On Feb 2, 2010, at 9:57 PM, Bruce Griffiths wrote: > Joseph M Gwinn wrote: >> > Figure 8 (attached) from Collin's paper indicates that the jitter of a 100Hz > wien bridge oscillator is of the order of a few hundred nanosec or so. > This was taken using a 3 stage limiter and a 1 sec counter gate time. > It may be feasible to do better. > > It would also appear to be feasible to produce a 10Hz sinewave with ns jitter > by low pass filtering a square wave using a combination of active and passive > RC filtering. >
That figure pretty clearly shows the issue of getting a good trigger on a low frequency signal. It's a pretty big guess to figure out what the 100 Hz oscillator is doing. At least to my eye it's pretty far from the 1 ppb / second level. As long as we're on the Collins paper - has anybody dug up the final paper referenced? I believe it's titled something like "Hard Limiter Experimental Results"? Bob > Bruce > <Wien_Osc_Stability.png>_______________________________________________ > 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.
