Feedback
Control[1]
Feedback occurs when outputs of a system are routed back as inputs as part of a chain of cause-and-effect that forms a circuit or loop. The system can then be said to feed back into itself [2].
If we were to use a heating system, we could deduce how feedback is used. A sensor detects the temperature. When the temperature reaches a certain threshold, a signal will be sent to an actuator which will trigger the heating to turn on and start heating the area where the temperature sensor is located.
Standards[edit]
- Describe the role of feedback in a control system