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Digital C-ESR meter

caps

Jul 29, 2018
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Digital C-ESR meter.
https://www.qsl.net/yo4hfu/ESR.html
My version of the ESR meter. Made in the form of tweezers. I applied components from the best manufacturers. As a result, I got a stable in-circuit operation in the range of 0,001-0.01 Ohms.
Polymer capacitor 150uF.
ESR-0,004 Ohm.
C-ESR meter.jpg
 
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caps

Jul 29, 2018
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183
Resistor SMD 0,01Ohm 1%.
Resistor SMD 0,02Ohm 1%.
 

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caps

Jul 29, 2018
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1,5uF 400v.ESR-10 Ohm.
Very good.
 

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  • ESR table.png
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hevans1944

Hop - AC8NS
Jun 21, 2012
4,878
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Lots of good electronics coming from the Russian Federation now.
 

caps

Jul 29, 2018
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I built one of these in a kit form, about $5.00 and $3.50 freight, and it is very versatile and accurate. Where you plug the components in for testing is chinsy, but the other parts have good tolerances. It has a self test function when you power it up.
Can you measure a 0.1 Ohm resistor?
 

dick56

Apr 15, 2011
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Apr 15, 2011
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I will give it a try as I have not measured resistance that low as yet.
 

dick56

Apr 15, 2011
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Apr 15, 2011
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Here are some pic of the meter while measuring a 0.82 ohm resistorOhm meter.jpg Ohm meter2.jpg and a 224 nf capacitor
 
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