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charges up to 60 Joule
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delay time 0µs - 1.000.000µs
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external and manual trigger
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1 trigger for rising, 1 trigger for falling edges
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flashcount written in EEPROM - no loss of information
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optional batterydriven mode
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inspired from rapp-instruments.de I tried my luck:
not with
a high voltage transformator but with a > 9V transformator < making more
than 4500V
(common flashlights work with voltages about
300V)
! notice that such a high voltage is extremely dangerous, see also
disclaimer !
a great paperdisc rotating at 10.000 turns per minute! no smearing of lines
the disc with
more than 1000km/h is to slow for measuring this flashlight >>
flashduration <5µs <<
 
flash-tube
an old case an a cheap battery driven light (rest of it for
garbage)
reflector with tube in it, capacitors, transformer and a hand
full of electronics
control panel with display - still with protection foil
and everything put together
loading the shorttimeflash
>click here<
(12MB-AVI) for movie of charging just 5Joule -
the 182V are the rest from the last charge
>click here<
(6,8MB-AVI) for movie of shooting the flash in
manual mode (20Joule)
little math:
the flash can be load
with 60Joule, the flash duration is about 1µs (don't know exactly yet)
what
is the power of the homemade flash during this short moment?
(solution at the
end of the page)
>> due to savety reasons I don't post
the shematics <<
I think everyone with an technical background is able
to figure out how this whole thing works
here are pictures from the first 30
flashes
(I still have black spots on my eyes - about 4 joules out of
60)
100ms between the two pictures
my second series of flashes:
that's it for today! coding and 50 flashes in a row make
tired
I'm sadisfied with my fast made pictures on the first day
note to all inspired people:
don't build a flash with this hight
power
I think 20% should be enough
for the next series of pictures I will
even wear sunglases with 5 joule
shooting the flash with 60 joule isn't fun
when you are in the same room
also the EMP isn't nice to other electrical
gadgets around
(wireless keyboard doesn'd work after a flash...)
I will try taking shorttime photographs in
sunlight, maybe the flash is powerful enough...?
update: gallery 1 more waterdrops
update: GALLERY
2 killing
balloons :-)
other
shorttimeevents will follow...
solution: the power is unbelievable
>> 60.000.000 W<< during flash
equal to switch a
million ordinary light bulb's on and off in a microsecond
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