[time-nuts] quartz thermometers
Poul-Henning Kamp
phk at phk.freebsd.dk
Sat Mar 12 06:10:28 EST 2016
--------
In message <F5BCC87F-8FC2-4426-8986-4DA42047D606 at gmail.com>, Neville Michie wri
tes:
>but I could never accept that a vacuum mounted quartz crystal would
>be closely enough thermally coupled to whatever was having its
>temperature measured.
That is precisely why HP could make the three and four digit claim
for their quartz thermometers: Compared to resitive temperature
sensors, practically no energy is dissipated in/by the crystal.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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