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Registered Member #59110
Joined: Mon Apr 11 2016, 04:35PM
Location: Camarillo, California
Posts: 74
These researchers are using a small telsa coil to create a self-assembling array of carbon nanotubes. The array is used to light up some LEDs since the coil induces a voltage on the linked tubes that is enough to turn on the LEDs.
Personally I think they just wanted to get paid for messing with a tesla coil...
Registered Member #53
Joined: Thu Feb 09 2006, 04:31AM
Location: Ontario, Canada
Posts: 638
I wonder if this would work with other conductive granules. Their nano-tubes didn't look to be in particularly fine particles so this might work with regular graphite.
Registered Member #4074
Joined: Mon Aug 29 2011, 06:58AM
Location: Australia
Posts: 335
Interesting article. I guess by "reconfigure" they meant using a CW driver of some kind, since they needed the strong electric field? It's odd that the coil only had one lead connected to the primary, as can be seen in the both the photos and video. At first I thought they had simply disconnected it for safety during the photo shoot, but it's clearly visible in the video while the coil is live.
Registered Member #135
Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735
Their primary side driver amplifier most likely does not have a low enough output impedance to drive a primary, most amplifiers do not. For very low impedance applications like this one they need to use the matching transformer to match their amplifier to the primary. The other option of course is driving the primary as a quarter wave resonator at the same Fo as the secondary, and ignore the reflected power loss.
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New Tesla Coil Science
