Patent ID: 8138601

Claim:
An ultrasonic measuring method comprising: receiving, at an ultrasonic probe, waveform signals of ultrasonic waves transmitted from the ultrasonic probe and reflected from a plurality of interfaces in a measurement object; detecting, by a calculation unit, a waveform signal of a reflected wave on a reference interface in the measurement object based on amplitudes of the waveform signals received at the ultrasonic probe; adjusting a position of the ultrasonic probe, based on a received waveform signal, with the ultrasonic probe and the measurement object being moved toward each other; and measuring, by the calculation unit, an interface to be measured of the measurement object, the interface to be measured being specified with the waveform signal of the reflected wave on the reference interface set as an origin, wherein the adjusting the position of the ultrasonic probe is performed after the detecting the waveform signal and before the measuring the interface to be measured of the measurement object.