[time-nuts] Vibration isolation of quartz oscillators

[Neville Michie]

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 <michaeljwouters at gmail.com> 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 -- time-nuts at lists.febo.com
> To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
> and follow the instructions there.