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Time Delay Margin

  1. Aug 4, 2017 #1
    I have a question regarding the time delay margin. I know the definition of time delay margin now I want to know that for the stability of the system is it good to have large time delay margin or small time delay margin?
     
  2. jcsd
  3. Aug 4, 2017 #2

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    A large margin is good for safe stability, but it may make the system slow to respond. So there is a trade-off. In something like a fighter aircraft flight control, minimal phase and gain margins will be specified. The design engineers will try to get a fast responding plane, but that will probably get them close to the required minimal margins. Usually it is a minimal phase margin that is specified and that can be converted to a time margin at the critical frequencies.
     
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