发明公开
- 专利标题: Piezoelectric transducer
- 专利标题(中): Piezoelektrischer Wandler。
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申请号: EP89308665.2申请日: 1989-08-25
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公开(公告)号: EP0358390A2公开(公告)日: 1990-03-14
- 发明人: Ogura, Kohji
- 申请人: NGK SPARK PLUG CO., LTD
- 申请人地址: No. 14-18, Takatsuji-cho Nagoya-shi Aichi-ken JP
- 专利权人: NGK SPARK PLUG CO., LTD
- 当前专利权人: NGK SPARK PLUG CO., LTD
- 当前专利权人地址: No. 14-18, Takatsuji-cho Nagoya-shi Aichi-ken JP
- 代理机构: Cheyne, John Robert Alexander Mackenzie
- 优先权: JP224087/88 19880907
- 主分类号: G01V1/20
- IPC分类号: G01V1/20 ; H01L41/08
摘要:
A piezoelectric transducer includes an elongated, spiral or meandering piezoelectric element (2) in the form of a coaxial cable, and an electrically insulating layer (6) surrounding the piezoelectric element (2). The element (2) has a core electrode (3), a piezoelectric layer (4) surrounding the core electrode (3), and an outer electrode layer (5) surrounding the piezoelectric layer (4).
公开/授权文献
- EP0358390B1 Piezoelectric transducer 公开/授权日:1993-10-20
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