Which term describes the adjustments made to improve system stability in response to output changes?

Feedback control refers to the process of using specific output data from a system to make adjustments that strive to maintain or improve system stability. The essence of feedback control lies in continuously comparing the actual output of a system with the desired output (or reference), and making adjustments in response to any discrepancies. This dynamic adjustment helps the system respond to changes—whether they are due to external influences or internal variations—ensuring that it can maintain desired performance levels.

In practical terms, feedback control loops are fundamental in many automated systems, such as temperature control in HVAC systems, where the current temperature (output) is compared to the desired temperature (setpoint), and adjustments are made to the heater or cooler to maintain the setpoint. This characteristic of feedback control makes it instrumental in enhancing the stability and reliability of various industrial and process control systems.