How to avoid magnetic inteference ?

Discussion in 'General Electronics Chat' started by nqchanh194, Dec 5, 2014.

  1. nqchanh194

    Thread Starter New Member

    Jul 5, 2013
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    Hi all, I have a small system which has a magnetic field and I don't want it to be interfered by the external magnetic field around it.
    I've read some document about this. And what I've got is that in case of a variable magnetic field, I should place a conductive plate on one side of the printed circuit board to reduce the effect of the external magnetic field based on the Eddy current. If the magnetic is static, I should use permeable material, which has the ability of re-routing the external magnetic lines, to cover my system completely. However, I don't want my system covered. So could you tell me some other potential solutions ? Thanks.
     
  2. Papabravo

    Expert

    Feb 24, 2006
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    Don't place your system in the presence of external magnetic fields.
     
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  3. MikeML

    AAC Fanatic!

    Oct 2, 2009
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    Put it in an enclosure made of steel
     
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  4. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    If you can measure the interfering field properties you could try producing a counter-field to cancel it. Easy to say, tricky to do :).
     
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  5. bertus

    Administrator

    Apr 5, 2008
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