Fig. 1. Detection of optical path. (a) Shearing speckle pattern interferometry; (b) infrared thermography

Fig. 2. Composite nondestructive testing optical path

Fig. 3. Composite nondestructive testing experimental system. (a) Panorama; (b) partial diagram of shearing optical path

Fig. 4. Wind turbine blade detection experiment. (a) Physical image; (b) infrared image; (c) phase difference image

Fig. 5. Carbon fiber honeycomb panel detection experiment. (a) Physical image; (b) infrared image; (c) phase difference image

Fig. 6. Detection experiment of aluminum skin honeycomb structure panel. (a) Physical image; (b) infrared image; (c) phase difference image