A Barkhausen noise continuous welded rail stress detector has been developed based on the magnetic Barkhausen effect.This detector can be used to detect the internal stress,skin hardness and fatigue damage of ferromagnetic materials,and results can be obtained instantaneously by using this portable equipment on site.Using a public works section of the continuous welded rail in the Fengtai district of Beijing as an example,the Barkhausen noise stress detector was used to detect the buffer zone,the stretch zo...
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