convert.java

主要用于无线传感网络的编写的书籍.对于初学者有着很大的用处

// Written by Kin Sun Ho. October 2005
// This program is used to convert raw temperature samples into the unit of
// degrees   

public class convert{
    
    public static void main(String args[])  {
        int input = (new Integer(args[0])).intValue();
	System.out.println(todegree(input));
	return;
    }

    public static double todegree(int raw) {
        double a       = 0.00130705;
        double b       = 0.000214381;
        double c       = 0.000000093;
        double k       = 273.15;
        double adc_fs  = 1023;
        double r1      = 10*1000;
        double r       = r1*(adc_fs-raw)/raw;
        double rkelvin = a + b*Math.log(r) + c*(Math.log(r))*(Math.log(r))*(Math.log(r));
        double kelvin  = 1/rkelvin;
        return kelvin-k;
    }
}