[time-nuts] Vibration isolation of quartz oscillators

[Tom Van Baak]

Michael,

These are really good oscillators so in addition to guessing what sounds 
like a good solution verify with actual vibration / acceleration 
experiments.

Last year I tested some Oscilloquartz BVA's for axis sensitivity to 
acceleration. It's quite easy. Some plots here:

http://leapsecond.com/pages/bva-rotate/

At the end of that page are two videos showing the Arduino-driven 
stepper motor rotating platform that I used. If anyone can't view the 
videos let me know off-list (my email is tvb at leapsecond.com).

If you end up doing something similar I would very much like to see how 
your results compare.

Thanks,
/tvb


On 6/27/2020 5:02 AM, Michael Wouters 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
>
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