Abstract
Considering several typical planar defects that were common flaws in thick aluminum weld, the characteristics of Ultrasonic TOFD (time of flight diffraction) was studied. Ultrasonic TOFD A-scan signal and B, D-scan image were analyzed and interpreted. Linearization was introduced in processing B and D-scan image. The results show that planar defect can be effectively recognized, located and sized by the characteristics of the received signal and image. Linearization effectively improves time resolution of the received images, which makes the characteristics of the defect more markedly and leads to more accurate quantitative measurement.
| Original language | English |
|---|---|
| Pages (from-to) | 1-4 |
| Number of pages | 4 |
| Journal | Hanjie Xuebao/Transactions of the China Welding Institution |
| Volume | 26 |
| Issue number | 11 |
| State | Published - Nov 2005 |
Keywords
- Characteristic and recognition
- Linearization
- Planar defect
- Ultrasonic TOFD
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