[time-nuts] LPRO Pressure Sensitivity
Bob Camp
lists at cq.nu
Thu Jan 21 12:50:43 UTC 2010
Hi
Yes indeed.
There really isn't a lot of data out there on pressure on rubidiums. Of course we don't talk about it a lot on our data sheets either ...
If you accept that a normal day might have a 100 millibar change, That changes the frequency 10 ppt, if the guess is right. At 10X that level it would be as significant as temperature on a good unit. If it was that big it should get a lot more attention ...
Bob
On Jan 21, 2010, at 4:53 AM, Magnus Danielson wrote:
> Bob Camp wrote:
>> Hi
>> Has anybody taken any data on LPRO's to see what their pressure sensitivity is? I'm guessing it's ~ 0.1 ppt / millibar. That's only a guess backed up by no data at all ....
>
> Do you mean 1E-13 per millibar? (I am only guessing)
>
> Cheers,
> Magnus
>
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