Shearography is extensively used in production and development in aerospace,[2] wind rotor blades, automotive, and materials research areas.
When a surface area is illuminated with a highly coherent laser light, a stochastical interference pattern is created.
This contains a stepping mirror that shifts the reference beam, which is then processed with a best fit-algorithm and presents the information in real time.
The main applications are in composite nondestructive testing, where typical flaws are: Disbonds, Delaminations, Wrinkles, Porosity, Foreign objects, and Impact damages.
Industries where Shearography is used are: Aerospace, Space, Boats, Wind power, Automotive, Tires, and Art conservation.