Rotary transformer and ultrasonic flaw detector for ultrasonic flaw detector

摘要

The first one-turn coils (12a) to (12d) are concentrically formed on the first plane (11a), and the first floating conductor (13) is formed on the second plane (11b). A fixed body (5) having a first substrate (11) and a first holding member (14) holding the first substrate (11) so as to surround the first floating conductor (13); The second 1-turn coils (22a) to (22d) are concentrically formed on the third plane (21a) so as to face the first 1-turn coils (12a) to (12d), respectively. A second substrate (21) having two second floating conductors (23) formed on a fourth plane (21b), and holding the second substrate (21) so as to surround the second floating conductor (23) The second holding member (24) and the second one-turn coils (22a) to (22d). An ultrasonic probe (32a) to (32d) connected to each, and a second substrate (21), a second holding member (24), and an ultrasonic probe (32a) to. The rotary transformer (1) was configured so that (32d) and the rotating body (6) that rotates around the material to be inspected (7).