Electronic shearography apparatus for producing animation of shearogram images
US6433874B1 · kind B1 · utility
10Cited by
19References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2001 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Apr 16, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/162
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to an apparatus for performing electronic shearography on a test object, especially a tire or retread tire. The apparatus uses a laser light source to illuminate the test object. An optical element through which electromagnetic radiation is reflected from the test object is transmitted and forms a random interference image. The random interference image is electronically processed to provide a video animation of the effects of stress on the test object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.