[SI-LIST] Re: si-list@freelists.org
- From: "Kevin G. Rhoads" <kgrhoads@xxxxxxxxxxxx>
- To: rpimenta@xxxxxxxxxx
- Date: Tue, 19 Apr 2005 13:27:04 +0000
>by no means I can use the ferrite beads in such big magnetic field. They will
>saturate
>and my filter will be completely different. If any filter in the end.
>Nevertheless
>I'll place a zero Ohm in place.
You can use an air-core inductor, you won't get the loss ferrite beads will
provide,
but you will get some inductance.
Also, be very wary of "non-magnetic" components and materials, many are weakly
ferromagnetic,
which is normally as good as truly non-magnetic, but with extreme fields (such
as your 5T)
it just ain't the same.
Finally, if there is any AC component to that 5T field, every circuit loop will
have pickup in
proportion to the projection of the cross-sectional area perpendicular to that
field. This
includes not just wiring, but also traces on boards. If you have the design
freedom to align
your boards perpendicular to the field direction, that is a good start.
HTH
Kevin
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List FAQ wiki page is located at:
http://si-list.org/wiki/wiki.pl?Si-List_FAQ
List technical documents are available at:
http://www.si-list.org
List archives are viewable at:
//www.freelists.org/archives/si-list
or at our remote archives:
http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
