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Degausing 101?

  1. May 20, 2009 #1

    mgb_phys

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    I have a component made of some sort of stamped steel which has a significant magnetic field (upto 2000mGa) which I need to use near a sensitive magnetic sensor. The field is high enough to saturate the sensor so I can't calibrate it out.

    Does anyone have any idea about degaussing?
    I tried a tape eraser we had but it didn't do anything.
    I thought of making one, by wrapping a coil around the part - but I have no idea of what kind of field strength or frequency to use.
     
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  3. May 20, 2009 #2

    ZapperZ

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    I guess getting the steel annealed and/or wrapping it in a mu metal is out of the question?

    Zz.
     
  4. May 20, 2009 #3

    mgb_phys

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    Yes, unfortunately it's part of a component that we can't change.
     
  5. May 20, 2009 #4

    clem

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    Put it in a solenoid with AC current. Then slowly decreasing the current should decrease the magnetization.
     
  6. May 20, 2009 #5

    turbo

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    Go to an old-fashioned TV repair shop and borrow a degausser, or contact a data security business. They may have large degaussers suitable for bulk erasure of magnetic media.
     
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