From 6e7ff37be658a7473747b84ade6acb05e9d54a01 Mon Sep 17 00:00:00 2001 From: Fredrik Tolf Date: Wed, 27 Aug 2008 23:03:25 +0200 Subject: [PATCH] Corrected the convcycle comments. --- kokare.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/kokare.c b/kokare.c index f98fd96..8b3c2ba 100644 --- a/kokare.c +++ b/kokare.c @@ -228,10 +228,17 @@ void convcycle(void) * Theoretically: * t = RC * ln(2) => R = t / (C * ln(2)) * R = A * exp(B / T) => T = B / ln(R / A) - * T = B / ln(R / (A * C * ln(2))) - * In the following: + * T = B / ln(t / (A * C * ln(2))) + * Where: + * t = The measured time (s) + * R = The resistance of the thermistor (Ohm) + * C = The capacitance of the capacitor (F) + * T = The temperature (K) + * A, B are the thermistor-specific constants + * + * In the following code: * a = ttimea as float - * C = 1e6 / (A * C * ln(2)) + * C = 1e-6 / (A * C * ln(2)) * ra = a * C * l = ln(ra) * t = B / l -- 2.11.0