Article View: sci.electronics
Article #11040Re: Filtering noise from a Van de Graaf
From: jeh
Date: Thu, 08 Oct 1992 21:57
Date: Thu, 08 Oct 1992 21:57
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1345 bytes
In article <1992Oct5.121847.20071@cc.uow.edu.au>, gkm@cc.uow.edu.au (Glen K Moore) writes:
> I have built a large Van de Graaf. Belt 6" wide and 6' high. Unfortunately
> it rresets computers and destroys chips in some equipment on the same mains.
> I have tried a few comercial flters with no success.
>
> Does anyone have any ideas on suitable filters in these circumstances?
>
> The Van de Graaf is to be used in a public science centre and thus there are
> going to be many nearby devices.
Have you tried electrically isolating the drive motor from the generator... say
with a long rubber belt or non-conductive drive shaft?
Also, give the VdG its own ground, using a ground rod installed just for the
purpose. Do not ground it to the mains ground!
--- Jamie Hanrahan, Kernel Mode Consulting, San Diego CA
Internet: jeh@cmkrnl.com, hanrahan@eisner.decus.org, or jeh@crash.cts.com
Uucp: ...{crash,eisner,uunet}!cmkrnl!jeh
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Path: arc1-ca.pugleaf.net!sparky!uunet!portal!lll-winken!uwm.edu!caen!sol.ctr.columbia.edu!ucselx!crash!cmkrnl!jeh From: jeh@cmkrnl.com Newsgroups: sci.electronics Subject: Re: Filtering noise from a Van de Graaf Message-ID: <1992Oct8.145743.718@cmkrnl.com> Date: 8 Oct 92 21:57:43 GMT References: <1992Oct5.121847.20071@cc.uow.edu.au> Organization: Kernel Mode Consulting, San Diego, CA Lines: 19