Apparatus for the nondestructive testing of elongated test specimens by magnetic techniques

摘要

The devices for holding down a speciman to be tested are arranged on the same side of the tube as the transducer, without the tube movement being obstructed. The holding down devices may be arranged directly opposite to the rotation devices, or optionally in the immediate neighborhood thereof. Bending of the tube due to the holding devices does not occur even where relatively large pressing forces are used.