Method for remotely inspecting solid structures for discontinuities utilizing laser techniques
US4723448A · kind A · utility
13Cited by
1References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1986 |
| Grant date | Feb 9, 1988 |
| Priority date | — |
| Expiry date | Jul 11, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N29/2418
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for remotely inspecting solid structures for discontinuities other than surface imperfections is disclosed. The method comprises vibrating a solid structure to be inspected while utilizing a laser radar doppler receiver to generate a doppler shifted heterodyne signal resulting from detecting the vibrational frequency of a portion of the solid structure to be inspected. The doppler shifted signal is monitored while scanning the surface of the solid structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.