Method for in-situ eddy current inspection of coated components in turbine engines
US6707297B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2002 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Jun 7, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/9046
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for in-situ eddy current inspection of at least one coated component includes applying a drive pulse at a measurement position on an outer surface of the coated component, while the coated component is installed in an operational environment of the coated component. The coated component includes a base metal and a coating disposed on the base metal. The method further includes receiving a response signal from the coated component, comparing the response signal with a reference signal to obtain a compared signal, analyzing the compared signal for crack detection, and determining whether a crack near the measurement position has penetrated into the base metal, if the presence of the crack in the coating is indicated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.