Ultrasonic crack sizing method
US5125272A · kind A · utility
7Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1989 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | Mar 16, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/044
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic tip diffraction technique for determining the depth of a surface-opening crack is disclosed. Longitudinal ultrasonic waves are transmitted parallel to and along the crack and measurement of the time of travel of the waves diffracted at the tip of the crack is employed to determine the depth of the crack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.