发明名称 |
PRODUCTION OF ULTRASONIC PROBE AND COMPOSITE PIEZOELECTRIC OSCILLATOR USED FOR THE PROBE |
摘要 |
PURPOSE:To suppress a side lobe level in a short axis direction and further to facilitate manufacture concerning the manufacture of an ultrasonic probe and a composite piezoelectric oscillator used for the probe. CONSTITUTION:This ultrasonic probe divides a composite piezoelectric oscillator board 1 in the shape of arrangement and scans ultrasonic beams in an arranging direction A, and the composite piezoelectric oscillator board 1 is formed by joining plural piezoelectric oscillator boards 2 in a thickness-wise direction B orthogonal to the arranging direction A. Then, the above-mentioned piezoelectric oscillator boards 2 are arranged so that radial sound pressure or electric/ mechanical converting efficiency can be high at the center and gradually lowered toward the edge. |
申请公布号 |
JPH0576527(A) |
申请公布日期 |
1993.03.30 |
申请号 |
JP19910242973 |
申请日期 |
1991.09.24 |
申请人 |
FUJITSU LTD |
发明人 |
HARA YASUSHI;WATANABE KAZUHIRO |
分类号 |
A61B8/00;G01N29/24;H04R17/00 |
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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