Yes, a large mechanical disruption may cause a large enough spurious signal to cause a cesium beam clock to lose lock. It is equally likely that your shock caused a discontinuous frequency jump in the OCXO as that it caused a spurious innovation reading from the physics package.
You will find that modern cesium instruments (4310, Cs4000, 5071), with sophisticated firmware servo algorithms, will be considerably less susceptible to mechanical input. -RL -- ---------------- Robert Lutwak, Senior Scientist Symmetricom - Technology Realization Center 34 Tozer Rd. Beverly, MA 01915 [EMAIL PROTECTED] (Business) [EMAIL PROTECTED] (Personal) (978) 232-1461 (Desk) (339) 927-7896 (Mobile) (978) 927-4099 (FAX) -------------- Original message -------------- From: "Christopher Hoover" <[EMAIL PROTECTED]> > Should I expect a healthy Cs beam standard to lose lock if the unit gets > a sharp (enough) mechanical shock? I'm just asking about the general > nature -- obviously implementations will have differing mechanisms for > and degrees of isolation. > > My FTS 4050 lost lock briefly once when I was dropped another piece of > gear I was loading above it in the same rack. The two events were > directly correlated. I wasn't terribly suprised, but wasn't sure if > that was "normal." > > It lost lock briefly last night, again, but for unknown reasons. We did > have a small'ish earthquake, so I'm told .... > > -ch > > p.s. Look out for some questions on how to deal with outliers and gaps > in datasets for stability analysis .... I'll pursue the literature > first; pointers to anything of particular merit would be welcomed > kindly. > > _______________________________________________ > time-nuts mailing list > [email protected] > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
