Eddy current testing apparatus and eddy current testing method
US7872472B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 9, 2009 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Dec 9, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/902
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An eddy current testing method for a turbine rotor including a disc, a plurality of turbine blades disposed along the periphery of the disc, and a plurality of pins for joining a blade fork portion formed on each of the plurality of turbine blades to a disc fork portion formed on the disc, the method including inserting a probe having an eddy current testing sensor into a hole formed through the disc fork portion and the blade fork portion by pulling out one of the plurality of pins in a state that the blade fork portion is still inserted into the disc fork portion; and performing eddy current testing for at least part of an internal surface of the hole by using the probe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.