dave wrote: > > Or we decide that bode is not the way to go and try another approach. > > All of this means nothing if we can't come up with a usable scheme for > acquiring and analyzing data. > I'm sure that amplitude and phase can be extracted from a number of short samples taken with single-frequency stimulus. That just takes time, maybe 5 seconds per frequency to allow the system to achieve steady state and grab a long enough sample to include a couple cycles. If you need 100 frequencies, that needs almost 10 minutes. Clearly doing all frequencies at once will give a much quicker result, but if the various noises muddy the result, that is not better.
I can imagine some script that controls the signal generator and acquires the samples shouldn't be all that hard to do, then the rest could be done with a C program. Jon ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
