Abstract
Based on laser optics, speckle interferometry is sensitive to very small changes in displacement or deformation. Electronic speckle pattern interferometry (ESPI) combines optics and electronics together to provide full-field observation and analysis with accuracy and sensitivity in a sub-micron range. As a state-of-the-art non-destructive testing/evaluation technology (NDT/NDE), electronic speckle pattern interferometry (ESPI) was successfully used to detect very small cracks in concrete. The fast image processing made it possible to conduct real-time testing on concrete structures. The laboratory experiments have also shown that it is possible to bring the ESPI technology to field applications, such as NDE of aging airport pavements, bridges, and other aging infrastructure.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Publisher | Society of Photo-Optical Instrumentation Engineers |
| Pages | 385-391 |
| Number of pages | 7 |
| Volume | 2455 |
| ISBN (Print) | 0819418080 |
| State | Published - Jan 1 1995 |
| Event | Nondestructive Evaluation of Aging Aircraft, Airports, Aerospace Hardware, and Materials - Oakland, CA, USA Duration: Jun 6 1995 → Jun 8 1995 |
Other
| Other | Nondestructive Evaluation of Aging Aircraft, Airports, Aerospace Hardware, and Materials |
|---|---|
| City | Oakland, CA, USA |
| Period | 6/6/95 → 6/8/95 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics