Pipe condition detecting apparatus
US6967478B2 · kind B2 · utility
20Cited by
13References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 2002 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Jun 6, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/82
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to apparatus and a method for detecting the condition of the material of a pipeline wall. The apparatus includes means for inducing and detecting magnetic flux at a location on the pipeline and, at said location, sensing means detect whether any change in material condition is on or near the external wall of the pipeline. By analysing the two sets of monitored values a change in condition, such as corrosion, can be detected, located and determined to be at or near the external or internal surfaces of the pipeline wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.