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tangvu
Joined: 12 Nov 2004
Posts: 6
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 17 Nov 2004 0:28 converting phasor form to real time form |
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I need help converting the following two phasor eqns into real time forms. Having problems with the imaginary (j). Side note, eqns below are related to electric and magnetic fields.
Em = constant
j = imaginary
B = beta
z = distance z
phasor form: k*sin(pheta)/(2*pi*epsilon)*e^(-j*B*r)*j*w/(c^2*r)
convert into real time form
k = constant
pheta = angle
epsilon = constant
B = beta
r = distance r
w = omega
c = constant
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masadi
Joined: 02 Dec 2004
Posts: 74
Helped: 8
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| 22 Dec 2004 6:38 converting phasor form to real time form |
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ur equatin aint clear enough, i cant understand it
if u wanna convert a phasor form into real time form u multiply it with e^jwt
w= omega
t = time
and then using euler identity e^x = cos(x)+j*sin(x)
and take the real part of it (without j factor)
u get the real time from from phasor form
may this helps
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snaider
Joined: 08 Jul 2004
Posts: 145
Helped: 3
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| 24 Dec 2004 15:51 Re: converting phasor form to real time form |
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| beside that you can try wiht derive and get the solution.
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the_jackal
Joined: 15 Dec 2004
Posts: 82
Helped: 3
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| 26 Dec 2004 16:56 Re: converting phasor form to real time form |
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What's pheta cause i never heard of this greek symbol?
Masadi is correct that your equation is not clear! Another thing:
e^(-j*B*r)*j*w = e^(B*r*w) = not imaginary!
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