Yonghong Wang, Yanfeng Yao, Junrui Li, Peizheng Yan, Chen Li, Shuangle Wu. Progresses of Shearography: Key Technologies and Applications[J]. Laser & Optoelectronics Progress, 2022, 59(14): 1415004
- Laser & Optoelectronics Progress
- Vol. 59, Issue 14, 1415004 (2022)
![Dynamic shearography measurement system based on slit diaphragm[26]](/richHtml/lop/2022/59/14/1415004/img_01.jpg)
Fig. 1. Dynamic shearography measurement system based on slit diaphragm[26]
![Spatial phase-shift shearography system based on adjustable apertures[28]](/richHtml/lop/2022/59/14/1415004/img_02.jpg)
Fig. 2. Spatial phase-shift shearography system based on adjustable apertures[28]
![Spatial phase-shift measurement based on micro-polarization arrays[30]. (a) Schematic of the measurement system; (b) phase maps after spatiotemporal low-pass filtering](/Images/icon/loading.gif){kind=icon}
Fig. 3. Spatial phase-shift measurement based on micro-polarization arrays[30]. (a) Schematic of the measurement system; (b) phase maps after spatiotemporal low-pass filtering
Fig. 4. Double imaging Mach-Zehnder space carrier shearing system[36]
Fig. 5. Multi-directional shearing Mach-Zehnder interference system[37]
Fig. 6. Schematic of 3D measurement[41]
Fig. 7. Measurement results[41]. (a) In-plane horizontal deformation u; (b) in-plane horizontal deformation gradient
Fig. 8. Schematic of multiplexing measurement based on polarization technology[42]
Fig. 9. Shearography system based on spatial light modulator[44]
Fig. 10. Shearography system based on liquid crystal polarization grating[49]
Fig. 11. Measurement results for mirror[65]. (a) Measurement result for out-of-plane deformation; (b) detection result for internal defect
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