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Physics 12 Online
OpenStudy (babyslapmafro):

Please help me with a root locus calculation. What is the easiest method to determine where the root locus crosses a given damping ration line and the gain at that point? Thank you

OpenStudy (osprey):

this sounds like a complex plane/argand diagram control theory question. the problems come, I think, when the transfer functions start to become above FIRST ORDER, into second and third order and good old OSCILLATIONS can start. If the feedback in a control system is such that the input and the feedback signal are in phase (two phase shifts of 180 degrees) then oscillations can start. http://perendis.webs.com

OpenStudy (osprey):

Closed questions are hard to find. See pptx for very rough sketch

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