Which classification of motors is designed for precise position control in automation?

Stepper motors are specifically designed for precise position control in automation applications. They operate by dividing a full rotation into a large number of steps, allowing them to be positioned accurately without the need for feedback systems, although feedback can enhance their performance in certain applications. Each step corresponds to a fixed angle of rotation, which allows for highly controlled movement.

In contrast, induction motors mainly operate continuously and are not suitable for applications requiring precise positioning. They rely on rotating magnetic fields to function and generally do not have the capability to start and stop at defined positions without additional control systems.

DC motors can provide variable speed control and direction, but they typically do not offer the same level of precision in positioning as stepper motors unless they are paired with complex control systems.

Universal motors, which can operate on both AC and DC power, are also not designed for precision control in positioning. They are typically used in applications requiring high-speed performance rather than precise movement.

Thus, due to their inherent design and operational characteristics, stepper motors are the most appropriate choice for precise position control in automation.