Method and assembly for sensing permanent deformation of a structure
US9032810B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 2011 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Apr 7, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/086
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a method of sensing permanent deformation of a structure, the method comprising the steps of; determining the strain required to permanently deform a structure; securing to the structure one or more strain sensors so that a strain sensor will deform when the structure is deformed, wherein the or each strain sensor comprises one or more optical fibers and wherein the or each strain sensor is configured such that it will permanently deform only when the structure permanently deforms; carrying out distributed fiber optic analysis to sense if a strain sensor has been permanently deformed, wherein a permanent deformation of a strain sensor indicates permanent deformation of the structure. The present invention also relates to a corresponding assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.