发明名称 |
SECURITY APPARATUS, PARTICULARLY FOR PROTECTING THE PERIMETERS OF SITES |
摘要 |
Security apparatus (1), particularly for protecting the perimeters of sites, operable to indicate approaches, intrusions and the like, with high sensitivity and reliability, comprises a plurality of piezo-electric transducers (4) intended to be buried underground along the perimeter of the site to be protected, each piezo-electric transducer (4) comprising a cup-shape body (6) and a plate-like piezo-electric sensor (10) having a peripheral portion (11a) fixed to the cup-shape body (6).
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申请公布号 |
WO9610195(A1) |
申请公布日期 |
1996.04.04 |
申请号 |
WO1995EP03741 |
申请日期 |
1995.09.22 |
申请人 |
TONELLI, AUGUSTO;TONELLI, ALDO;TONELLI, GIORGIO |
发明人 |
TONELLI, AUGUSTO;TONELLI, ALDO;TONELLI, GIORGIO |
分类号 |
G01V1/18;(IPC1-7):G01V1/18 |
主分类号 |
G01V1/18 |
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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