Post History

**Preface**

English isn't my first language.

I'm still pretty green relatively as an electrical engineer with 3 years out of B.S. program and in the medical industry. 

This is my first post on any stack exchange type of forums. Apologies for any forum taboo or mistakes they were not intentional.

**Possible Answer**

Olin I think you're right about the "ceramic capacitor memory effect". The google search you probably missed is for [dielectric absorption](https://en.wikipedia.org/wiki/Dielectric_absorption) which is similar to magnetic remanence. 

A quick read of the wiki (in my opinion) seems to give insight into what you're experiencing.

the settling time might take longer to settle because even if the capacitor is discharged fully the cap self charges back to up to some % of the original voltage which is based on dialectic (see **Measurement** section of linked wiki article above).

That self charging is likely confusing the software because it still thinks the capacitor voltage is still stabilizing before it reaches some type of equilibrium.

you can probably run a test on the caps you've tried so far to see how long it takes them to settle to an equilibrium condition as seen by the software.

or

You might be able to add a hard time stop to settling in your software  when measuring certain resistance ranges. The hard time stop to "finish" settling would likely need some heuristic tuning. But you already know generally speaking how long it should take based on your 14 time constants figure.


I hope this helps. Happy holidays.