Penghui Zhang, Yang Zhao, Peng Li, Zhiquan Zhou, Xue Bai, Jian Ma. Research Progress in Ultrasonic Imaging Detection Technology[J]. Laser & Optoelectronics Progress, 2022, 59(2): 0200003
- Laser & Optoelectronics Progress
- Vol. 59, Issue 2, 0200003 (2022)
![Principle of time reversal self-focusing[2]. (a) Single-array emission; (b) multi-array reception; (c) acoustic beam self-focusing](/richHtml/lop/2022/59/2/0200003/img_1.jpg)
Fig. 1. Principle of time reversal self-focusing[2]. (a) Single-array emission; (b) multi-array reception; (c) acoustic beam self-focusing
![Layout of virtual gain time reversal method[9]](/richHtml/lop/2022/59/2/0200003/img_2.jpg)
Fig. 2. Layout of virtual gain time reversal method[9]
Fig. 3. Diagram of ultrasonic scanning imaging
Fig. 4. Diagram of multi-element synthetic aperture focused imaging
Fig. 5. Phased array. (a) Diagram of phased array focusing; (b) diagram of phased array deflection
Fig. 6. Results of phased array imaging and TR-MUSIC imaging[14]. (a) Phased array imaging; (b) TR-MUSIC imaging
Fig. 7. Comparison of imaging results[23]. (a) Imaging of TRIS; (b) imaging of traditional TR
Fig. 8. Imaging comparison of three algorithms[29]
Fig. 9. Numerical simulation of ultrasonic interactions with defects in solids
Fig. 10. Picture of piezoelectric transducer
Fig. 11. Diagram of laser ultrasound in solids. (a) Thermoelastic mechanism; (b) ablation mechanism
Fig. 12. Laser ultrasonic detection principle for rail[48]
Fig. 13. Variation of velocity with the temperature[52]. (a) Velocity of longitudinal wave; (b) velocity of transverse wave
Fig. 14. Laser ultrasonic through air and water［55］
Fig. 15. OmniScan X3 device
Fig. 16. A1040MIRA device
Fig. 17. Laser ultrasonic visualizing inspector[61]
Fig. 18. Diagram of visualization principle of laser ultrasonic visualizing inspector [61]
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