RE: Vortex gap loss measurements

["Lau, Gary" <Gary.Lau-at-compaq-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Hi John:

By top and bottom, do you really mean the positive and negative voltage
excursions?  I can't imagine any possible way for the gap to be more lossy
in one polarity than the other, and even so, the envelope would still be
symmetrical about the x axis.  As I mentioned, the digital nature of the
scope means it takes discrete samples of the waveforms so the true peaks of
each cycle may not be accurately captured.  The second waveform is taken at
a faster sweep speed and sample rate than the first waveform and clearly
shows a more regular ramp to the envelope.  I think what you observed may
just be a sampling rate anomaly.

Regards, Gary

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Wednesday, September 06, 2000 4:42 PM
To: tesla-at-pupman-dot-com
Subject: RE: Vortex gap loss measurements


Original poster: "John H. Couture" <couturejh-at-worldnet.att-dot-net> 


Gary -

I checked out your excellent photos of your coil in action. I printed out
the scope trace of the waveform. The top part appears to be logarithmic and
the bottom part appears to be linear. Have you looked into this puzzle?

John Couture

----------------------

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Sunday, September 03, 2000 11:33 AM
To: tesla-at-pupman-dot-com
Subject: RE: Vortex gap loss measurements


Original poster: "Lau, Gary" <Gary.Lau-at-compaq-dot-com>

OK, I'm faster than I thought.  I repeated some of my measurements and
snapped pictures of the scope screen with my camera.  The images of the
ringdown are on my Vortex gap web page:

http://people.ne.mediaone-dot-net/lau/tesla/vortexgap.htm

<http://people.ne.mediaone-dot-net/lau/tesla/vortexgap.htm> .

Regards, Gary Lau
Waltham, MA USA