FLAW DETECTION TESTER, FLAW DETECTION TESTING METHOD AND SHEET MEMBER FOR FLAW DETECTION TEST

摘要

PROBLEM TO BE SOLVED: To increase searchable depth in a flaw detection test and to enhance working efficiency by reducing the effect due to the surface unevenness of an object to be inspected. SOLUTION: In the flaw detection test for detecting the discontinuous part of a reinforcing rod 8 covered with concrete, the surface of a concrete pole 7 is covered with a measuring sheet 11 having a smooth surface and an I-shaped sensor 1, which excites a magnetic field so as to be possible to arrive at the reinforcing rod 8, is brought into contact with the surface of the measuring sheet 11 to be moved along the surface of the measuring sheet 11 while detecting a change in the magnetic field.