Review Flashcards
What is the primary goal of a control system?
To control the system’s output
Other goals may include maintaining stability, designing complex systems, and minimizing cost.
Which of the following is a type of feedback control system?
Closed-loop control system
Open-loop control systems do not use feedback.
What is NOT an example of a control system?
Radio receiver
Examples of control systems include a thermostat controlling temperature and a car’s cruise control system.
What is the main difference between an open-loop control system and a closed-loop control system?
Open-loop control systems do not use feedback; closed-loop systems use feedback.
Open-loop systems typically require fewer components.
What is the transfer function of a system?
The mathematical representation of the system’s output in terms of input
It can also be viewed as the ratio of the system’s output to input in the time domain.
What is a key advantage of a closed-loop control system?
Can correct errors and disturbances automatically
Closed-loop systems are generally more reliable than open-loop systems.
Which of the following is true about an open-loop control system?
It requires no feedback to operate
Open-loop systems do not adjust automatically to disturbances.
What is the Laplace transform used for in control systems?
To convert the system’s time-domain equations to frequency-domain
This is essential for analyzing system behavior in control theory.
In a control system, what does the ‘error signal’ represent?
The difference between the desired output and the actual output
This signal is crucial for feedback control to minimize errors.
Which of the following components is essential for a feedback control system to function?
A sensor to measure the output
Actuators and feedback signals are also vital components in feedback control systems.
