List: time-nuts@lists.febo.com
From: Lars Walenius
Re: [time-nuts] Excel logarithmic function (was Thermal impact on OCXO)
Wed, Nov 23, 2016 8:58 PM
>
> You can approximated the MIL 55310 between two points in time as
>
> f(t2) - f(t1) = Aln(t2/t1)
>
> A = ( f(t2) - f(t1) )/ln(t2/t1)
>
> Looking at some of your plots it looks like between the end of year 1 and
> year 10 you age from 20 ppb to 65 ppb,
>
> A ~ 20
>
> The next plot "Lars_ForceAcoef", is a fit with the A coefficient forced to
>