Crack orientation determination and detection using horizontally polarized shear waves
US5383365A · kind A · utility
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10References
8Claims
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Key dates
| Filing date | Sep 17, 1992 |
| Grant date | Jan 24, 1995 |
| Priority date | — |
| Expiry date | Sep 17, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/101
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The presence of a crack in a material and the orientation of the crack is determined by placing a transducer on the surface of the material for propagating a shear wave for reflection off of the back wall of the material. The reflected signal is evaluated such that no signal or a weak signal indicates the presence of a crack. The transducer is then held in place and rotated while propagating a shear wave in order to determine the orientation of the crack. The reflected shear wave is then evaluated in the same manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.