Nondestructive detection of dimensional changes in a substrate using subsurface markers
US9453727B1 · kind B1 · utility
1Cited by
8References
20Claims
0Family size
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Key dates
| Filing date | Aug 3, 2015 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Aug 3, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B21/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method, including: detecting in a nondestructive manner a marker (10, 12, 50, 70, 76, 78) that is fully submerged in a substrate (14) to obtain spatial information about the marker; detecting in a nondestructive manner the marker after a period of time to obtain a change in the spatial information; and using the change in the spatial information to determine a change in a dimension (30) of the substrate. The method may be used to measure creep in a gas turbine engine component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.