Root canal motor detection structure and method

The invention relates to a root canal motor detection structure and method, and belongs to the technical field of root canal preparation machines, the root canal motor detection structure comprises a root canal head, one end of the root canal head is provided with a handheld part, the handheld part is internally provided with a motor, the motor is arranged in the handheld part of the root canal preparation machine, the output end of the motor is provided with a reduction gearbox, and the reduction gearbox is connected with the root canal head. The magnetic pole of the reduction gearbox faces the root canal head, and the motor is electrically connected with a controller. The operation module is used for adjusting the duty ratio of the motor so as to change the rotating speed and the torque of the motor; the calculation module is used for calculating a target PWM signal of the current preset rotating speed of the motor; and the detection module is used for obtaining the actual electrical angle value and the act