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

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- 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
![Results of phased array imaging and TR-MUSIC imaging[14]. (a) Phased array imaging; (b) TR-MUSIC imaging](/Images/icon/loading.gif)
Fig. 6. Results of phased array imaging and TR-MUSIC imaging[14]. (a) Phased array imaging; (b) TR-MUSIC imaging
![Comparison of imaging results[23]. (a) Imaging of TRIS; (b) imaging of traditional TR](/Images/icon/loading.gif)
Fig. 7. Comparison of imaging results[23]. (a) Imaging of TRIS; (b) imaging of traditional TR
![Imaging comparison of three algorithms[29]](/Images/icon/loading.gif)
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
![Laser ultrasonic detection principle for rail[48]](/Images/icon/loading.gif)
Fig. 12. Laser ultrasonic detection principle for rail[48]
![Variation of velocity with the temperature[52]. (a) Velocity of longitudinal wave; (b) velocity of transverse wave](/Images/icon/loading.gif)
Fig. 13. Variation of velocity with the temperature[52]. (a) Velocity of longitudinal wave; (b) velocity of transverse wave
![Laser ultrasonic through air and water[55]](/Images/icon/loading.gif)
Fig. 14. Laser ultrasonic through air and water[55]

Fig. 15. OmniScan X3 device

Fig. 16. A1040MIRA device
![Laser ultrasonic visualizing inspector[61]](/Images/icon/loading.gif)
Fig. 17. Laser ultrasonic visualizing inspector[61]
![Diagram of visualization principle of laser ultrasonic visualizing inspector [61]](/Images/icon/loading.gif)
Fig. 18. Diagram of visualization principle of laser ultrasonic visualizing inspector [61]

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