I have not had problems with My G changing short term, (BUT it would be interesting to see if I can detect the moon overhead).
Warren,
Lunar/solar tides change g at roughly the 1e-7 level over an interval of 6 to 12 hours. The g sensitivity of a 10811 is on the order of 1e-9. So the quartz oscillator you're looking for needs to be stable to well below 1e-16 at tau 10k to 100k s to detect the moon. Sorry. Meanwhile, precision pendulum folks have had success turning their clocks into gravimeters. Now if you really want some fun connect your OCXO to a one meter cable and let it swing like a pendulum clock. You should see some very nice sinusoidal FM as it goes back and forth. Devise some sort of mechanical, compressed air, or magnetic impulse system to keep it running like that all day. /tvb Thunderbolt +/-g times 3-axis: http://www.leapsecond.com/pages/ocxo-2g/TBolt-2g-6axis.gif More on tides and clocks: http://www.leapsecond.com/hsn2006/ _______________________________________________ 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.
