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Quench, Coherence etc.
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From: Malcolm Watts [SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent: Sunday, August 09, 1998 8:13 PM
To: tesla-at-pupman-dot-com
Subject: Quench, Coherence etc.
Hi all,
Here are a few results obtained from some experiments. Power
supply was DC charger, BPS = 1.
Two Coil System
Lsec : 20.6mH, Csec : 13.5pF, H/D : 4.8, Cterm : 6pF or so
Fs(w. term) : 250kHz
Lp : 17uH, Cp : 25nF, Vp : 13kV (system breakout about 9kV)
Ep : 2.1J
Ttransfer : 12uS, Ringup : 3 cycles of Fs, k : 0.16
Gap = adjustable pipe gap. Number of gaps varied from 2 to 8 during
tests. Adjusted to fire at 13kV for each number of gaps.
Results: - 2 gaps : no effective quench except with attached streamer.
Mostly 3, 4th notch quench. 11" hot blue spark to ground
rod 20% of the time.
- 4 gaps : quench mostly 2nd notch w. no breakout, always
with breakout. Spark about the same as 2 gaps.
- 6 gaps : quench always 2nd notch. Spark increased to 11.5"
20% of the time.
- 8 gaps : quench always 1st notch. Spark 10.5" for 20% of
shots - yep, it decreased.