发明名称 |
ULTRASONIC ECHO SOUNDING PROBE HAVING ACOUSTIC LENS AND ECHO SOUNDER USING IT |
摘要 |
A probe primarily applicable to medical echography for achieving a variable compromise between depth of field and lateral resolution incorporates a main piezoelectric transducer, a plano-convex lens having an elastic diaphragm, an auxiliary transducer for measuring the deflection of the lens and means for controlling the deflection in dependence on a reference value by modifying the pressure exerted on the diaphragm by the fluid contained within the lens. |
申请公布号 |
JPS56137263(A) |
申请公布日期 |
1981.10.27 |
申请号 |
JP19810033051 |
申请日期 |
1981.03.06 |
申请人 |
SE JIE EERU YURUTORASONITSUKU |
发明人 |
JIYATSUKU DORII |
分类号 |
A61B8/00;G01S7/52;G01S7/521;G01S15/89;G10K11/30;H04R1/00 |
主分类号 |
A61B8/00 |
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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