[time-nuts] Thunderbolt performance vs temperature sensor

[Don Latham]

I come to the Tbolt conversation a little late. Is the source code for the
servo system available?
Don

Mark Sims
>
> Hello Said,
>
> The Tbolt that I used for the test was well aged (several months of
> operation) and stable prior to the tests.  It was only powered down for
> the 10 minutes or so that it took to swap out the old sensor.
>
> I tried to choose data sets that were fairly comparable temperature wise.
> I also chose the basic measurement interval to be 1 hour so that
> temperature would not be changing much over the hour.  I am fairly
> confident that the results reflect changes due to the temperature sensor.
>
> I wanted to make the measurement PPS drift / degree C change / hour but
> the later model (low res) temp sensor chip would seldom produce a
> recordable change in temperature over a one hour period.
>
>
>
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-- 
Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
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VOX 406-626-4304
www.lightningforensics.com
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