Hi, In : Accurate Clock Pendulums by Robert Matthys (2004) Oxford University Press ISBN 0198529716, Pp264 In Chapter 8 , "The Allen variance and the rms time error", on page 38 he writes: Figure 8.1 shows another characteristic of pendulum clocks - the clock will run relatively smoothly at one rate , and then after 3 - 6 months it will suddenly jump to a new rate as shown if Fig 8.1.
He goes on to say that this is part of a random walk process. I hope that is of some help. Neville MIchie On 23/10/2008, at 9:34 AM, iovane@@inwind..it wrote: > Neville, > >> Hi Antonio, >> >> precise pendulum clocks also suffer rate jumps, the process >> of rate jumping seems to be common to most time counting >> systems. > > I have an interest in this. May you point me to any references? > > 73, > Antonio I8IOV > > > > > _______________________________________________ > 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.
