Phase measurement in Multisim

  • Thread starter etf
  • Start date
  • #1
etf
179
2
Hi!
Is it possible to measure phase angle in Multisim? I want to measure phase angle of current through capacitor C1:

sema1.jpg


I got by hand ic1(t)=0.117*sqrt(2)*sin(2*pi*50*t-178.040deg)

Thanks in advance.
 

Answers and Replies

  • #2
etf
179
2
Solved...
 
  • #3
berkeman
Mentor
57,944
8,019
How did you do it?
 
  • #4
etf
179
2
Firstly, it's necessary to modify "AC analysis magnitude" of sources: in my case I put 16.970562 (12sqrt(2)) for voltage source, current source shouldn't be modified. Then I go to Simulate->Analysis->Single frequency AC analysis and there we choose Magnitude/Phase for Complex number format and in Output tab we select our variables. Here are phases for 4 nodes in our circuit:

mjerenje.jpg


It matches with result I got by hand. However, for some reason phase of current through capacitor C1 doesn't match with my result.
 
  • #5
etf
179
2
It doesn't calculate phase angle on same way as I. Here is complex current IC1:
IC1=-0.1174-0.0040195j. Phase angle of this current is atan(-0.0040195/(-0.1174))-pi=-3.1073rad=-178.040deg. Multisim calculates only atan(-0.0040195/(-0.1174))=1.959deg.

mjerenje2.jpg
 
Last edited:

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