Monitoring system, safety cable and tube for such a system, and method for operating a monitoring system
US10942208B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2018 |
| Grant date | Mar 9, 2021 |
| Priority date | — |
| Expiry date | Jun 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/46
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A monitoring system contains a safety cable that has at least one line along which a fault sensor device extends. The safety cable has a capacitor with two electrodes and an inductor which is made of a conductor that is electrically connected to one of the electrodes such that a series resonant circuit is formed. By ascertaining a resonant frequency of the series resonant circuit, the state of the safety cable, in particular the wear of the safety cable, is determined and a possible future fault is predicted in particular. A corresponding safety cable in particular in the form of a prefabricated material available by the meter and a method for operating the monitoring system are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.