private void tmrSampling_Tick(object sender, EventArgs e)
{
double voltage = 0.0;
if (bWithHardware)
{
voltage = USBInterface.AnalogIn[cAnalogIn1, cRange];
}
else // without hardware
{
// Max 2,49 V Min =0,415V
// Zufallszahl im Bereich 0,415V bis 2,49V
//voltage = (2.49 - 0.415) * RandomVoltage.NextDouble() + 0.415;
// 2.49 - 0.42 = 2.07 /2 = 1.035
// Verschieben in Y-Richtung 1.035 + 0.415 = 1.45
voltage = 1.035 * Math.Sin(SinCount) + 1.45;
SinCount = (SinCount + Math.PI * 3 / 180.0);
}
voltage = Math.Max(0.415, Math.Min(2.49, voltage));
lblVoltage.Text = voltage.ToString("#0.000 V");
// Umrechungsformel mit Excel berechnet
//double distance = 29.044 * Math.Pow(voltage, -1.162);
double distance = 35 * Math.Sin(SinCount) + 45;
lblDistance.Text = distance.ToString("#0.0 cm");
double diff = 0;
if (MVList.Count > 0)
{
diff = distance - MVList[MVList.Count - 1];
}
MVListDiff.Add(diff);
lboDiffValues.Items.Add(diff);
MVList.Add(distance);
while (MVList.Count > cMaxNumOfMV)
{
MVList.RemoveAt(0);
MVListDiff.RemoveAt(0);
}
// PictureBox ungültig setzen und daher wird die Paint-Methode zum Neuzeichen aufgerufen
picChart.Invalidate();
}
private void tmrSampling_Tick(object sender, EventArgs e)
{
double voltage = 0.0;
double mv2 = 0;
if (bWithHardware)
{
voltage = (double)(USBInterface.AnalogIn[cAnalogIn1, cRange]);
}
else // No hardware -> simulation
{
// Randomnumber from 0.42 to 2.5 V
voltage = RandomVoltage.NextDouble() * (2.5 - 0.42) + 0.42;
//mv2 = 100 * Math.Sin(((double)DateTime.Now.Millisecond) / 1000.0 *2 * Math.PI);
}
// Calculated with Excel
double distance = 29.071 * Math.Pow(voltage, -1.159);
lblVoltage.Text = voltage.ToString("#0.000 V");
lblDistance.Text = distance.ToString("#0.0 cm");
MVList.Add(voltage);
cMinMV = MVList.Min() - 0.2;
cMaxMV = MVList.Max() + 0.2;
//Differential der Funktion
// Aktueller Wert minus Vorgänger = Änderung des Abstandes[m] /ms
if (MVList.Count >= 2)
{
mv2 = 10 * (MVList[MVList.Count - 1] - MVList[MVList.Count - 2]) / tmrSampling.Interval;
}
else
{
mv2 = 10 * (MVList[MVList.Count - 1] - 0) / tmrSampling.Interval;
}
MVList2.Add(mv2);
// Adapt Minimum and Maximum
//double delta = (cMaxMV2 - cMinMV2) / NumOfScaleLines;
while (mv2 < cMinMV2)
{
cMinMV2 -= 2;
}
while (mv2 > cMaxMV2)
{
cMaxMV2 += 2;
}
while (MVList.Count > cMaxNumOfMV)
{
MVList.RemoveAt(0);
}
while (MVList2.Count > cMaxNumOfMV)
{
MVList2.RemoveAt(0);
}
pboChart.Invalidate();
}