I'm looking?forward to the results of your work! And I'm very glad you got your 3458A... I want one for myself too. One day! Its linearity is mythical. I hope you're able to fix it in no time.?
Until I?get?my own, I'll have to get by with my Prema 6048. Which was a complete strike of luck, and it's working pretty much as designed. Which has room for improvement!?
On Tue, Nov 14, 2023 at 9:41?AM Reginald Beardsley via <pulaskite=[email protected]> wrote:
I did extensive numerical studies and found I could invert the 1D heat equation for multiple flows such that the prediction accuracy was 1-2% error for a period equal to the recorded data.? That assertion generated all the controversy I was involved in.? I just? wanted to demonstrate that I reliably forecast the drift.? For that I need a signficiant amount of multichannel data.? No one would provide any so I'm building my own system to compare 40 new and 40 old LM317s voltage references over time in immediate proximity in an environmentally controlled chamber.
The dominant source of initial drift is the thermo-viscous relaxation of the wirebond strains.? Diffusion is probably next, but you can only peel the onion one layer at a time.
But I finished lunch and need to get back to clearing the clutter out my shop s1500 sq ft tp get it properly lighted and wired and my long delayed screen room built.
