[time-nuts] Temperature sensors and bridge amps
phk at phk.freebsd.dk
Fri Nov 12 11:11:27 UTC 2010
In message <4CDD1FCE.4050108 at xtra.co.nz>, Bruce Griffiths writes:
>Its usually better to use an AC bridge (to minimise the effect of
>thermoemfs) or equivalent technique with lower sensor dissipation.
Hehe, I just finished doodleing an idea to use a chopper scheme to
cancel out seebek effects and op-amp offset...
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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