Question

The time constant of a servo control system can be decreased by
1. Decreasing the inertial of the system
2. Decreasing the viscous damping of the system
3. All of these
4. None of these

Answer 1

Correct Answer - Option 2 : Decreasing the viscous damping of the system

• A servo motor is a rotary actuator or a motor that allows for a precise control in terms of the angular position, acceleration, and velocity.
• Basically, it has certain capabilities that a regular motor does not have. Consequently, it makes use of a regular motor and pairs it with a sensor for position feedback.
• The mechanical time constant represents the amount of time for an unloaded motor to rise to 63.2% of its final velocity after application of a command voltage.
• The time constant of a servo control system can be decreased by decreasing the viscous damping of the system.
• The time constant of a servo control system can be increased by decreasing the inertial of the system.