I use a chinese model with DSP, and it include 3 notch finder that kill resonance frequency. (well, this is not exactly a notch finder, but it kill a mechanical resonance)
even using the microstep mode, if you need a really smooth motion, you will notice that a standard stepper driver (even with microstep) will have some working frequency (constant speed) more noisy than other. Tuning the filter of these driver, you can kill most of theses additional noise, getting a really nice motion. I don't know the exact working of these amplifier, but I known the one used on some commercial drive, and from the parameter to set, I thing this is similar. Le 30.04.2012 23:46, Kent A. Reed a écrit : > Gene brought up mechanically damping mid-band resonance in a stepper. > I'm old school and mechanical/inertia dampers are all I know. Folks have > posted videos to YouTube that show the efficacy of this approach. > > However, I've noticed a number of stepper-drive vendors claim to have > electronic solutions to the resonance problem. Geckodrive, for example, > has its "mid-band compensation." Parker Motion has not one but three > techniques: ActiveDamping(TM), Electronic Viscosity (TM), and ABS > Damping (TM). > > Question to y'all. Do these electronic techniques deliver the goods? Is > a mechanical solution not needed if one or more of these electronic > solutions is employed? (I'm stilling using the PMDX-150 drives I bought > from Steve years ago. I don't want to buy a new drive just to test a > vendor claim; I'd rather wait until I the magic smoke has escaped from > one of mine.) > > Are there any videos posted that might satisfy us honorary Missourians > (the Show Me state)? > > Regards, > Kent > > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
