[time-nuts] AVAR & Femtoseconds
jimlux at earthlink.net
Sun Jun 20 21:53:40 UTC 2010
Robert Benward wrote:
> Boy, you guys are really making me read a lot. I'm digesting Wiki right
> I see tau, but does identifying a tau of 1E-14 allow you to say you are
> locked to 10fs? The smallest tau I've seen in my E1938 collection is 1E-1.
tau is the time over which the measurement is made, typically 1 second
loosely speaking, the 1e-14 is the average fractional deviation of
frequency over that time period.
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