Yang-yang LI, Si-jin WU, Wei-xian LI, Ming-li DONG. Simultaneous Measurement of Displacement and Slope with Dual-function Digital Speckle Pattern Interferometry[J]. Acta Photonica Sinica, 2020, 49(6): 0612002
- Acta Photonica Sinica
- Vol. 49, Issue 6, 0612002 (2020)
Fig. 1. Optical setup of dual-function digital speckle pattern interferometry system
Fig. 2. The round metal sheet under test (left: side view; right: front view)
Fig. 3. Phase maps corresponding to the out-of-plane displacement and slope of the round metal sheet
Fig. 4. Three-dimensional height maps for out-of-plane displacement and slope
Fig. 5. Height map for the calculated slope
Fig. 6. Comparison of slopes obtained by experiment and calculation
Fig. 7. Composite structure with defects
Fig. 8. Non-destructive testing of a honeycomb plate under thermal loading
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