undershoot
  • To fall short of that which is necessary, desired, or expected. For instance, in an analog indicating device, a pointer excursion which does not reach the value that should be indicated.
  • In a control system, the amount by which a response falls short of that which is necessary to maintain the controlled parameter at the desired level.
  • The extent to which undershoot (1) or undershoot (2) occurs.

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