Locus Diagram

Discussion in 'General Electronics Chat' started by Faidi, Feb 20, 2007.

  1. Faidi

    Thread Starter New Member

    Jan 19, 2007
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    what is meant by locus diagram and what is it used for :confused:
    Plz help me
     
  2. wireaddict

    Senior Member

    Nov 1, 2006
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    Personally, I've never heard of a locus drawing and neither did Wikipedia, however, according to them, Locus is the name of several journals for artists. Also, one definition of locus [or loci] is the set of points satisfying a condition such as a curve; as such it/they would be used in mechanical drafting or drawings. Hope this helps; if not, give Google a try.
     
  3. Ron H

    AAC Fanatic!

    Apr 14, 2005
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    Perhaps you are talking about root locus diagrams. Google "root locus".
     
  4. Distort10n

    Active Member

    Dec 25, 2006
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    It's all about the poles and zeroes...used in control system stability calculations.
     
  5. Dave

    Retired Moderator

    Nov 17, 2003
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    I too thought root locus diagrams when I first read this question. Its an old, in some practical cases obsolete method, however for learning the rudiments of control system theory it is a good way of cementing the basics.

    Dave
     
  6. sword of truth

    New Member

    Jan 19, 2007
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    locus diagram is presentation of impedance (L(&or)c(&or)R) where the 'R' is on the x axis and the(L,c) are on the y axis and can be used in the presention admittance and using ohms lw we can get the current in a circuit or voltage on that circuit
     
  7. Papabravo

    Expert

    Feb 24, 2006
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    Smith charts also serve this function.
     
  8. sword of truth

    New Member

    Jan 19, 2007
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    i don't know much about smith charts but i think by locus diagram we can determine the behaviour of the circuit
     
  9. Dave

    Retired Moderator

    Nov 17, 2003
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    Do you care to embellish? This is certainly a different interpretation from those outlined previously, when we talked about the root locus diagram which is essentially a graphical method for ascertaining the location of the closed loop poles of a system without the necessity to compute them explicitly.

    Dave
     
  10. amit _bhadauriya

    New Member

    Sep 20, 2010
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    If one of the circuit element is variable , then the characteristics of the circuit varies .The locus of the extremity of current phasor ,obtained for various values of a variable element is called a locus diagram .
     
  11. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    Do you realize the thread os over 3 years old?
    The Original Poster will gone by now.

    Bertus
     
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