. PZT-5A 시편 제작 및 압전복합재료 설계
Ⅲ. 결과 및 고찰
Ⅳ. 결론
참고문헌
저자소개

References (9)

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1. [학술지(정기간행물)] - 노용래 / 2001 / 초음파센서용 압전 재료 / 전기전자재료 학회지 14 (4) : 16 ~ 22 google schola 2. [학술지(정기간행물)] - R. E. Newnham / 1978 / Connectivity and Piezoelectric -Pyroelectric Composites / Mat. Res. Bull 13 : 525 ~ 536 google schola 3. [학술지(정기간행물)] - 노용래 / 200203 / Finite element analysis of underwater capacitor micromachined ultrasonic transducers / IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 49 (3) : 293 ~ 298 google schola 4. [학술지(정기간행물)] - S. Takahashi / 1995 / Electro-mechanical characteristics of lead-zirconate-titanate ceramics under vibration-level change / Proc. of IEEE : 377 ~ 382 google schola 5. [학술지(정기간행물)] - R. Lerch / 1990 / Simulation of piezoelectric devices by two and three dimensional finite elements / Ultrason. Ferroelectr. Freq. Contr 37 (2) : 233 ~ 233 google schola

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