What is an essential advantage of a closed-loop system compared to an open-loop system?

The essential advantage of a closed-loop system lies in its ability to adjust based on output. Closed-loop systems utilize feedback mechanisms to monitor the output and make real-time adjustments to the input or control actions, thereby maintaining the desired performance level even in the presence of disturbances or variations in operating conditions. This feedback allows the system to correct any deviations from the desired set point, enhancing accuracy and stability.

In contrast, open-loop systems do not use feedback to inform adjustments. They operate based solely on predetermined settings regardless of how effectively those settings achieve the desired result. Consequently, if there are disturbances or changes in the environment, open-loop systems may lead to significant errors in performance. The adaptability and self-correcting nature of closed-loop systems make them particularly useful in applications where precision and reliability are critical.