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Re: What efficiency?!
Tesla List wrote:
>
> >From MALCOLM-at-directorate.wnp.ac.nzThu Nov 21 14:40:56 1996
> Date: Fri, 22 Nov 1996 07:45:52 +1200
> From: Malcolm Watts <MALCOLM-at-directorate.wnp.ac.nz>
> To: tesla-at-pupman-dot-com
> Subject: Re: What efficiency?!
>
> On the topic of fibre-optic monitoring....
>
> > > Why not "simply" use a fiber-optic link between the scope and CT? CT-unit
> > > would be floating.. This might include AD of the measurement data (and
> > > sending the data via fiber in digital form) and then a datalogger
> > > (computer) recording the data from the fiber.. One could then run
> > > fourier-analysis etc. to the data..
> > >
> > > One of those things on my "must try some time" list..
> > >
> > > Kristian Ukkonen.
> > >
> > > Kristian,
> >
> > The fiber optic link is the only way to go. I would imagine the link
> > would not be an easy or casual thing either. Their is still the emitter
> > circuitry right there at the coil! Good luck with it.
> >
> > Richard Hull, TCBOR
>
> This might not directly relate to the problem being solved here but I
> recently had the idea of using two fibres to monitor my rotary gap
> position/speed and that was to use one to pipe light to the gap and
> the other as the pickup.
>
> Malcolm
Malcolm,
The use of the arcs own light is a great idea and occured to us about a
year and a half ago. Glass fiber would be best, but with plastic fiber
and a good lens system little lose or attenuation would be present. With
a very fast PIN diode detector, a lot of valuable data can be gathered
regarding what is actually taking place in the gap. This is in addition
to the original info sought. (Dwell, quench and rep rate.) Also, an
audio tape recorder can record the gap noise and later the exact rep rate
can be determined with either a counter or a scope.
Richard Hull, TCBOR