发明名称 |
Ultrasonic transmitter-receiver |
摘要 |
An ultrasonic transmitter-receiver is characterized in that a diaphragm is disposed at the center of a laminated piezo-electric element and the periphery of the diaphragm is flexibly fixed in a housing through a buffer member of elastic rubber or the like in order to suppress mechanical oscillation.
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申请公布号 |
US4458170(A) |
申请公布日期 |
1984.07.03 |
申请号 |
US19810328698 |
申请日期 |
1981.12.08 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
TAKAYAMA, RYOICHI;ISE, YUKIHIKO |
分类号 |
G10K9/122;(IPC1-7):H04R17/00 |
主分类号 |
G10K9/122 |
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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