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European Technology has used its aerospace experience to develop a unique and compact system for the ultrasonic inspection of wind turbine blades manufactured using composite materials. Windblast, reports the company, is a fast and reliable system for inspecting the non-flat areas of blades, including the leading and trailing edges. Ultrasonic waves in the MHz range are used to detect defects. Dr Christophe Mattei headed the development team from Bodycote: "Due to their geometry and size, wind turbine blades are difficult to inspect for porosity and delaminations in the skin of the blade, as well as the lack of adhesion to the bonded parts of the wind power blades".
Windblast, Mattei reports, is made up of a motorised scanner with an ultrasonic transducer that moves quickly over the inspection surface. The sensor can be configured for different blade areas and blade shapes.
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