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In Reply to: RE: Here are the readings of chokes I got on my LC-102 posted by Michael Samra on June 24, 2016 at 10:11:34
For a given inductance, the relationship between frequency and reactance would be linear. What I wonder is what voltage and current are applied by the Sencore to achieve a reading for inductance and whether those unknown parameters could be causing an artifactually low reading for L.
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On inductor test for value,I did measure 5vdc at the output leads before I hooked it to the choke to be tested.Once I hooked my voltmeter across the choke being tested,I measured no AC or DC voltage at all..
I did do a ringing test and they passed and I also did a 10% tolerance test and the chokes passed..I got 12 rings on each.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
For a given inductance, the relationship between frequency and reactance would be linear. What I wonder is what voltage and current are applied by the Sencore to achieve a reading for inductance and whether those unknown parameters could be causing an artifactually low reading for L.
What about the fact that the 320mh chokes read higher than the rated value? Either the chokes aren't consistent with their specified values or they are tested at a specified voltage and current or frequency to achieve their stated value.I can measure the voltage and current out of the sencore.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
If you don't apply DC current while making the measurement, the results won't be accurate. I raised this topic here on the forum sometime back. See the image above and the link below...
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