Nondestructive detection of steel surface corrosion
US6411105B1 · kind B1 · utility
6Cited by
7References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 11, 2000 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Oct 21, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N22/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A static DC magnetic field is externally applied to a targeted surface portion of protectively coated steel to vary the amount of microwave energy absorbed therein. Measurements of varying amounts of absorbed microwave energy are compared by coordination with corresponding measurements of the strength of the applied magnetic field varied in response to coating hidden deposit of corrosion products on the targeted surface portion of the steel, to provide a basis for detection of the corrosion involved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.