碩士 / 國立臺灣大學 / 造船及海洋工程學研究所 / 90 / The text mainly confers the design and fabrication of the single circular disc of piezoelectric transducers. Firstly, by integrating of the sound field formula of the circular disc simulates a complete sound field. Then by use of wave equation and boundary equation obtain the impedance matrix of the piezoelectric transducer. The impedance matrix simulates the electric property of the transducer.
Then the text explains the design of the structure of the transducer and the best thickness of the matching layer. Mainly, when the main frequency is decided, the purpose is to achieve short waveform, wide band and high sensitivity.
Finally, we make two underwater ultrasound transducers according to the theorem of the devise. They are P4 and P5 transducer depending on the piezoelectric material. Then, we compare with the P4, P5 and the original transducer of their acoustics characters. The result will be the reference of the next fabrication.
| Identifer | oai:union.ndltd.org:TW/090NTU00345033 |
| Date | January 2002 |
| Creators | C.C.Lo, 羅際君 |
| Contributors | C.C.Sung, 宋家驥 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 0 |
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