Shearography from a moving platform
US8804132B1 · kind B1 · utility
7Cited by
3References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 2012 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Mar 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/162
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A shearography system that operates while moving at significant speeds over a surface is disclosed. Two lasers are utilized and the distance between the two lasers is adjusted based on the altitude of the aircraft on which the shearography equipment is located, the speed of the aircraft, the distance between two lasers in the shearography equipment lasers, and the time difference between the laser pulses from each of the two lasers. The adjustment of the distance between the two lasers causes the angles of incidence and reflection to be the same for two sequential images and permits the moving shearography to work.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.