Dear Paul, You are probably thinking of one of these:
Chadsey et al “Maintenance of HP5071A frequency standards at USNO” in Proc. 29th PTTI, p49-60 (1997) Chadsey “An automated alarm program for HP5071A frequency standards” in Proc. 31st PTTI, p649-655 (1999) Brock et al “End-of-life indicators for NIMA’s high-peformance cesium frequency standards” in Proc. 34th PTTI, p117-125 (2002) Cheers Michael On Mon, Mar 28, 2016 at 1:50 AM, paul swed <[email protected]> wrote: > I do not have it but I stumbled into it on the internet. There was one > paper it was military, naval observatory or NIST and it did indeed show > failure rates of cesiums of the reference that were owned and it must have > been 30-50 of them. > I remember it showed failures of units over years. > Since it did not at all addres my need I did not keep it. > Regards > Paul > WB8TSL > > On Sun, Mar 27, 2016 at 7:53 AM, Attila Kinali <[email protected]> wrote: > > > Moin, > > > > Maybe someone here can help me. > > I am looking for data on the reliability of atomic clocks. > > I.e. how often and, if possible, how they fail. > > > > Unfortunately, if I google for reliability then all that pops up > > are descriptions of the accuracy and stability of atomic clocks. > > If I go for MTBF I only get two papers from the 70s that tackle > > the problem in general, without giving any data. > > > > Does someone know where I could find current data about MTBF and > > failure modes of atomic clocks? Given the number of 5071's installed > > in labs, there must be at least some data on them.... > > > > > > Attila Kinali > > > > -- > > Reading can seriously damage your ignorance. > > -- unknown > > _______________________________________________ > > 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.
