[time-nuts] Some More questions

[Poul-Henning Kamp]

In message <43CFA454.1080906 at erols.com>, Chuck Harris writes:
>Poul-Henning Kamp wrote:
>> In message <43CF928D.4030101 at erols.com>, Chuck Harris writes:
>> 
>>> It would be interesting to see how such an oven performs compared
>>> to the traditional double oven.
>> 
>> According to a guy at the danish metrology lab, the optimal strategy
>> is moving as little heat as you can get away with.
>
>But that brings us back full circle:  How do you do an exceptional
>job of controlling the temperature of a crystal that was designed
>to operate at 25C?

You put it inside a solid block of copper or aluminium.

You put that block inside a small enclosure where you try to hold
the temperature constantly at 25C.

>These
>instruments already have conventional double ovens around their
>sensitive bits.

Far from always in the metrology business.  You can't put your
kilogram artifact in a double oven for instance.

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