Brooke Clarke wrote: > Hi: > > I'm still trying to understand Allan plots. For example looking at a Time > Interval Counter's stability. > > The one shot resolution of the Time Interval Counter is important since it > determines the stability floor on an Allan plot. Can the stability floor be > improved by making the measurements faster? That would move the one shot > resolution point to the left thus moving the line down. > > For example if the one shot resolution of a TIC was 10 ns when measuring a 1 > PPS signal that defines a point at 1 second on the X-axis and at 10 ns on the > Y-axis. Now if the measurement can be made 10 times in each second (the test > signal is changed to a 10 Hz square wave), then the point on the Allan curve > is > now a facter of 10 lower. > > Have Fun, > > Brooke Clarke > Brooke
No, the resolution of the measurement for 1 cycle of a 10Hz square wave is degraded to 1E-7 cf with 1E-8 for 1 cycle of a 1Hz square wave. Bruce _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
