- #36
Phrak
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skeptic2 said:Using that formula: 1/T = 1/To + (1/B)*ln(R/Ro) I get B = ln(R/Ro)/(1/T - 1/To).
Substituting values, and using 298 and 313 instead of 298.15 and 313.15, I get B = 5301.947. Using 298.15 and 313.15, B = 5307.158.
skeptic, if you calculated your B correctly, and plug 298 into T, you get 2815 ohms. But it should be 2815 ohms at 25C. See how it goes? It's just curve fitting though two data points.