I thought some of you might find my technical article of the month
interesting. It is on making voltage measurements with a current
probe. Over much of the useful frequency range of a current probe, its
output is not the current in the wire but rather the voltage drop
along the wire per unit length. The waveshape of the probe output is
that of the voltage drop along the wire (di(i)/dt), not the current in
the wire (i(t))!
If this sounds interesting, click on the current probe picture at the
bottom of the index page on my website at http://emcesd.com for a
technical discussion along these lines.
Doug
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___ _ 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: [email protected]
\ _ / ] \ _ / Website: http://www.dsmith.org
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