Electromagnetic method of testing the wire rope is the most widely practiced nondestructive method of studying the condition of wire rope under in-situ conditions. In this method, wire rope is magnetized using powerful magnets [1, 2]. The magnetic lines of forces travel along the axis of wire rope. If there is a discontinuity, the magnetic lines of forces deviate from their path and there will be a leakage field to the air. Using suitable sensors, leakage fields are detected, recorded and analyzed to identify the type of discontinuity. Fig. 1 shows the schematic layout of the equipment used in electromagnetic testing. faults, which includes broken wire, wear, corrosion, pitting, and inter strand nicking. Inductive coils are used to detect these defects. This is detected by the inner coil of the equipment. • LMA Sensors: LMA means loss of metallic area. Hall sensors are used to measure this parameter. This is detected by the outer coil (Hall sensor) of the equipment.
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