Magnetoelastic torque sensors with amorphous ring core.

This paper presents new type of magnetoelastic torque sensors. In this sensors the amorphous ring cores were applied as sensing elements. The ring cores were in as-quenched state and after thermal relaxation. For the investigation three type of tape were used, iron based (Fe78B13Si9), nickel based (Fe40Ni38Mo4B18) and Finemet (Fe73.5Si13.5Nb3Cu1B9). Sensor investigation indicate interesting properties and high sensitivity. Results prove that the thermal relaxation is necessary and select the best compose of ring core. [ABSTRACT FROM AUTHOR]