Re: Shaft balancing

Hi, google visual analyzer and read the articles to use this free soundcard software to balance rotational objects with a buzzer as sensor. Hope it helps.
Indalecio

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Roland Jollivet <Roland.Jollivet@...> wrote:
>
> On 2 November 2011 02:14, Steve Blackmore <steve@...> wrote:
>
> > **
> >
> >
> > On Tue, 1 Nov 2011 20:40:32 +0200, you wrote:
> >
> > >Thing is, I want to be able to balance in selected planes, with add or
> > >subtract. I'm after something like this, but not wanting to spend $000's;
> > >
> > >http://www.dynamic-balancing.com/software.htm
> > >
> > >I want to be able to balance small spindles to 30 000 or so, to mg
> > >resolution, using accelerometers and some PC interface I/O. I can do all
> > >the hardware, but the software is troublesome..
> >
> > Hi Roland, I've balanced a few turbine shafts that rotate to 150K rpm on
> > a home built balancer. I've still got the bits somewhere. All it
> > consisted of was two nylon yokes that held the ceramic bearings on the
> > shaft, the yokes were slotted onto thin nylon sheet which allowed the
> > whole assembly to flex. On these were glued transducers and the output
> > into a two channel o'scope. This was mounted onto a solid base. The
> > shaft assembly was driven by a rubber band to a small electric motor
> > with a flat pulley on the shaft.
> >
> > Here's a "posh" version of my balancer <G>
> >
> >
> > http://www.technologie-entwicklung.de/Gasturbines/Balancing_Tool/balancing_tool.html
> >
> > Details on how to use a 'scope for balancing are here
> >
> >
> > http://www.tek.com/Measurement/cgi-bin/framed.pl?Document=/Measurement/App_Notes/interpmeas/&FrameSet=oscilloscopes
> >
> > no software needed :)
> >
> > Steve Blackmore
> > --
> >
> > __._,_._
> >
>
> Thanks Steve. Looks quite interesting. I suppose I should build and
> experiment rather than let my imagination run wild on complexities. As ones
> understanding increases, the instrumentation required usually simplifies...
>
> Regards
> Roland
>
>
> [Non-text portions of this message have been removed]
>