[time-nuts] Fwd: quartz / liquid nitrogen
alexpcs at ieee.org
Mon Apr 2 23:11:14 EDT 2018
at low temperatures bipolar devices will have reduced gain
-------- Forwarded Message --------
Subject: [time-nuts] quartz / liquid nitrogen
Date: Mon, 2 Apr 2018 12:46:26 -0700
From: Tom Van Baak <tvb at LeapSecond.com>
Reply-To: Tom Van Baak <tvb at leapsecond.com>, Discussion of precise time
and frequency measurement <time-nuts at febo.com>
To: Discussion of precise time and frequency measurement
<time-nuts at febo.com>
Has anyone tried running a quartz oscillator at liquid nitrogen temperatures: -196 C (-321F, 77K)? It's probably impractical commercially, but maybe something of value to a time nut. Would that dramatically lower temperature improve phase noise & short-term performance? Is there a crystal cut that could be optimized for 77 K instead of ~25 C (room) or 60 C (oven)?
If not Nitrogen, how about dry ice (-109F -78C)?
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
This email has been checked for viruses by AVG.
More information about the time-nuts