发明名称 |
LEAKAGE DETECTOR, LEAKAGE DETECTION METHOD, AND PIPE NETWORK MONITORING APPARATUS |
摘要 |
Provided is a leakage detector which is capable of exhibiting high sensitivity to vibration-sounds caused by water leakage from a synthetic resin pipe and thus setting an installation span longer to thereby make it possible to more efficiently perform a water leakage inspection for a synthetic resin pipe. The leakage detector (6) comprises a base (11), a piezoelectric element (9) supported by the base (21) and configured to convert vibration-sounds to an electric signal, and a weight member (28) loaded against the piezoelectric element (9). The piezoelectric element (9) is made of a polymeric piezoelectric material. One end of the piezoelectric element (9) is supported by an upper end of a support post (27), and the weight member (28) is loaded against the other end of the piezoelectric element (9). |
申请公布号 |
EP2899526(A1) |
申请公布日期 |
2015.07.29 |
申请号 |
EP20130839205 |
申请日期 |
2013.09.20 |
申请人 |
SEKISUI CHEMICAL CO., LTD. |
发明人 |
KONDOU, HIROAKI |
分类号 |
G01M3/24;F17D5/06;G01H11/08;G01P13/00 |
主分类号 |
G01M3/24 |
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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