Ultrasonic non-destructing testing in air: Contact-free material diagnostic method without surface contamination

Fraunhofer Institute of Non-Destructing Testing Methods - IZFP is the leading German center for applied researches in the field of air contact-free material diagnostic. Usage of this non-destructing control method made it possible contact-free penetration inside material with high resolution of defect revealing and without superficial contamination. Additionally, it is possible to control strongly absorbing materials, such as hybrid materials. The developed control technique is described in this paper, its advantages are illustrated by examples. Individual design of a non-destructing sensor is presented.