NTC Thermistor class.
Dependents: FermenterTempArray
Fork of Thermistor by
Diff: NTCThermistor.h
- Revision:
- 2:b052ac698148
- Parent:
- 0:d4198719a504
- Child:
- 3:e9f38dc974f8
diff -r 6b0a4635a55b -r b052ac698148 NTCThermistor.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NTCThermistor.h Tue Sep 09 02:48:51 2014 +0000 @@ -0,0 +1,33 @@ +#ifndef THERMISTOR_H +#define THERMISTOR_H +#include "mbed.h" +#include "math.h" + +class NTCThermistor +{ + public: + /** Create a NTC Thermistor instance + *@param T0 basic temperature[degrees/celsious] + *@param R0 basic resistance[ohm]. Thermistor takes this resistance at basic temperature T0. + *@param B B-parameter. + */ + NTCThermistor(float T0,float R0,float B); + /** Transfer temperature from resistance. + *@param R resitance of NTC thermistor + */ + float trans_R2T(float R); //transfer resistance to temperature(degrees) + private: + float R0_; //basic resisitance of thremister at basic temperature + float T0_; //basic temperature[°C] + float K0_; //basic temperature[K] + float B_; //B constant +}; +#endif +/* +float R2T(float input){ + float K0 = T0+273.0; + float K = (B*K0)/(K0*log(input/R0)+B); + float temp = K-273.0; + return temp; + +}*/ \ No newline at end of file