Which type of motor is typically used in robotic applications for precise movement?

The stepper motor is commonly used in robotic applications for precise movement due to its unique design that allows it to divide a full rotation into a specific number of steps. This capability is crucial in robotics, where accurate positioning and repeatability are essential for tasks such as picking, placing, or adjusting components.

Stepper motors operate by energizing different phases in a sequence, which moves the rotor in precise increments. This allows for accurate control of the angle and distance moved, providing a high level of repeatability and torque at low speeds.

In contrast, while DC motors can offer good speed control, they lack the precise positioning capabilities that stepper motors provide without the use of additional encoders. Induction motors, on the other hand, are more suited for applications requiring constant speed and are less precise in positioning. Synchronous motors are generally used in applications requiring high speed and stability but do not provide the incremental movement control needed in robotic tasks.

Thus, the stepper motor’s ability to achieve precise movements makes it the preferred choice in robotic applications.