[time-nuts] Temp control of LPRO

[Neville Michie]

Hi Hal,
My aim is to run a stable time standard to analyse the long term  
performance of clocks.
Part of this project is to set up a power support system so that  
logging is never interrupted.
Now the LPRO draws less power at lower supply voltage and higher  
operating temperature
and decreasing the power demand was important. Now OCXO systems are  
greatly improved by
double ovening them so it seems hard to believe that the LPRO will  
not improve with
accurate control of temperature.
My project is not complete and my planned method of measuring drift  
is with a digital
oscilloscope comparing the phase of PPS from GPS stabilised systems  
to the divided
10MHz from the LPRO over a period of days, weeks, months or years.
cheers, Neville Michie


On 11/09/2008, at 4:35 AM, Hal Murray wrote:

>
>> I have just commissioned a temperature control for my LPRO rubidium
>> oscillator.
>
>> The next step is to get on with the building of the gear to measure
>> how well the LPRO now performs at constant temperature.
>
> How much did it drift before your recent work?  How did you measure  
> it?
>
> -- 
> These are my opinions, not necessarily my employer's.  I hate spam.
>
>
>
>
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