Electric cable with strain sensor and monitoring system and method for detecting strain in at least one electric cable
US8953915B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2009 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | May 30, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B9/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electric cable includes a strain sensor longitudinally extending along the cable and including a strain optical fiber arranged within a bending neutral region surrounding and including a bending neutral longitudinal axis of the electric cable, and at least two longitudinal structural elements, at least one of the at least two longitudinal structural elements being a core including an electrical conductor, wherein the strain sensor is embedded in a strain-transferring filler mechanically coupling at least one of the at least two longitudinal structural elements with the strain sensor. With the disclosed cable construction, the strain experienced by the at least one of the at least two longitudinal structural elements is transferred to the strain sensor at least in a strained condition. In the preferred embodiments, the electric cable is a heavy-duty cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.