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Hall effect gradiometer probes

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M

Mark R

Diamond Member
Anyone got any experience with these?

I'm looking for a magnetic gradiometer. It needs to be able to measure gradients of approx 50-1 T.m-1 (100 G/cm) on a background of a 3-4 T (30-40 kG) field, with a spatial resolution of 5-10cm or less.

I'm sure I could put something together with Hall effect sensors, but I've got nothing to calibrate against. So I'm looking for a complete commercial unit (ideally less than $1k).

Any ideas? I'm not finding anything useful with google.
 
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