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Date: Fri, 6 Mar 2015 11:39:40 -0300
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Subject: Re: [geda-user] [OT] Temperature sensor and control recommendation
From: Adrian Pardini <pardo DOT bsso AT gmail DOT com>
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On 5 March 2015 at 13:21, DJ Delorie <dj AT delorie DOT com> wrote:
> I use a thermocouple to monitor my woodstove, but I don't care so much
> about precision.  I use a DS2760 thermocouple kit from Parallax for
> it, and a high-temp thermocouple probe from Omega.com.
>
> For monitoring my geothermal system, I used RTDs and an MCU's ADC to
> measure them.  I got extra precision by doing each measurement 64
> times and averaging, and the tech who calibrated my geothermal system
> says they're spot-on.
>
> I use the same averaging trick on my thermostats to get 0.1F readings
> on a 1C-rated sensor.  If your sensor isn't noisy enough to use this
> trick, you can always add noise - you're basically building a 1-bit
> ADC.

Thanks, I have already looked at Omega as a sensor provider. I didn't
know about that ic but found the max1403 and max11200, still I'm a bit
wary because I haven't got many successfully experiences trying to buy
or get samples from Maxim.

That trick is quite nice and saved my day a couple of times.




-- 
Adrian.
http://ovejafm.com
http://elesquinazotango.com.ar
http://www.elarteylatecnologia.com.ar