Defocus generation method for measuring the thickness of surface-hardened layers by a laser ultrasonic technique.
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DOI: 10.1364/ao.452042
Abstract: We developed a noncontact inspection method for measuring the thickness of surface-hardened layers using a laser ultrasonic technique in which a laser beam for generating ultrasonic surface waves was defocused on a specimen. Our method… read more here.
Keywords: surface; hardened layers; generation; measuring thickness ... See more keywords