ULTRASONIC DETECTING APPARATUS

摘要

The present invention relates to an ultrasonic detecting apparatus, comprising: an ultrasonic detecting unit having an ultrasonic sensor to detect whether a welded portion on a pipe is defected; a driving unit to move along an outer circumferential surface of the pipe; and an adjusting unit to connect the ultrasonic detecting unit to the driving unit apart from each other, and to adjust a distance between the ultrasonic detecting unit to the driving unit. According to the present invention, the apparatus has the effects of detecting internal defects for the welded portion having a predefined angle to a diametrical direction of the pipe, with the ultrasonic detecting unit having an adjusted distance from the driving unit moving along an outer circumferential surface of the pipe.