Effect of Tensile Force on Magnetostrictive Sensors for Generating and Receiving Longitudinal Mode Guided Waves in Steel Wires

Figure 9

The magnetostrictive coupling coefficient curves at the transmitting side (the current of the magnetizing coil at receiving side is fixed on 7 A) and the receiving side (the current of the magnetizing coil at transmitting side is fixed on 7 A) at the unloaded wire.