[time-nuts] Thunderbolt temperature measuring
Mark Sims
holrum at hotmail.com
Sun Jul 26 22:37:09 UTC 2009
>From my poking and prodding, I think the temperature sensor serves two purposes. First as an environmental alarm. Second as compensation for temperature effects on the system as a whole. As such, you want it near where it was. Sticking it on the oscillator would mask a lot of the ambient temp changes that it is making adjustments for.
Another thing to consider is the difference in the thermal mass / time constant of a DIP package and the SO-8 package. The DIP will respond more slowly to temperature changes. It is not known how that might affect the oscillator disciplining algorithm.
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