fourier analysis on phase shift oscillator skewed by initial buildup to oscillation?

[flagstone3535]

Is there a way to start a transient analysis at time t=0, but not save simulation results until after the "transients" have died out for subsequent fourier analysis?

When doing a fourier analysis of the output of a phase shift oscillator, the THD values from simulation are much higher than those from measurements on the same circuit.  I am assuming this occurs because it takes a finite length of time for the oscillator output to reach the expected output voltage magnitude and frequency.  Including this transient regime in the fourier analysis would skew the results. 

[Sharanya_R]

Hello,

You can find more information about the transient analysis at this tutorial; Configuring a Transient Analysis in Multisim and you can also find information on fourier analysis here; Configuring a Fourier Analysis in Multisim.

Hope this helps!