摘要
This paper summarizes the design and fabrication of several novel ultrasound transducers for measuring surface and Lamb waves. The experimental setup and measurement method for each developed transducer are also addressed. According to piezoelectric materials being used, two types of ultrasound transducers are discussed which are PVDF focusing transducers and micro-machined PZT transducers. For the PVDF transducers, a defocusing measurement along with a V(f,z) waveform processing technique are developed which allow accurately determination of dispersion curves of either surface waves of a layered medium or Lamb waves of a thin plate. Elastic properties of coating layers and thin plates are therefore non-destructive determined. For the micro-machined PZT transducers, a differential type wave velocity measurement is developed which is extremely sensitive to small wave velocity variation. Hence, the mechanical and dielectric loading effects of a fluid to the Lamb waves of a piezoelectric plate are experimentally and theoretically characterized, which can be used for acoustic sensing of fluids.
| 原文 | English |
|---|---|
| 主出版物標題 | IUTAM Symposium on Recent Advances of Acoustic Waves in Solids - Proceedings of the IUTAM Symposium on Recent Advances of Acoustic Waves in Solids |
| 編輯 | Tsung-Tsong Wu, Chien-Ching Ma |
| 發行者 | Springer Verlag |
| 頁面 | 95-103 |
| 頁數 | 9 |
| ISBN（列印） | 9789048198924 |
| DOIs | |
| 出版狀態 | Published - 2010 一月 1 |
| 事件 | IUTAM Symposium on Recent Advances of Acoustic Waves in Solids, 2009 - Taipei, Taiwan 持續時間: 2009 五月 25 → 2009 五月 28 |
出版系列
| 名字 | IUTAM Bookseries |
|---|---|
| 卷 | 26 |
| ISSN（列印） | 1875-3507 |
Other
| Other | IUTAM Symposium on Recent Advances of Acoustic Waves in Solids, 2009 |
|---|---|
| 國家 | Taiwan |
| 城市 | Taipei |
| 期間 | 09-05-25 → 09-05-28 |
指紋
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
引用此文
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Measurement of surface & lamb waves with application on acoustic sensing & non-destructive evaluation. / Lee, Yung-Chun; Kuo, Shi Hoa; Chung, Cheng Hsien.
IUTAM Symposium on Recent Advances of Acoustic Waves in Solids - Proceedings of the IUTAM Symposium on Recent Advances of Acoustic Waves in Solids. 編輯 / Tsung-Tsong Wu; Chien-Ching Ma. Springer Verlag, 2010. p. 95-103 (IUTAM Bookseries; 卷 26).研究成果: Conference contribution
TY - GEN
T1 - Measurement of surface & lamb waves with application on acoustic sensing & non-destructive evaluation
AU - Lee, Yung-Chun
AU - Kuo, Shi Hoa
AU - Chung, Cheng Hsien
PY - 2010/1/1
Y1 - 2010/1/1
N2 - This paper summarizes the design and fabrication of several novel ultrasound transducers for measuring surface and Lamb waves. The experimental setup and measurement method for each developed transducer are also addressed. According to piezoelectric materials being used, two types of ultrasound transducers are discussed which are PVDF focusing transducers and micro-machined PZT transducers. For the PVDF transducers, a defocusing measurement along with a V(f,z) waveform processing technique are developed which allow accurately determination of dispersion curves of either surface waves of a layered medium or Lamb waves of a thin plate. Elastic properties of coating layers and thin plates are therefore non-destructive determined. For the micro-machined PZT transducers, a differential type wave velocity measurement is developed which is extremely sensitive to small wave velocity variation. Hence, the mechanical and dielectric loading effects of a fluid to the Lamb waves of a piezoelectric plate are experimentally and theoretically characterized, which can be used for acoustic sensing of fluids.
AB - This paper summarizes the design and fabrication of several novel ultrasound transducers for measuring surface and Lamb waves. The experimental setup and measurement method for each developed transducer are also addressed. According to piezoelectric materials being used, two types of ultrasound transducers are discussed which are PVDF focusing transducers and micro-machined PZT transducers. For the PVDF transducers, a defocusing measurement along with a V(f,z) waveform processing technique are developed which allow accurately determination of dispersion curves of either surface waves of a layered medium or Lamb waves of a thin plate. Elastic properties of coating layers and thin plates are therefore non-destructive determined. For the micro-machined PZT transducers, a differential type wave velocity measurement is developed which is extremely sensitive to small wave velocity variation. Hence, the mechanical and dielectric loading effects of a fluid to the Lamb waves of a piezoelectric plate are experimentally and theoretically characterized, which can be used for acoustic sensing of fluids.
UR - http://www.scopus.com/inward/record.url?scp=84897884862&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84897884862&partnerID=8YFLogxK
U2 - 10.1007/978-90-481-9893-1_9
DO - 10.1007/978-90-481-9893-1_9
M3 - Conference contribution
AN - SCOPUS:84897884862
SN - 9789048198924
T3 - IUTAM Bookseries
SP - 95
EP - 103
BT - IUTAM Symposium on Recent Advances of Acoustic Waves in Solids - Proceedings of the IUTAM Symposium on Recent Advances of Acoustic Waves in Solids
A2 - Wu, Tsung-Tsong
A2 - Ma, Chien-Ching
PB - Springer Verlag
ER -