Abstract
Collapse of delaminated tiles on the wall of buildings causes serious problems and nondestructive evaluation (NDE) methods are demanded for it. We developed a new technique for the real-time imaging by using the photorefractive effect. Though the vibration amplitude was as small as 1.5nm in the frequency range of 1 to 100 kHz, and the laser power is low (4.2μW for the signal beam and 303μW for the reference beam), the vibration mode was imaged with the signal-to noise (S/N) ratio better than 10 in the short exposure time of 200 ms.
| Original language | English |
|---|---|
| Pages (from-to) | 969-974 |
| Number of pages | 6 |
| Journal | Key Engineering Materials |
| Volume | 261-263 |
| Issue number | II |
| Publication status | Published - 2004 Jan 1 |
| Event | Advances in Fracture and Failure Prevention: Proceedings of the Fifth International Conference on Fracture and Strength of Solids (FEOFS2003): Second International Conference on Physics and Chemistry of Fracture and Failure Prevention (2nd ICPCF) - Sendai, Japan Duration: 2003 Oct 20 → 2003 Oct 22 |
Keywords
- Holography
- Nondestructive evaluation
- Photorefractive effect
- Piezoelectric transducer
- Tiles
- Vibration
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering