发明名称 |
Impedance matching transducers |
摘要 |
The present invention provides exemplary transducer elements, transducer packages and methods of making same. One exemplary transducer element (10) has first and second transducer surfaces (14, 20) and a plurality of tapered pillars (16) that comprise piezoelectric material and extend between the first and second transducer surfaces. At least one of the pillars has a first cross-sectional area at the first transducer surface that is larger than a second cross-sectional area at the second transducer surface. Hence, the transducer has a lower acoustic impedance at the second surface than at the first surface.
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申请公布号 |
US6390985(B1) |
申请公布日期 |
2002.05.21 |
申请号 |
US19990358496 |
申请日期 |
1999.07.21 |
申请人 |
SCIMED LIFE SYSTEMS, INC. |
发明人 |
MAMAYEK DON S. |
分类号 |
A61B8/12;B06B1/06;G10K11/02;H04R17/00;(IPC1-7):A61B8/12 |
主分类号 |
A61B8/12 |
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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