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Company news about Integration of stepper motor and sensor: achieving more precise motion control.

Integration of stepper motor and sensor: achieving more precise motion control.

2024-10-24
Latest company news about Integration of stepper motor and sensor: achieving more precise motion control.

    Stepper motors are widely used in many fields due to their advantages of simple control and low cost. However, stepper motors themselves have limitations in open-loop control, which can easily lead to problems such as step loss and insufficient accuracy. To overcome these limitations, integrating stepper motors with sensors and constructing a closed-loop control system has become an effective way to achieve more precise motion control.

 

    The advantages brought by sensor fusion:

    Improve accuracy: Sensors can monitor the actual position, speed, and other information of stepper motors in real time, and provide feedback to the control system for adjustment, effectively avoiding step loss and significantly improving motion accuracy.

    Enhanced reliability: Sensors can monitor the working status of motors, promptly detect abnormal situations such as overload, locked rotor, etc., and take protective measures to improve the reliability and stability of the system.

    Realize more complex control: Sensor fusion can achieve more complex motion control, such as trajectory tracking, torque control, etc., expanding the application range of stepper motors.

 

    Common sensor types:

    Encoder: used to measure the angle or displacement of motor rotation, providing high-precision positioning information.

    Proximity sensor: used to detect the proximity of objects and can be used for functions such as limiting and counting.

    Force sensor: used to measure the output force or torque of a motor, achieve torque control, such as controlling the gripping force when a robotic arm grabs an object.

    Visual sensor: Obtaining position, direction, and other information through image recognition technology to achieve visual guidance for motion control.

 

    The implementation method of sensor fusion:

    Hardware closed-loop: The sensor signal is directly fed back to the stepper motor driver, and closed-loop control is achieved through hardware circuits. This method has a fast response speed, but the cost is relatively high.

    Software closed-loop: By reading sensor data through a microcontroller or PLC, running control algorithms, adjusting motor control signals, and achieving closed-loop control. This method has low cost and high flexibility, but requires high requirements for control algorithms and software design.

 

    Application case:

    Robot: Using stepper motors and encoders in robot joints to achieve precise control of joints and complete complex actions.

    Numerical Control Machine Tool: Utilizing stepper motors and grating rulers to achieve high-precision feed control and improve machining accuracy.

    3D printer: By using stepper motors and proximity sensors, the precise movement of the print head is controlled to ensure printing quality.

 

 

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