The Influence of Excitation and Detection Methods in Laser-Ultrasonics on Precise Material Characterization

Konferenz: Sensoren und Messsysteme - 19. ITG/GMA-Fachtagung
26.06.2018 - 27.06.2018 in Nürnberg, Deutschland

Tagungsband: ITG-Fb. 281: Sensoren und Messsysteme

Seiten: 4Sprache: EnglischTyp: PDF

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Singer, Ferdinand; Kufner, Maria; Drese, Klaus (Institute of Sensor- and Actuator Technology, 96450 Coburg, Am Hofbräuhaus 1b, Germany)

Laser-Ultrasonics has become a versatile tool for material characterization, which enables the determination of various material properties. Suitable combinations of excitation and detection schemes together with advanced analysis methods allow the characterization of minute material changes in industrial processes. Because there are many degrees of freedom regarding the Laser-Ultrasonic source and detection schemes, like different laser spot geometries or laser parameters, the influence of the excitation/detection combination needs to be precisely analysed before measurements can be evaluated.