Abstract
The principles of laser ultrasonic generation and measurements with pulsed laser are presented. There are two kinds of means to actuate ultrasonic pulse: elasticity actuating and ablation actuating. The progress in laser ultrasonic about laser ultrasound generation, detection, propagation and its applications is introduced briefly. Applications in the field of Non-Destructive Testing (NDT) are reviewed. In the field of Non-Destructive Testing, according to the principle, the laser ultrasonic testing system consists of laser system, laser interferometer, photoelectric detector and receiving system with signal amplifier. Thus, long-range and non-contact on-line detection of ultrasonic testing system was realized. In view of some of the problems, the developing trends of such techniques are analyzed.
| Original language | English |
|---|---|
| Article number | 58 |
| Pages (from-to) | 369-372 |
| Number of pages | 4 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5629 |
| DOIs | |
| State | Published - 2005 |
| Event | Lasers in Material Processing and Manufacturing II - Beijing, China Duration: 10 Nov 2004 → 12 Nov 2004 |
Keywords
- Laser ultrasonic technique
- Non-destructive testing
- Ultrasonic generation with a pulsed laser
- Ultrasonic measurement with a pulsed laser