public static double IBM_PBM(SweepData sweepData, double P_Test)
{
double PBM = sweepData.powers.Aggregate((cur, next) => Math.Abs(P_Test - cur) < Math.Abs(P_Test - next) ? cur : next);
int i = sweepData.powers.IndexOf(PBM);
return(sweepData.ibms.ElementAt(i));
}
public static double IBM_Track(SweepData sweepData, double I_OP_Min, double I_OP_Max)
{
int min = sweepData.setcurrents.IndexOf(I_OP_Min);
int max = sweepData.setcurrents.IndexOf(I_OP_Max);
double num = sweepData.ibms.ElementAt(min) / sweepData.powers.ElementAt(min);
double denom = sweepData.ibms.ElementAt(max) / sweepData.powers.ElementAt(max);
return(num / denom);
}
public async static Task <SweepData> SweepTest(double I_Start, double I_Stop, double I_Step, ProgressBar pb)
{
var progress = new Progress <double>(value => pb.Value = value);
Instruments.Instance.TOSALimits();
Instruments.Instance.ChannelPower(1, true);
Instruments.Instance.ChannelPower(2, true);
Instruments.Instance.ChannelPower(3, true);
SweepData sweepData = new SweepData();
int count = (int)((I_Stop - I_Start) / I_Step);
double current_Iterator = I_Start;
await Task.Run(() =>
{
for (int i = 0; i <= count; i++)
{
((IProgress <double>)progress).Report(100 * ((double)i / (double)count));
Instruments.Instance.SourceCurrent(1, current_Iterator);
Instruments.Instance.SourceVoltage(2, 0);
Instruments.Instance.SourceVoltage(3, 0);
//Debug.WriteLine("Source Current: " + current_Iterator);
double c = Instruments.Instance.GetCurrent(1);
//Debug.Print("Source Current: {0}", c);
double v = Instruments.Instance.GetVoltage(1);
//Debug.Print("Voltage: {0}", v);
sweepData.setcurrents.Add(Math.Round(current_Iterator, 3));
sweepData.currents.Add(c * 1000);
sweepData.voltages.Add(v);
double p = Instruments.Instance.GetCurrent(3) / RESPONSIVITY;
//Debug.Print("Power: {0}", p);
double ibm = Instruments.Instance.GetCurrent(2);
//Debug.Print("ibm: {0}", ibm);
//Debug.Print("{0}, {1}, {2}, {3}, {4},", current_Iterator, c, v, p, ibm);
sweepData.powers.Add(p * 1000);
sweepData.ibms.Add(ibm * 1000);
//Debug.Print("");
current_Iterator += I_Step;
}
});
Instruments.Instance.ChannelPower(1, false);
Instruments.Instance.ChannelPower(2, false);
Instruments.Instance.ChannelPower(3, false);
return(sweepData);
}
public static double ThresholdCurrent(SweepData sweepData, double I_OP_Min, double I_OP_Max)
{
List <double> currents = sweepData.currents;
List <double> powers = sweepData.powers;
double b;
double m = FindSlope(currents, powers, I_OP_Min, I_OP_Max, out b);
return(-b / m);
}
private async void Sweep()
{
TOSADevice device = d as TOSADevice;
TOSAOutput output = o as TOSAOutput;
bool sweepResult = true;
SweepData sweepData = await TestCalculations.SweepTest(device.I_Start, device.I_Stop, device.I_Step, sweepProgress);
sd = sweepData;
double r = TestCalculations.FindSlope(sweepData.currents, sweepData.voltages, device.I_OP_Min, device.I_OP_Max) * 1000;
resistance.Text = r.ToString("F") + " Ω";
bool R_Pass = (r >= device.RS_Min && r <= device.RS_Max);
output.RS = r;
output.RS_Pass = R_Pass;
if (!R_Pass)
{
resistance.Foreground = Brushes.OrangeRed;
