Leakage detector, leakage detection method, and pipe network monitoring apparatus
US10168243B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2013 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Apr 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P13/0073
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
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 (21), 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).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.