Eddy current array configuration with reduced length and thickness
US8816680B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 2013 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Aug 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/9006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention herein disclosed provides a 2D coil and a method of using the 2D wound EC sensor for reproducing the Eddy Current Testing (ECT) response of a prior art 3D orthogonal sensor. The resulting thin-film eddy current array of coils configured to be placed parallel and against the test surface, and a corresponding eddy current circuitry operable to excite and receive eddy current from the array of coils. The array of coils forming at least a first inspection channel and a second inspection channel. The eddy current circuitry is configured and operable in a way that the one of the first pair of driver coils is usable as one of the second pair of driver coils; and one of the first pair of receiver coils is useable as one the second pair of receiver coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.