Method and arrangement for condition monitoring of a rope of a hoisting apparatus
US11505430B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2018 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Sep 23, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/904
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method for condition monitoring of a rope of a hoisting apparatus, and to an arrangement for condition monitoring of a rope of a hoisting apparatus, preferably of an elevator for transporting passengers and/or goods. The arrangement for condition monitoring of a rope of a hoisting apparatus according to the present invention, in which rope comprises one or more conductive load bearing member for bearing the load exerted on the rope in longitudinal direction and extending parallel to each other and to the longitudinal direction of the rope, comprises an at least one eddy current testing probe, placed near said rope for generating an alternating magnetic field, said alternating magnetic field causing eddy currents in said rope, and for detecting a secondary magnetic field being generated by said eddy currents in said rope as eddy current detection data, and an on-line monitoring unit receiving and utilizing said eddy current detection data for on-line condition monitoring of said rope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.