Closed loop: Difference between revisions
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==Mathematics== | ==Mathematics== | ||
* [[Loop (topology)]] | * [[Loop (topology)]], topological path whose initial point is equal to its terminal point | ||
* [[Closed curve]] | * [[Closed curve]], the image of a continuous mapping of a circle | ||
==Technology== | ==Technology== | ||
* | * [[Closed-loop controller]], control law that uses knowledge of the state or output | ||
** [[Closed-loop transfer function]] | ** [[Closed-loop transfer function]], mathematical function describing the net result of the effects of a feedback control loop on the input signal to the plant under control | ||
** [[Electronic feedback loop]] | ** [[Electronic feedback loop]] | ||
** [[ | ** [[Proportional–integral–derivative controller]] (PID), type of feedback controller using three terms (P, I, and D) | ||
* [[Closed ecological system]] | * [[Closed ecological system]], ecosystem that does not exchange matter with the exterior | ||
* [[Closed-loop communication]] | * [[Closed-loop communication]], communication technique in which every received message is confirmed by the sender | ||
* [[Ecological sanitation]] systems or ecosan | * [[Ecological sanitation]] systems (or ecosan), approach to sanitation provision which aims to safely reuse excreta in agriculture | ||
==Other uses== | ==Other uses== | ||
Latest revision as of 13:29, 26 December 2025
Closed loop or closed-loop may refer to:
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Mathematics
- Loop (topology), topological path whose initial point is equal to its terminal point
- Closed curve, the image of a continuous mapping of a circle
Technology
- Closed-loop controller, control law that uses knowledge of the state or output
- Closed-loop transfer function, mathematical function describing the net result of the effects of a feedback control loop on the input signal to the plant under control
- Electronic feedback loop
- Proportional–integral–derivative controller (PID), type of feedback controller using three terms (P, I, and D)
- Closed ecological system, ecosystem that does not exchange matter with the exterior
- Closed-loop communication, communication technique in which every received message is confirmed by the sender
- Ecological sanitation systems (or ecosan), approach to sanitation provision which aims to safely reuse excreta in agriculture
Other uses
- Circular economy, with materials recycled
- Closed time loop, a paradox of time travel
- Knot loop, in a knot
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