What operational ability do closed loop systems provide over open loop systems?

Closed loop systems are designed to continuously monitor their output and compare it to a desired setpoint or target. This feedback mechanism allows them to detect any deviations from the desired performance and automatically make corrections to minimize errors. In contrast, open loop systems do not have this feedback capability, meaning they cannot adjust their operation based on the actual performance or environmental changes.

The presence of automatic error correction in closed loop systems enhances their operational reliability and accuracy. For example, in a temperature control system, a closed loop configuration might adjust the heating or cooling in real time based on the actual temperature readings, ensuring that the environment remains within the desired range. This capacity to self-correct is a significant advantage, allowing closed loop systems to maintain stability and efficiency under varying conditions.

While options like increased complexity, higher cost, and constant speed might describe features or characteristics of certain systems, they do not encapsulate the primary operational ability that distinguishes closed loop systems from open loop systems. Automatic error correction is fundamental to the effectiveness of closed loop operations, making it the correct choice in this context.