[time-nuts] quartz thermometers

[Poul-Henning Kamp]

--------
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.

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