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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 -- [email protected] >>> To unsubscribe, go to https://www.febo.com/cgi-bin/ >>> mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >> >> > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
