ULTRASONIC MEASUREMENT DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an ultrasonic measurement device capable of measuring with an ultrasonic probe even for a small pipe diameter without correction of center distance for every pipe diameter. SOLUTION: The ultrasonic measurement device for measuring the damaged state by moving the plurality of ultrasonic probes 11-22 along the circumferential direction of the tube 23 comprises: the master truck 43 provided with the truck frame 26 with a central space K; the front and rear rotation shafts 29 and 30 provided with the respective rotation adjusting mechanisms 27 and 28 provided at the rear and back of the truck frame 26; the front rotation frame 35 provided with the left and right symmetric front wheels 33 and 34; the rear turning frame 40 provided with the left and right symmetric rear wheels 38 and 39 at the tips of the same and the base fixed to the both side of the rear turning shaft 30; and the permanent magnets 41 and 42 provided with a gap G between the bottom of the front turning frame 35 and the rear turning frame 40 and the pipe 23. COPYRIGHT: (C)2006,JPO&NCIPI