double ConnectionFSC::GetTempPT1000 ( double  R ) const

inlineprivate

Definition at line 64 of file fscctrl.cc.

    {
        // This is precise within the range 5degC and 25degC
        // by 3e-3 degC. At 0degC and 30degC it overestimates the
        // temperature by 0.025 degC. At -10degC it is ~0.9degC
        // and at 40degC ~0.05degC.
        const double x = R/1000;
        return -193.804 + 96.0651*x + 134.673*x*x - 36.9091*x*x*x;

        //for a reasonable range:
        // R=970 -> -7.6 degC
        // R=1300 -> 77.6 degC

        //const double R0 = 1000; // 1kOhm
        //const double a = 3.893e-3;
        //return (R/R0 - 1)/a;
    }