Re: [CAD_CAM_EDM_DRO] Re: OT: Hi Freq. Centrifuge

Thank you Lee,
Today I found out that there are Osziloscopes around that will handle
that frequency For anouthe Job I need to rent one anyhow.
So as soon I have one in hand I will try your proposal.

In one occasion a year ago I adjusted a variable spindle drive like you
said.
I put a magnet base in the spindle and held a wire coil close.
With the first mill it went perfect.
In the second one I didn't notice that it was in high gear.
The base riped out of the thread and crashed against the wall.
UFFFFF.......

Lucky guy, here I am still

Good luck
Sven Peter
studleylee wrote:

>
> Hi Sven,
> I would guess that with the main coils at that power, you should be
> able to make a loop with several turns and place the scope probe
> across this small loop, then bring it physically close enough to the
> main power coils to inductively pickup the main coils waveform.
> Enough at least to measure the frequency. Any RF or HAM gurus here to
> jump in
> with ideas...
> -Lee
>
> >
> > But how to tune the frequency if there is nothing to measure it
> with?
> > (4500 VDC, 4KW, supposed to bee 1,3 MHz (that is beyound every
> > Osciloscope's capacity I have ever seen.))
> > I would appreciate every help off line.
> > Thanks
> > Sven Peter
>
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