Aimed at problems of dynamic measurement of mechanical spindle torque in extreme environments

the principle of electromagnetic induction is used.A special ring-space array and a magnetic-electric detector is used to compose a new type of non-contact torque sensor.By analyzing the measurement principle of the torque sensor

a mathematical model of dynamic torque measurement is established and a corresponding measurement system is designed.The modeling is set up and electromagnetic analysis of the sensor is carried out with ANSYS.The initial torque experiment showed that the minimum measurable torsion angle of the system is less than ±0.01°.It can meet dynamic measurement of mechanical spindle torque in extreme environments

and has high precision.