Quote:
Originally Posted by Esteban
If somebody understand Spanish, translated for original Elektor issue, is for indoor uses with short antenna. The drawing only is ilustrative of how can obtaining some ammount of energy. The principle also is used in satellite for solar cells, etc., regarding the publication. Only I share it.
Regards
Esteban
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en el interior I see that... but...
OK... the electric field gradient is normally 100V/m... so if you have e.g. a 3 floors in your house you have about 10meters to play with... then around 1000V from tip of antenna at your higher floor to zero at ground wire.
Nice... but... the current ?
Have you tested it really in practice ?
I dubt the neon lamp will start glow (the breakdown is around 200V for small neon lamps not 1000V as reported), and I dubt any appreciable current flow can be produced that way.
I guess some maybe picoampere is what you can expect from static field.
Now suppose 10picoampere is the current you can get from there...
And your battery pack is say... 2800mAh...
You could need then 2800/0.00001 = 280,000,000 hours to get them charged... of say 280,000,000 /24 = 11666666.667 days to get full charge
or... 280,000,000/24/365 =
31,963.47 YEARS TO GET A FULL RECHARGE!
Dang... I think that people... will find more suitable locating the antenna above the roof... make a very sharp tip... add some americium-241 maybe... to get some lightening and
DIE than waiting so long ice-age-interval for charging that dang batteries !
Or not ?
Kind regards,
Max