적층 압전 변환기의 진동 특성Vibration Characteristics of Stacked Piezoelectric Transducers
- Other Titles
- Vibration Characteristics of Stacked Piezoelectric Transducers
- Authors
- 김대종; 김진오
- Issue Date
- Mar-2015
- Publisher
- 한국소음진동공학회
- Keywords
- Piezoelectricity; Transducer; Stack; Natural Frequency; Finite Element Analysis; 압전; 변환기; 적층; 고유진동수; 유한요소 해석
- Citation
- 한국소음진동공학회논문집, v.25, no.3, pp.199 - 206
- Journal Title
- 한국소음진동공학회논문집
- Volume
- 25
- Number
- 3
- Start Page
- 199
- End Page
- 206
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/8914
- DOI
- 10.5050/KSNVE.2015.25.3.199
- ISSN
- 1598-2785
- Abstract
- This paper deals with the vibration characteristics of stacked transducers composed of piezoelectric discs, which are main elements of ultrasonic sensors or actuators. The stacked transducers were devised in the sense of natural frequencies. Two- or three-layer transducers were fabricated with piezoelectric discs of different diameters. The natural frequencies were determined by the finite element analysis and they were verified by comparing them with experimental results. It appeared that the natural frequencies of the stacked piezoelectric transducers include the natural frequencies of the constituent piezoelectric discs and the natural frequencies caused by stacking. Based on these results, it would be possible to predict the vibration characteristics of the stacked piezoelectric transducers in a design process.
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