Hi,
I have downloaded an example code to calculate object temperature which was posted in another thread. Below is part of example code.
// Calulate temperature from the TMP006 datasheet
long double calculateTemp(int Tdie, int Vobj){
long double Vobj2 = (double)Vobj*.00000015625;
long double Tdie2 = (double)Tdie*.03125 + 273.15;
long double S0 = 2.24*pow(10,-14); // Tommy's S0
//long double S0 = 6.033*pow(10,-14);
long double a1 = 1.70*pow(10,-3);
long double a2 = -2.0*pow(10,-5);
long double b0 = -2.57*pow(10,-5);
long double b1 = -9.48*pow(10,-8);
long double b2 = 2.26*pow(10,-10);
long double c2 = 0;
long double Tref = 298.15;
long double S = S0*(1+a1*(Tdie2 - Tref)+a2*pow((Tdie2 - Tref),2));
long double Vos = b0 + b1*(Tdie2 - Tref) + b2*pow((Tdie2 - Tref),2);
long double fObj = (Vobj2 - Vos) + c2*pow((Vobj2 - Vos),2);
long double Tobj = pow(pow(Tdie2,4) + (fObj/S),.25);
return (Tobj - 273.15);
}
I found the parameters a1, a2 and so on were different from those stated in SBOU107. Which one is right?
Thanks.
BRs,
Luo
