Why is my plasma ball messing with my screen?

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Offline ...lets split up...

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Why is my plasma ball messing with my screen?
« on: 26/09/2010 12:57:53 »
Hi, i have a computer screen that is switch on by one of those new kind of switches that is activated either by the heat from your finger or the electricity or some other form of magic. It would switch on or off by itself. I was slightly puzzled by this but i narrowed it down to my plasma ball lamp that is within a meter or so of the switch.

I would like to know why this is. My screen model is the samsung syncmaster T260.
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Offline SeanB

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Why is my plasma ball messing with my screen?
« Reply #1 on: 26/09/2010 17:36:30 »
Move the lamp further away is the simplest. The reason why is because of a static charge from the lamp building up on the surface of the monitor surround. This charge has the same effect on the electronic sensor as a finger placed there, so it would cause it to turn on and off randomly.


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Offline tommya300

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Why is my plasma ball messing with my screen?
« Reply #2 on: 26/09/2010 23:26:13 »
Hi, i have a computer screen that is switch on by one of those new kind of switches that is activated either by the heat from your finger or the electricity or some other form of magic. It would switch on or off by itself. I was slightly puzzled by this but i narrowed it down to my plasma ball lamp that is within a meter or so of the switch.

I would like to know why this is. My screen model is the samsung syncmaster T260.

Some idea what a particular soft touch switch may operate. Take SeanB's advice move it the lamp far away as possible. This odd reaction at some point cause permanate damage.
http://www.extremecircuits.net/2009/08/on-off-touch-switch-circuit.html

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Offline RD

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Why is my plasma ball messing with my screen?
« Reply #3 on: 27/09/2010 10:14:42 »
The electric field from a plasma ball is quite impressive ...

Quote
One trick with plasma spheres is to hold a fluorescent light near one.



The pulsating field around the glass sphere is strong enough to excite the mercury gas inside the fluorescent bulb, which in turn excites the fluorescent coating on the inside of the glass spiral and makes it glow.

http://www.waynesthisandthat.com/plasmaballs2.htm

« Last Edit: 27/09/2010 10:18:01 by RD »

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Why is my plasma ball messing with my screen?
« Reply #4 on: 28/09/2010 15:14:27 »
Thanks
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