Feeding devices of eddy current testing on Titanium Alloy tube

Generally, batch and high speed eddy current detection on Titanium Alloys adopts the feed-though detecting coil. And this detection usually is functioning well on mechanical transmission equipment, so the speed of transmission actuator is required to be stable and the detecting coil must be concentric with the checked tube, otherwise, the accuracy of the detection cannot be guaranteed. This paper mainly introduces the feeding devices which are used in the eddy current detection of titanium alloy tubes including the automatic drag device of tested tubing, centering fixture and clamping device.