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Forums
4hv.org :: Forums :: Electromagnetic Projectile Accelerators
« Previous topic | Next topic »   

smaller caps more stages vrs larger caps less stages

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JoeDarkon
Thu May 24 2007, 04:32PM Print
JoeDarkon Registered Member #485 Joined: Sun Jul 09 2006, 01:14AM
Location: San Francisco
Posts: 36
what do you guys think is better?
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pachy
Thu May 24 2007, 08:30PM
pachy Registered Member #802 Joined: Thu May 24 2007, 08:19PM
Location:
Posts: 4
I prefer larger caps less stages but in the other case all depends on timing.If you have good timing your coilgun rockz :] I prefer one stage only because I'm noob yet :]
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...
Thu May 24 2007, 10:24PM
... Registered Member #56 Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
It has been somewhat proven that more stages = more efficiency (especially when combined with a 'diagonal halfbridge' for energy recovery), however it is considerably more complex.

If you think you can make the extra stages work, then by all means go for it. But keep in mind that at the 2nd, 3rd, etc stages the projectile is moving faster then the previous stage, so you need a shorter pulse to prevent suck back.
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uzzors2k
Fri May 25 2007, 12:43PM
uzzors2k Registered Member #95 Joined: Thu Feb 09 2006, 04:57PM
Location: Norway
Posts: 1308
Sorry about the thread-jack, but out of interest what is the highest efficiency anyone has got from a multi-stage? Is it just a little more than single-stage, or a lot more like 10-30% extra? The most I've heard anyone get with a single stage is over 10%.
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