Abstract
Acoustic Emission (AE) technology is an effective nondestructive testing for continuous monitoring of defect formation and failures in structural materials. This paper presents a source location model using Acoustic Emission (AE) sensors in a Pre-Stressed Concrete (PSC) beam and the evaluation of the model was performed through lab experiments. 54 AE events were made on the surface of the 5 m-PSC beam using a Schmidt Hammer and arrival times were measured with 7 AE sensors. The source location for each event was estimated using least squares. The results were compared with actual positions and the RMSE (Root Mean Square Errors) was about 2 cm.
| Original language | English |
|---|---|
| Pages (from-to) | 271-279 |
| Number of pages | 9 |
| Journal | Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography |
| Volume | 24 |
| Issue number | 3 |
| State | Published - 31 Aug 2006 |
Keywords
- Acoustic emission
- Least squares
- PSC
- Source location