[SI-LIST] coupling from devices to cables
- From: "Douglas C. Smith" <doug@xxxxxxxxxx>
- To: si-list <si-list@xxxxxxxxxxxxx>
- Date: Wed, 06 Feb 2002 20:11:08 -0800
Hi All,
I spent an afternoon taking some data on fields coupled to cables. Local
fields emanating from devices in a system that would normally not be a
problem can induce currents in nearby cables that can cause significant
problems. This month's Technical Tidbit (http://www.dsmith.org) details
measurements on the results of inductive coupling into a cable. The
measurements show a dramatic result in terms of the amplitude of the
induced current. Also shown: the relative phase between two current
probe outputs (as seen on a scope or on a spectrum analyzer using a
combiner) can be used to confirm the inductive mode of coupling (as
opposed to the capacitive mode of coupling).
The link to the article is the picture of the experimental setup at the
bottom of the index page.
Doug
--
-------------------------------------------------------
___ _ Doug Smith
\ / ) P.O. Box 1457
========= Los Gatos, CA 95031-1457
_ / \ / \ _ TEL/FAX: 408-356-4186/358-3799
/ /\ \ ] / /\ \ Mobile: 408-858-4528
| q-----( ) | o | Email: doug@xxxxxxxxxx
\ _ / ] \ _ / Website: http://www.dsmith.org
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