Simulation of U-shaped Eddy-Current Converter of Transformer Type for Defective Monitoring in Ferromagnetic Samples

The results of theoretical researches of construction of a eddy-current defectoscope with a coupled measuring oscillatory circuit with a transformer coupling for the quality monitoring of welding seams of metal products are presented. This device can be used in eddy-current (electromagnetic) defectoscopy for automatic and manual control of metal products in cases where it is difficult to fix the gap between the laying-in eddy-current converter (inductance coil), which contains the measuring oscillatory circuit, and the controlled surface of the ferromagnetic product. The main advantages of using coupling oscillatory circuits in the construction of resonance eddy-current defectoscopes are presented.