This system is specialized in serving bearing production factory about bearing roller flaw automatic testing ,it can also used to test magnetic or nonmagnetic in same dimension,this system can work in both online and offline,the detection sensitivity is high ,the level of automation is great,very easy to operate.equipped with automatic alarm and automatic sorting is the necessary nondestructive testing equipment in bearing production factory. This system adopts high stability eddy current flaw detector ,fixed balanced probes.workpiece automatic spiral forward,it can do nondestructive test on workpiece surface .

This method is not adopt any coupling agent ,the probe and workpiece is going to test without touching. Hence it will never pollute and damage the surface of workpiece .the eddy current  flaw detection produces high frequency can sense eddy current  by testing probe on workpiece surface,the eddy current produces high frequency magnetic field in turn affect probe impedance. Once the workpiece surface find flaw, and destroy original eddy current field,it will cause the changes of probe impedance,instrument measuring the change of probe impedance so as to realize flaw testing automatically. 

The instrument is set with power regulation.sensitivity regulation and phase position regulation as well as impedance balance regulation rotary knob,so it can be adapt to every kind of dimension.the instrument also has fluorescent oscilloscope screen to display waveform and flaw echo,acoustic alarm can realize automatic alarm and monitor on excessive defects。Mechanical part uses vibrating disk feed mechanism,make sure workpiece enters into inspecting area automatically.

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