A new method for M–H and λ–H determination using the magnetostrictive delay line technique

In this paper, a new technique for the determination of M–H loop and λ–H loop is proposed, based on the magnetostrictive delay line (MDL) technique and used for long magnetostrictive ribbons, wires and rods of uniform cross-section. The principle of the M–H loop determination is based on the biasing field effect at the MDL search coil, while the principle of the λ–H loop is based on the biasing and pulsed field effects at the MDL excitation point.