发明名称 |
Ultrasonic transducer |
摘要 |
A transducer included in an ultrasonic source is a concave ultrasonic transducer made of a piezoelectric material. The concave ultrasonic transducer is shaped into such body of revolution that a section of the transducer forms a revolutionary arc surface consisting of two arcs. Owing to the shape, an ultrasonic source similar to a conventional ring type source is constructed.
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申请公布号 |
US4044273(A) |
申请公布日期 |
1977.08.23 |
申请号 |
US19750635086 |
申请日期 |
1975.11.25 |
申请人 |
HITACHI, LTD. |
发明人 |
KANDA, HIROSHI;KATAKURA, KAGEYOSHI;SUZUKI, TAKAJI |
分类号 |
G01S7/52;A61B8/00;G01N29/04;G01S7/521;G01S15/89;G10K11/32;H04R1/32;H04R17/00;(IPC1-7):H01L41/04 |
主分类号 |
G01S7/52 |
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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