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

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The distinction between open-loop and closed-loop pneumatic systems primarily lies in the use of feedback. In an open-loop system, operations are conducted without any feedback mechanisms; the system outputs control actions that do not adapt or adjust based on the results of those actions. This means that the system operates based solely on the initial commands given without regard for the actual performance or state of the system.

In contrast, a closed-loop system incorporates feedback that allows it to monitor the output and make adjustments accordingly. This feedback can come from various sensors that monitor performance metrics like pressure, flow rate, or position, and these readings inform the control system of any necessary changes to maintain the desired output.

The presence of feedback in a closed-loop system enables dynamic adjustments, making it suitable for more complex applications where conditions can vary and require real-time corrections to ensure optimal performance. This functionality allows closed-loop systems to maintain higher accuracy and efficiency during operation compared to open-loop systems.

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