[SI-LIST] Tuned probe tester

From: Doug Smith <doug@xxxxxxxxxx>
To: SI-List <si-list@xxxxxxxxxxxxx>,emc-pstc <emc-pstc@xxxxxxxxxxxxxxxxxx>
Date: Tue, 06 Jan 2004 16:21:45 -0800

I have posted my latest technical tidbit on http://emcesd.com that 
discusses one way probing a signal can distort it as well. Ever have a 
circuit only work when a scope probe is connected? One possible answer 
is in the article.

------

Abstract:  Probing can have significant effects on the signals being 
measured. One of these effects, resonance between probe input 
capacitance and lead inductance, can be simulated with a trimmer 
capacitor and its connecting leads. Such a "tuned probe simulator" can 
both provide insight on how probing affects signals and help 
troubleshoot circuit problems as well. Tuned probe simulators for 
passive and active probes are discussed.

------

UC Berkeley Extension is hosting my high frequency 
measurement/troubleshooting course in early March. The link to the 
course is:

http://www.unex.berkeley.edu/eng/elec/313544.html

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
  \ _ /    ]    \ _ /          Web:     http://www.dsmith.org
------------------------------------------------------------

------------------------------------------------------------------
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 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

[SI-LIST] Tuned probe tester

Other related posts: