Systems are continually affected by information they have to react to from both within and outside. Two simplistic examples, if you start to feel cold you can either put on more clothes or turn the heating up. The sense of cold is information putting on clothes is the reaction. Secondly if you feel hungry, you have a choice of reactions that you can take to this “information”.
http://sciencebitz.com/?page_id=15
Source: Boundless. “Control of Homeostasis.” Boundless Biology. Boundless, 21 Jul. 2015. Retrieved 13 Oct. 2015 from https://www.boundless.com/biology/textbooks/boundless-biology-textbook/the-animal-body-basic-form-and-function-33/homeostasis-194/control-of-homeostasis-742-11973/.
https://www.boundless.com/biology/textbooks/boundless-biology-textbook/the-animal-body-basic-form-and-function-33/homeostasis-194/control-of-homeostasis-742-11973/
Summary. A feedback loop is a concept found in systems theory. Feedback loops provide information to an organization about system successes and problems. Success result in a positive feedback loop, and problems create a negative feedback loop.
http://study.com/academy/lesson/feedback-loop-definition-examples-quiz.html
The feedback loops are used to inform the body about changes that occur internally and externally. Humans need homeostasis to keep the desired set point at a constant, and with the help of the feedback loops, the body is able to keep the internal environment of the body at the set point.
http://homeostasisinhumans.weebly.com/feedback-loops.html
Positive and Negative Feedback loops. The negative feedback loop brings the body closer to the set point at which the internal environment of the human body operated. For example, during the cold weather the body uses the thermoregulatory centre to try and keep the body temperature at a constant.
http://homeostasisinhumans.weebly.com/feedback-loops.html
The forward path in the feedback loop is the path after the summer, that travels through the plant and towards the system output. Reverse Path. The reverse path is the path after the pick-off node, that loops back to the beginning of the system.
https://en.wikibooks.org/wiki/Control_Systems/Feedback_Loops
Feedback [edit]. A feedback loop is a common and powerful tool when designing a control system. Feedback loops take the system output into consideration, which enables the system to adjust its performance to meet a desired output response.
https://en.wikibooks.org/wiki/Control_Systems/Feedback_Loops
Feedback Loop Transfer Function [edit]. We can solve for the output of the system by using a series of equations: and when we solve for Y(s) we get: [Feedback Transfer Function]. The reader is encouraged to use the above equations to derive the result by themselves. The function E(s) is known as the error signal.
https://en.wikibooks.org/wiki/Control_Systems/Feedback_Loops
Feedback loops provide information to the organization about the successes or failures of the organization's system. A positive feedback loop means that the organization is functioning well. A negative feedback loop means that there are problems in the system that need to be corrected.
http://study.com/academy/lesson/feedback-loop-definition-examples-quiz.html
Definition. A feedback loop in the context of systems theory is the feedback the organization's environment provides it.
http://study.com/academy/lesson/feedback-loop-definition-examples-quiz.html
where is the feedback loops used
The feedback loops used to inform the body about changes that occur internally and externally.