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LCR meter opinion
masterx81:
Sorry for the stupid question, but how they work in a ripple application, if the frequency of the ripple is quite high? Most of the times after the rectfier stage of an smps (working anywhere from 10khz to 100khz) there are only low esr electrolytic caps...
indman:
--- Quote from: coromonadalix on November 16, 2021, 12:55:05 am ---you dont test a 2uf at 100 khz you test it at 50-60 100 and 120 hz
Virtually all electrolytic capacitors will cease being capacitive at all before 100kHz, and beyond that, will be inductive.
--- End quote ---
You're talking about the truths that everyone knows. But what do electrolytic capacitors and their properties have to do with the measurement of high quality Films capacitors? The link I provided compares the D and ESR readings of 2 units at 10 and 100kHz for Films Capacitors. No electrolytes or ceramics! Explain to me why MS5308 shows adequate results at these frequencies, while DE-5000 overestimates them by 100 times?
Here is more links to such measurements https://www.eevblog.com/forum/projects/esr-meter-adapter-design-and-construction/msg425088/#msg425088
https://www.eevblog.com/forum/projects/esr-meter-adapter-design-and-construction/msg425012/#msg425012
orzel:
--- Quote from: masterx81 on November 16, 2021, 01:25:56 am ---Sorry for the stupid question, but how they work in a ripple application, if the frequency of the ripple is quite high? Most of the times after the rectfy stage of an smps (working anywhere from 10khz to 100khz) there are only low esr electrolytic caps...
--- End quote ---
I was wondereing too. Anyone ?
Trader:
For the DE-5000 you can transform the probes in a real 4-wire measurement, which improves the accuracy.
Ungolian:
Hi all, after going through the threads for the DE-5000 and the Hantek 1833c, I haven't really seen anything about how these two compare head-to-head. They both seem to do the same tests, similar accuracy, and the only real differences seem to be price, the Hantek has more bells and whistles, and is fancier overall. The DE-5000 is more minimal, but basically does the same thing. Not sure if any owners care to chime in on their experiences with long term use, issues, durability, etc. I'm looking to purchase one of the two. The Hantek is obviously sexier. The DE-5000 is more bare-bones, and a part of me is wondering how many corners they cut to get it to that price point. I'd mainly be using it for diagnosing older audio through-hole equipment, to speed up the process, triage what really needs to be replaced. Thanks!
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