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.
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申请公布号 |
US4725994(A) |
申请公布日期 |
1988.02.16 |
申请号 |
US19850729734 |
申请日期 |
1985.05.02 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
KANEKO, NAGAO;NAKAMURA, NANAO |
分类号 |
B06B1/06;G01H11/08;(IPC1-7):H04R17/00;H01L41/08 |
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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