Actuators and Motion
Actuators serve as the integral components that transform electrical signals into physical movement in robotic systems. This chapter covers various actuator types, including DC motors, servo motors, stepper motors, and the principles behind their operation. Key highlights include mobility systems designed for different terrains and the role of controllers and feedback systems in enhancing motion accuracy.
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5.4.2Example: Controlling A Dc Motor With Pwm
What we have learnt
- Actuators convert electrical signals into mechanical movement.
- Different types of actuators include DC motors, servos, stepper motors, and linear actuators.
- Mobility systems can be wheeled, legged, or tracked, each suited for specific applications.
- Control systems involving drivers and feedback mechanisms improve motion accuracy.
Key Concepts
- -- Actuator
- A device that converts electrical signals into mechanical movement.
- -- DC Motor
- An actuator that provides continuous rotation at variable speeds, commonly used for moving robot wheels and arms.
- -- Servo Motor
- An actuator that rotates to a specific angle, used in applications requiring precision like robotic arms.
- -- Stepper Motor
- An actuator that moves in defined steps, often used in 3D printers and CNC machines.
- -- Linear Actuator
- A device that converts rotational motion into linear movement, used in lifting platforms.
- -- PID Control
- A control loop feedback mechanism that continuously calculates an error value and applies a correction based on proportional, integral, and derivative terms.
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