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NTC Thermistors - I''m baffled! — Parallax Forums

NTC Thermistors - I''m baffled!

ArchiverArchiver Posts: 46,084
edited 2003-06-17 19:52 in General Discussion
>This would give me two data points. Since the result is a curve, I would
>need more than two (perhaps four?).
>
>Steve


Hi Steve,

Here is a thermistor app note for the Stamp using interpolation.

http://www.emesystems.com/BS2math3.htm#thermistor

The example is for a Unidata thermistor probe, 3kohms at 25 Celsius.
Measurement grade thermistors follow the defined curve very closely,
so a one-point calibration might be enough. Watch out for
self-heating of the thermistor if it is really small.


-- best regards
Tracy Allen
electronically monitored ecosystems
http://www.emesystems.com
mailto:tracy@e...
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