Aiming at the problem that using current dynamic torque sensor is inconvenient

a kind of coupling torque sensor based on spokes-structure is designed.The overall design scheme and the structure of the sensor are described.By analyzing the stress of the elastic component of the sensor

the equations between the stress and torque is drawn.The elastic material and process technique are determined and static calibration is carried out.Experimental test show that the linearity is 0.55 %

hysteresis is 0.54 % and sensitivity is 1.019 5 mV / V.