发明名称 |
Method of making composite piezoelectric transducer arrays |
摘要 |
Transducer elements having a 2-2 or 1-3 composite structure and driven in a k31 transverse mode for small-feature size transducer arrays, which provide improved electrical impedance matching to an ultrasonic imaging system and improved acoustic matching to the human body. The transducer element includes a plurality of thin piezoceramic wafers which are electroded on opposing major surfaces. The spaced wafers are separated by a passive polymer layer in a composite structure. Methods of producing the transducer elements are also described.
|
申请公布号 |
US6467140(B2) |
申请公布日期 |
2002.10.22 |
申请号 |
US20010754980 |
申请日期 |
2001.01.05 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
GURURAJA TURUKEVERE R. |
分类号 |
G01N29/24;A61B8/00;B06B1/06;H01L41/08;H01L41/083;H04R17/00;H04R17/08;(IPC1-7):A04R17/00 |
主分类号 |
G01N29/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|