Worlds smallest thomson's disk launcher.
ShawnLG, Fri May 05 2006, 03:47AMI'ts so small you can build it on your bread board! Nineteen .01uf capacitors are charged to around 690v. Then the three gas discharge tubes will trigger and dump the energy into a small spiral coil form etched on a PCB. The PCB coil form was pulled from a CD rom head lens. I do not know how many turns are there but it looks like maybe 20 to 30. The coil meashures about 5 ohms. The rest of the picture is mostly self explanitory. No expensive pulse capacitors needed.
PERFORMANCE:
When triggered, the piece of foil on top of the coil will jump a few mm. Not impressive, but demistrates Faraday's Law.
Re: Worlds smallest thomson's disk launcher.
Simon, Fri May 05 2006, 06:44AM
Not exactly a "launcher" but, wow, is that really 45mJ (millijoules)?
What kind of charger do you use? Looks like a mini tranny run off a single-transistor oscillator or something.
Simon, Fri May 05 2006, 06:44AM
Not exactly a "launcher" but, wow, is that really 45mJ (millijoules)?
What kind of charger do you use? Looks like a mini tranny run off a single-transistor oscillator or something.
Re: Worlds smallest thomson's disk launcher.
FastMHz, Fri May 05 2006, 05:10PM
That's pretty cool...and proves that they work even when scaled wayyyyy down.
FastMHz, Fri May 05 2006, 05:10PM
That's pretty cool...and proves that they work even when scaled wayyyyy down.
Re: Worlds smallest thomson's disk launcher.
ShawnLG, Sat May 06 2006, 03:33PM
The charger is like the one you would find in a disposable camera. This one is from a laser printer.
Coilform:
ShawnLG, Sat May 06 2006, 03:33PM
The charger is like the one you would find in a disposable camera. This one is from a laser printer.
Coilform:
Re: Worlds smallest thomson's disk launcher.
Electroholic, Sat May 06 2006, 05:13PM
Where did you get that work coil?
Looks like a planar transformer.
Electroholic, Sat May 06 2006, 05:13PM
Where did you get that work coil?
Looks like a planar transformer.
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