Torque transducers with stress-sensitive amorphous ribbons of chevron-pattern

In this paper, a simplified assembling method is presented by which a reliable and compact torque transducer exhibiting wide dynamic range and good linearity is obtained. The only modification applied to the shaft to obtain the torque transducer is to glue several pairs of stress-sensitive amorphous ribbons of rectangular form or of parallelogram form to the shaft in a chevron-pattern. Experiments are carried out on torque transducers with the nonmagnetic torsion bar to comfirm the theoretical prediction and with the magnetic steel torsion bar to examine the output characteristics and the dynamic response.