An old trick I learned from an Australian standards lab was to make a vibration free table with a 2 foot by 2 foot by 2 inch paving slab supported by a partly inflated wheel barrow inner tube. I tried it recently for measurements of force in an electric clock movement and it cut out the background vibration in a spectacular way. cheers, Neville Michie
> On 27 Jun 2020, at 22:02, Michael Wouters <[email protected]> wrote: > > 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.
