You could make some reasonable assumptions about vibration levels and g-sensitivity and calculate the effect on ADEV. This would let you know if you're in the ballpark for your requirements. Also, Lord makes vibration isolators that address topics like damping and they are designed to do it in minimalist space. Likely not to be able to get much isolation at 100s without the rubber suspensions, I suspect. You might also look at the work at NIST on the trapped ion work where they hung (search Jim Bergquist) local oscillators from surgical tubing.
Mike -----Original Message----- From: time-nuts [mailto:[email protected]] On Behalf Of Michael Wouters Sent: Saturday, June 27, 2020 08:03 To: Discussion of precise time and frequency measurement Subject: [time-nuts] Vibration isolation of quartz oscillators I have three Oscilloquartz 8607-Bs that I'm rehousing. In their former life they were part of the frequency synthesis chains for H-masers and they hung vertically from a rubber suspension that was presumably intended to provide vibration isolation. Unfortunately, the person responsible for this has long since retired so is no longer around to ask questions of. In the experiment I will be averaging over 100 s, which suggests to me that very low frequencies are what I need to filter out (if at all), and I am skeptical that the rubber will do this. Space is tight so I am wondering whether I should simply ditch the isolation. What do other people do with their quartzes ? I thought I should ask for some advice before attempting measurements. Cheers Michael _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