sweepResult = false;
}
double se = TestCalculations.FindSlope(sweepData.currents, sweepData.powers, device.I_OP_Min, device.I_OP_Max);
slopeEfficiency.Text = se.ToString("F");
bool SE_Pass = (se >= device.SE_Min && se <= device.SE_Max);
output.SE = se;
output.SE_Pass = SE_Pass;
if (!SE_Pass)
{
slopeEfficiency.Foreground = Brushes.OrangeRed;
sweepResult = false;
}
double ith = TestCalculations.ThresholdCurrent(sweepData, device.I_OP_Min, device.I_OP_Max);
thresholdCurrent.Text = ith.ToString("F") + " mA";
bool ITH_Pass = (ith >= device.Ith_Min && ith <= device.Ith_Max);
output.Ith = ith;
output.Ith_Pass = ITH_Pass;
measurementPanel.Visibility = Visibility.Visible;
if (!ITH_Pass)
{
thresholdCurrent.Foreground = Brushes.OrangeRed;
sweepResult = false;
}
double p_test = sweepData.powers.ElementAt(sweepData.setcurrents.IndexOf(device.I_Test));
testPower.Text = p_test.ToString("F") + " mW";
bool P_Test_Pass = (p_test >= device.P_Test_FC_Min && p_test <= device.P_Test_FC_Max);
output.P_Test_FC = p_test;
output.P_Test_FC_Pass = P_Test_Pass;
if (!P_Test_Pass)
{
testPower.Foreground = Brushes.OrangeRed;
sweepResult = false;
}
double popct = p_test / output.P_Test_OB;
POPCT.Text = (100 * popct).ToString("F") + " %";
bool POPCT_Pass = (popct >= device.POPCT_Min);
output.POPCT = popct;
output.POPCT_Pass = POPCT_Pass;
if (!POPCT_Pass)
{
testPower.Foreground = Brushes.OrangeRed;
sweepResult = false;
}
double ibm = TestCalculations.IBM_PBM(sweepData, device.P_BM_Test);
monitorCurrent.Text = ibm.ToString("F") + " mA";
bool IBM_Pass = (ibm >= device.IBM_Min && ibm <= device.IBM_Max);
output.I_BM_P_BM_Test = ibm;
output.I_BM_P_BM_Test_Pass = IBM_Pass;
if (!IBM_Pass)
{
monitorCurrent.Foreground = Brushes.OrangeRed;
sweepResult = false;
}
double pmin = sweepData.powers.ElementAt(sweepData.setcurrents.IndexOf(device.I_OP_Min));
double pmax = sweepData.powers.ElementAt(sweepData.setcurrents.IndexOf(device.I_OP_Max));
double ibmslope = TestCalculations.FindSlope(sweepData.powers, sweepData.ibms, pmin, pmax);
ibmSlope.Text = ibmslope.ToString("F") + " A/W";
output.I_BM_Slope = ibmslope;
double ibmtrack = TestCalculations.IBM_Track(sweepData, device.I_OP_Min, device.I_OP_Max);
ibmTrack.Text = ibmtrack.ToString("F");
bool IBM_Track_Pass = (ibmtrack >= device.IBM_Tracking_Min && ibmtrack <= device.IBM_Tracking_Max);
output.IBM_Track = ibmtrack;
output.I_BM_Track_Pass = IBM_Track_Pass;
if (!IBM_Track_Pass)
{
ibmTrack.Foreground = Brushes.OrangeRed;
sweepResult = false;
}
measurementPanel.Visibility = Visibility.Visible;
var w = Window.GetWindow(this) as MainWindow;
if (sweepResult)
{
passed = true;
testMessage.Text = "Test Passed";
testMessage.Foreground = Brushes.ForestGreen;
StartTestButton.Content = "Next step";
d = device;
o = output;
w.device = d;
w.output = o;
}
else
{
testMessage.Text = "Test Failed";
testMessage.Foreground = Brushes.OrangeRed;
if (numTries >= 3)
{
StartTestButton.Content = "Go home";
output.Result = false;
MainWindow.Conn.SaveTOSAOutput(output);
}
else
{
StartTestButton.Content = "Retry test";
}
}
SaveLIButton.Visibility = Visibility.Visible;
}