发明名称 |
ULTRASONIC TRANSDUCER WITH A MULTIPLE-FOLDED PIEZOELECTRIC POLYMER FILM |
摘要 |
An ultrasonic transducer includes a piezoelectric polymer film folded as at least two layers and having electrodes on both the surfaces thereof. The ultrasonic transducer is responsive to a signal, applied across electrodes, to produce an ultrasonic wave to be focused at one spot so that it is converted to an electric signal. In this ultrasonic transducer, a groove or through holes are formed on and along the folded area of the piezoelectric polymer film. |
申请公布号 |
DE3570123(D1) |
申请公布日期 |
1989.06.15 |
申请号 |
DE19853570123 |
申请日期 |
1985.05.03 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
KANEKO, NAGAO C/O PATENT DIVISION;NAKAMURA, NANAO C/O PATENT DIVISION |
分类号 |
B06B1/06;G01H11/08;(IPC1-7):G01H11/08;G10K11/34 |
主分类号 |
B06B1/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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