[time-nuts] Vibration isolation of quartz oscillators

[Tom Knox]

Hi Michael;
So what I did with one of my 8607's was placed it in a cast aluminum box with 1/2 of soft silicon foam (it will never break down over time and heat) on all sides to provide not only mechanical isolation but thermal isolation as well. I actually did a bit more then that and would be glad to send you photos directly if interested. With an oscillator like the 8607 I think it is worth the effort.
Stay Safe;

Tom Knox

SR Test and Measurement Engineer

Ascent Concepts and Technology

4475 Whitney Place

Boulder Colorado 80305

303-554-0307

actast at hotmail.com

"Peace is not the absence of violence, but the presence of Justice" Both MLK and Albert Einstein

________________________________
From: time-nuts <time-nuts-bounces at lists.febo.com> on behalf of Michael Wouters <michaeljwouters at gmail.com>
Sent: Saturday, June 27, 2020 6:02 AM
To: Discussion of precise time and frequency measurement <time-nuts at lists.febo.com>
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

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