Ihi Corporation

Seiichi Ohmori

Masahiro Hato

Tomohiko Shiota

Provided is a thickness measurement device, including: an ultrasonic transmitter configured to transmit ultrasonic waves to a measurement object; an ultrasonic receiver configured to receive the ultrasonic waves reflected by the measurement object; a first extraction unit configured to extract a first reflected wave reflected by a first surface in the measurement object; a second extraction unit configured to extract a plurality of candidates for a second reflected wave reflected by a second surface in the measurement object; a matching degree calculation unit configured to calculate a matching degree between the first reflected wave and each of the plurality of candidates, for the each of the plurality of candidates; a candidate determination unit configured to determine, from the plurality of candidates, a candidate having the largest matching degree as the second reflected wave; and a thickness calculation unit configured to calculate a thickness of the measurement object.

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Tokyo, Japan

Seiichi Ohmori