G. Kaniak, W. Rohringer, M. Brauns, Nils Panzer, F. Lücking, B. Fischer, S. Brand, C. Große
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Enhanced non-contact ultrasonic testing using an air-coupled optical microphone
In this paper three case studies of the application of a compact non-contact, non-destructive setup are presented. The herein employed method is based on the air-coupled detection of acoustic waves in the frequency range up to 2 MHz.