Electrical & Electronic Materials (E2M - 전기 전자와 첨단 소재)
- Volume 8 Issue 2
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- Pages.211-216
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- 1995
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- 2982-6268(pISSN)
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- 2982-6306(eISSN)
Pulse-echo response of 1-3 type piezoelectric composite transducers for distance measurement
거리 측정용 1-3형 복합압전체 트랜스듀서의 펄스에코 응답 특성
Abstract
In this study, the piezoelectric ceramics/polymer composite transducers with 1-3 connectivity have been studied. A piezoelectric ceramics PZT prepared by Wet-Dry Combination method was used as a filler in polymer matrix Eccogel. We've got the pulse-echo response for 1-3 type piezc-electric composite transducers in water. It was shown that the transmitting and receiving sensitivity of 1-3 type piezoelectric composite transducers could be improved in comparison with that- of solid PZT transducers. The reason is for that 1-3 type Piezoelectric composites have low dielectric constant and density. There was in a good agreement between the resonant frequencies calculated from one period and observed results on the Ultrasonic Transducer Analyzer. According to these results we could be figured out the distance in water by virture of the pulse-echo response.
Keywords
- Transducer;
- Piezoelectric composite;
- Transmitting and receiving sensitivity;
- Hydrostatic voltage coefficient
- 변환기;
- 복합암전체;
- 송,수신 감도;
- 수중 암전 전압정수;