Servo motor

Ishaan is working on a project to automate the movement of a satellite dish. What is a servo motor primarily used for in this context?

• Military applications

• Metal cutting and forming machines

• Antenna positioning systems

• Industrial and commercial applications

Ishaan is working on a project to build a robotic arm. He needs to understand the main components of a servo motor to ensure precise control. What are the main components of a servo motor?

• Control circuit, servo motor, shaft, amplifier, and encoder

• Control circuit, servo motor, shaft, amplifier, and resolver

• Control circuit, servo motor, shaft, amplifier, and sensor

• Control circuit, servo motor, shaft, amplifier, and gear system

Amelia is working on a robotics project and needs to choose a motor for precise control in her servo application. Which type of motor is more commonly used in servo applications?

• AC servo motor

• DC servo motor

• Brushed servo motor

• Brushless servo motor

What determines the speed of a DC motor?

• Supply voltage
• Frequency of the applied voltage
• Number of magnetic poles
• Feedback signal sensor

What is a commutator used for in a DC motor?

• To reverse the current direction between the rotor and the drive circuit
• To produce a rotating magnetic field
• To induce current in the rotor conductors
• To provide positional feedback

Aarav is working on a project involving electric motors. He needs to choose between synchronous and asynchronous AC motors. What is the main difference between them?

• Synchronous motors have a permanent magnet rotor, while asynchronous motors have an induced current rotor

• Synchronous motors have a rotating magnetic field that matches the stator's speed, while asynchronous motors have a slower rotor speed

• Synchronous motors use brushes for commutation, while asynchronous motors use electronic means

• Synchronous motors are more efficient due to the absence of rotor current, while asynchronous motors require rotor current

How does a potentiometer control the speed of a DC motor?

• By producing a voltage corresponding to the absolute angle of the motor shaft
• By applying a control pulse to produce a DC reference voltage
• By generating pulses in terms of duty cycles for digital control
• By producing a voltage that is applied as an input to the error amplifier

Muhammad is working on a robotics project and needs to understand the purpose of an encoder in an AC servo motor. What is the purpose of an encoder in an AC servo motor?

• To provide feedback to the servo motor controller

• To control the rotational or linear speed and position

• To produce a rotating magnetic field

• To induce current in the rotor conductors

Lily is working on a robotics project and needs to choose a servo motor for her design. Which type of servo motor has a higher efficiency due to the absence of rotor current?

• AC synchronous servo motor

• AC asynchronous servo motor

• DC brushed servo motor

• DC brushless servo motor

What is the purpose of a pulse width voltage converter in a servo motor control circuit?

• To produce a desired voltage for precise speed or position control
• To compare the feedback voltage with the desired position of the motor
• To apply an error voltage to the motor armature
• To generate pulses in terms of duty cycles for digital control