Abstract
In accordance to the testing requirement of the flaws on rail tread, the laser-electro magnetic acoustic (EMA) testing system based on fiber conduction is established to test the flaws on rail tread. The system can generate ultrasonic surface wave on rail tread by laser pulse. It is known that shear wave component which can be received by EMA technology can be produced due to the mode conversion when the ultrasonic surface wave is transmitted through the surface crack. The system can precisely test the flaws by inspecting the rail. The experimental research shows that this system can effectively test the flaws on rail tread, and has advantages of non-contact, flexible structure and high sensitivity.
| Original language | English |
|---|---|
| Pages (from-to) | 1176-1180 |
| Number of pages | 5 |
| Journal | Guangdianzi Jiguang/Journal of Optoelectronics Laser |
| Volume | 27 |
| Issue number | 11 |
| DOIs | |
| State | Published - 15 Nov 2016 |
| Externally published | Yes |
Keywords
- Fiber conduction
- Laser-electro magnetic acoustic (EMA)
- Rail
- Tread flaws
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