[time-nuts] CRYO Voltage standards

Bruce Griffiths bruce.griffiths at xtra.co.nz
Tue Dec 2 00:05:34 UTC 2008


Hal Murray wrote:
> [Context is LN2]
>
>   
>> It's cheap and does not wear out (as stirling cycle and peltier coolers do)
>>     
>
> What's the wear-out mechanism for peltier coolers?
>
>
>   
One wear out mechanism is mechanical fatigue due to thermal cycling.

Bruce



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