Factors Affecting the Output Voltage of a Magnetostrictive Tension Sensor Constructed from Ni-Fe Sputtered Films and a Stainless-Steel Shaft.

Abstract

The tension sensor is expected for tension monitoring or control in varies fields. For the tension monitoring of contact line, we are developing a new tension sensor using magnetostrictive film. The sputtering technique was used to prepare Ni-Fe magnetostrictive films on stainless-steel shafts. The factors affecting the output characteristics of the tension sensors are studied as functions of the composition of Ni-Fe films. The sensitivity of tension sensor is proportional to the film thickness. The optimal value of the Ni content in Ni-Fe films was found theoretically and experimentally to realize a maximum sensitivity of tension sensing.