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What is feedback? what is the advantage of it?

  1. Nov 13, 2009 #1
    What is feedback? what is the advantages of it?
     
  2. jcsd
  3. Nov 13, 2009 #2

    stewartcs

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    Science Advisor

    Feedback typically is data that is sent back to a controller (such as a PID) to help improve the output signal for control of a device.

    The advantage is you have better control over your device. For example, if I'm using a PID to control a motor's speed, the feedback signal can be used to improve the output speed signal sent to the motor.

    CS
     
  4. Nov 13, 2009 #3

    berkeman

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    Staff: Mentor

    Sounds like a schoolwork question. What can you tell us about feedback? What do you think some of the advantages and uses are?
     
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