Fault detection for pipelines
US9513258B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2013 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Sep 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/15
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention concerns a structural integrity assessment system and method for determining stress concentration zones in a structure, such as a pipeline. The invention comprises a magnetic field sensor array arranged to be moved relative to the structure in a known direction. A controller is provided for recording one or more magnetic field readings taken by the magnetic field sensor array at different locations in the direction of movement thereof. A processor is arranged to identify one or more feature within said values, said feature being indicative of a region of reduced structural integrity in the structure. The processor also receives a data input for a further parameter corresponding to the location of the sensor array and compares the feature with the further parameter in order to verify that said feature corresponds to a region of reduced structural integrity for the structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.