[time-nuts] Cs stability

Tom Van Baak tvb at LeapSecond.com
Tue Jul 17 03:40:49 EDT 2007


> In the article "OBSERVATIONS ON STABILITY MEASUREMENTS
> OF COMMERCIAL ATOMIC CLOCKS", Pekka Eskelinen claims to
> have measured a phase temperature coefficient of 100ns/degree
> for commercial Cs clocks in 1999.

Something is wrong with that claim. There's no way a modern
cesium standard exhibits a phase shift of 100 ns for a one
degree change in ambient temperature. I have Cs standards
that often change in temperature by several degrees and still
keep to nanoseconds. I guess I need to decode that paper
and see what's wrong. Does anyone have contact with the
authors (Finland)?

/tvb




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