What is the difference between an open-loop and a closed-loop control system?

The distinction between open-loop and closed-loop control systems primarily revolves around the concept of feedback. In an open-loop control system, the output is not monitored or adjusted based on its performance; rather, it operates on a pre-set command without considering the actual outcome. This lack of feedback means that open-loop systems are often simpler and less costly, but they can struggle to maintain accuracy and adjust to varying conditions.

In contrast, closed-loop control systems incorporate sensors to continuously monitor the output and provide feedback to the controller. This feedback allows the system to make real-time adjustments, ensuring that the output remains as intended, despite any disturbances or changes in environment. The ability to self-correct through feedback is what allows closed-loop systems to maintain high levels of precision and reliability in their operation.

Understanding this fundamental difference emphasizes the importance of feedback in control systems, highlighting why the statement regarding closed-loop systems incorporating feedback while open-loop systems do not is correct. This concept is crucial in fields like automation and instrumentation where accurate control is necessary.