Degausing 101?

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  • #1
mgb_phys
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Main Question or Discussion Point

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.
 

Answers and Replies

  • #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.
 
  • #3
mgb_phys
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I guess getting the steel annealed and/or wrapping it in a mu metal is out of the question?
Yes, unfortunately it's part of a component that we can't change.
 
  • #4
clem
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Put it in a solenoid with AC current. Then slowly decreasing the current should decrease the magnetization.
 
  • #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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