Re: Gazeous oxygen magnetic behaviour...


"Fred_Bartoli" <fred.removethis.bartoli.canxxxelthis@xxxxxxxxxxxxxxxxxxxxx>
wrote in message news:491eceaf$0$31362$426a74cc@xxxxxxxxxxxxxxx
Hello,

I've a very sensitive experiment in which an air coil is the pickup
sensor. We have an unexplained residual error and after carefully
eliminating all the possible causes, the obvious and less obvious ones, we
finally found the cause was "in" the pickup coil itself. There's no doubt
about this now.

Some more experiments led us to one hypothesis where the air oxygen which,
is paramagnetic, interacts with the system and I'm now trying to put some
figures on this hypothesis.

My pb is that I don't know how to work out magnetic problems with gases
and I don't find much information on web.

I can't say much on the system but our hypothesis has to do with linearity
of the medium (air) and saturation.

Any hint on how to tackle this is welcomed.

--
Thanks,
Fred.

Magnetic properties are non-linear. Google "hysteresis".
http://www.ndt-ed.org/EducationResources/CommunityCollege/MagParticle/Physics/HysteresisLoop.htm






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