diff --git a/Electric/RTD/PT100.cs b/Electric/RTD/PT100.cs
new file mode 100644
index 0000000..109c8c7
--- /dev/null
+++ b/Electric/RTD/PT100.cs
@@ -0,0 +1,70 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Calculations.Electric.TemperatureSensorsRecalculation
+{
+ public static class PT100
+ {
+ private static readonly decimal KoeficientA = 0.0039083M;
+ private static readonly decimal KoeficientB = -0.0000005775M;
+ private static readonly decimal KoeficientC = -0.000000000004183M;
+
+
+ ///
+ /// Recalculate temperature to PT100 Resistance
+ ///
+ /// Temperature in °C
+ /// Resistance
+ public static decimal TemperatureToResistance(decimal temperature)
+ {
+ if (temperature < 0)
+ {
+ return 100 * (1 + KoeficientA * temperature + KoeficientB * (decimal)Math.Pow((double)temperature, 2) + KoeficientC * (decimal)Math.Pow((double)temperature, 3) * (temperature - 100));
+ }
+ else
+ {
+ return 100 * (1 + KoeficientA * temperature + KoeficientB * (decimal)Math.Pow((double)temperature, 2));
+ }
+ }
+
+ ///
+ /// Recalculate PT100 resistance to Temperature
+ ///
+ /// Resistance PT100
+ /// Temperature in °C
+ public static double ResistanceToTemperature(double resistance)
+ {
+ return (Math.Sqrt((double)KoeficientB * resistance - 100 * (double)KoeficientB + 25 * Math.Pow((double)KoeficientA, 2)) - 5 * (double)KoeficientA) / (double)(10 * KoeficientB);
+ }
+
+ ///
+ /// Recalculate PT100 resistance to Temperature
+ ///
+ /// Resistance PT100
+ /// Temperature in °C
+ public static double ResistanceToTemperature(decimal resistance)
+ {
+ return ResistanceToTemperature((double)resistance);
+ }
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ }
+}
diff --git a/Electric/RTD/PT1000.cs b/Electric/RTD/PT1000.cs
new file mode 100644
index 0000000..332680e
--- /dev/null
+++ b/Electric/RTD/PT1000.cs
@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Calculations.Electric.RTD
+{
+ public static class PT1000
+ {
+ private static readonly decimal KoeficientA = 0.0039083M;
+ private static readonly decimal KoeficientB = -0.0000005775M;
+ private static readonly decimal KoeficientC = -0.000000000004183M;
+
+
+ ///
+ /// Recalculate temperature to PT1000 Resistance
+ ///
+ /// Temperature in °C
+ /// Resistance PT1000
+ public static decimal TemperatureToResistance(decimal temperature)
+ {
+ if (temperature < 0)
+ {
+ return 1000 * (1 + KoeficientA * temperature + KoeficientB * (decimal)Math.Pow((double)temperature, 2) + KoeficientC * (decimal)Math.Pow((double)temperature, 3) * (temperature - 100));
+ }
+ else
+ {
+ return 1000 * (1 + KoeficientA * temperature + KoeficientB * (decimal)Math.Pow((double)temperature, 2));
+ }
+ }
+
+ ///
+ /// Recalculate PT1000 resistance to Temperature
+ ///
+ /// Resistance PT1000
+ /// Temperature in °C
+ public static double ResistanceToTemperature(double resistance)
+ {
+ return (Math.Sqrt((double)KoeficientB * (resistance / 10) - 100 * (double)KoeficientB + 25 * Math.Pow((double)KoeficientA, 2)) - 5 * (double)KoeficientA) / (double)(10 * KoeficientB);
+ }
+
+ ///
+ /// Recalculate PT1000 resistance to Temperature
+ ///
+ /// Resistance PT1000
+ /// Temperature in °C
+ public static double ResistanceToTemperature(decimal resistance)
+ {
+ return ResistanceToTemperature((double)resistance);
+ }
+
+ }
+}