Lumin Disc or Plasma Globe - able to cause damage

Discussion in 'Electronics & Electrics' started by psychobunny, Jun 4, 2013.

  1. psychobunny

    psychobunny Member

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    Hi, just wondering what effects a plasma globe or a lumin disc could have on a PC if it is in close proximity?

    could they fry a PC or wipe a drive if in contact or if they are close by?
     
  2. Fishface

    Fishface Member

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    Absolutely no effect whatsoever.

    Might interfere with some computer speakers.
     
  3. 2xCPU

    2xCPU Member

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    Depends on your definition of "close by".

    On the far side of a room - no.

    Deliberate coupling - absolutely.

    Have a read of the Wiki article.
    The voltage inside is well above 'normal' ESD protection built into modern chip.

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  4. OP
    OP
    psychobunny

    psychobunny Member

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    I'm thinking mounting a globe or disc to or inside a case - that close
     
  5. aXis

    aXis Member

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    Inside a case is a terrible idea.

    No, they wont wipe a drive, the magnetic feild required is too high. They will however put out lots of EM (radio) radiation, and the wires on your motherboard will act as antennas. I think it would be very easy to have bits flipped and data corrupted whilst in transit between the CPU and RAM/peripherals.

    If you did put it inside a case you'd want it seperatred from any electronics by a decent faraday cage.
     
  6. 2xCPU

    2xCPU Member

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    It sounds like a prop in a 1940s SiFi film!

    Get your oldest / least wanted PC (or find one on hard rubbish). Set it running Memtest (or super Pi if it has an OS). Drop the globe in and see what happens.

    I'd think it'd kill the PC, but perhaps not.
    Remember that ESD damage is cumulative, so just because it doesn't fail instantly, doesn't mean there is no damage.

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  7. desertstalker

    desertstalker Member

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    A grounded mesh screen (attached to the metal case) on the back of the globe should block the EMF though.

    But yeah, I would not run one inside the case of a PC (the metal case of a PC is a pretty good Faraday cage as long as it does not have too many holes).
     
  8. 2xCPU

    2xCPU Member

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    Rather defeats the purpose of putting it in a case if you can't see it.

    2.
     
  9. desertstalker

    desertstalker Member

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    Presumably there is a window in the case so you can see the globe, if you cover the section between the globe and the PC components with mesh then you can protect the PC and still see the globe.
     
  10. Duff Man

    Duff Man Member

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    Where abouts are you thinking of getting a lumin disk here in Australia? I was looking on Amazon but they won't ship here.
     

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