1. Causes of accumulated errors of stepper motors

The stepper motor is composed of two parts: a controller and a motor. Its working principle is to make the motor run sequentially through controller instructions to achieve precise position control. However, due to the particularity of the structure and control method of the stepper motor, accumulated errors are prone to occur. This error is mainly caused by the following reasons:

1.1 The positioning accuracy of the motor itself is limited.

1.2 Due to factors such as mechanical interfaces and transmission links, there may be certain deviations in the rotation angle of the motor.

1.3 There may be certain errors in the accuracy of the controller instructions, and these errors will be gradually accumulated, resulting in serious accumulated errors in the stepper motor.

2. Solutions to the accumulated error of stepper motors

In order to solve the problem of accumulated error of stepper motors, we can take the following measures:

2.1 Optimize the motor structure and transmission link to improve the motor rotation accuracy and reduce errors.

2.2 Strengthen the precision control of controller instructions and adopt more precise control technology to reduce the accumulation of errors.

2.3 Use different control strategies, such as bias control, feedback control, model predictive control, etc. These control strategies can effectively reduce the accumulated error of the stepper motor and improve the accuracy and stability of the stepper motor.

2.4 When using a stepper motor, periodic error calibration can be performed through return-to-origin calibration and other methods. This method can help us discover and correct the errors of the stepper motor in time, thereby ensuring its good working effect.

In short, for the problem of accumulated errors in stepper motors, we need to comprehensively consider factors such as motor structure and controller technology, and take appropriate measures to avoid the generation and accumulation of errors, thereby ensuring the accuracy and stability of stepper motors.