[time-nuts] Best reason
azelio.boriani at screen.it
Thu Mar 29 08:32:59 UTC 2012
Yes, and moreover: what kind of test can be done on that DC source if no
DMM is able to show that accuracy?
On Thu, Mar 29, 2012 at 9:53 AM, David C. Partridge <
david.partridge at perdrix.co.uk> wrote:
> >I'm currently have to convince management that our 6-1/2 DMM (0.01%
> uncertainty) can't be used to test the 0.1ppm DC Source that we're
> Don't bother, just send it to me (once you've fixed it natch) :)
> On a more serious note what it this DC source that can manage 0.1ppm - the
> only thing I can think of that achieve that level of accuracy has to be a
> Josephson junction array.
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