Two Phase AC Servomotor Rotors

A two-phase AC servomotor is a type of motor commonly used in industrial automation applications. The motor consists of a stator and a rotor, both of which have electrical windings. The stator windings are energized with a two-phase AC voltage, which creates a rotating magnetic field that interacts with the magnetic field of the rotor to produce torque.

There are several types of rotors that can be used in a two-phase AC servomotor. These include:

1. Solid Iron Rotor: This type of rotor is made from solid iron and has no electrical windings. It is often used in high-speed applications where a high inertia rotor is required.

2. Squirrel Cage Rotor: This type of rotor is made from conductive bars that are arranged in a cage-like structure. When the stator windings are energized, an induced current flows in the bars, which creates a magnetic field that interacts with the stator field to produce torque. Squirrel cage rotors are commonly used in low-speed applications where a high starting torque is required.

3. Drag Cup Rotor: This type of rotor consists of a cup-shaped structure that is filled with a conductive fluid, such as mercury. When the stator windings are energized, an induced current flows in the fluid, which creates a magnetic field that interacts with the stator field to produce torque. Drag cup rotors are often used in high-precision applications where a smooth and precise motion is required.

The Correct Rotors for Two Phase AC Servomotor

The correct rotors for a two-phase AC servomotor are the Squirrel Cage Rotor and the Drag Cup Rotor. These two rotors are commonly used in industrial automation applications and provide high performance and reliability. The solid iron rotor is not commonly used in two-phase AC servomotors as it does not provide the required electrical properties for these types of motors.