[time-nuts] Mercury Ion Clock

Bob Camp kb8tq at n1k.org
Fri Oct 31 21:27:06 EDT 2014


Hi

Trapped ion clocks have been the “obvious successor” to a Cs tube for at least 30 years. There is a *lot* of very fancy work involved in getting from 10 MHz up to a very specific light wavelength with low ADEV and good phase noise…..

Rocket science indeed. Time Nuts rocket science, but tough to do none the less. 

Bob

> On Oct 31, 2014, at 8:09 PM, paul swed <paulswedb at gmail.com> wrote:
> 
> Humor aside. I did dig deeper. It seems that this technology could be
> commercialized in larger volumes and might land in the same cost as a good
> CS does today. Technically it looks reasonable.
> Regards
> Paul
> WB8TSL
> 
> On Fri, Oct 31, 2014 at 1:45 PM, paul swed <paulswedb at gmail.com> wrote:
> 
>> Jim
>> I am sorry to say thats the wrong clock picture.
>> That picture is of 2 glass coffee tables and a toaster in between.
>> I see you can order that art om ebay. Item number 142657nottoday3245
>> Regards
>> Paul
>> WB8TSL
>> 
>> On Fri, Oct 31, 2014 at 1:36 PM, Jim Lux <jimlux at earthlink.net> wrote:
>> 
>>> OK, I know you all want to go get one...
>>> 
>>> http://discoverjpl.jpl.nasa.gov/posts/520
>>> 
>>> It's Bob Tjoelker in front of the Deep Space Atomic Clock (DSAC) being
>>> tested for magnetic field sensitivity.  It's a trapped ion clock, 1 liter/1
>>> kg, orders and orders of magnitude better than a USO in performance.
>>> 
>>> (if it's in the building I think it's in, the rebar is made of
>>> non-magnetic stainless steel)
>>> _______________________________________________
>>> time-nuts mailing list -- time-nuts at febo.com
>>> To unsubscribe, go to https://www.febo.com/cgi-bin/
>>> mailman/listinfo/time-nuts
>>> and follow the instructions there.
>>> 
>> 
>> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.




More information about the time-nuts mailing list