public bool Init()
{
try
{
var firstIdentifyer = 0x0957;
var secondIdentifyer = 0x1718;
var visaBuilder = new StringBuilder();
visaBuilder.AppendFormat("USB0::{0}::{1}::TW54334510::INSTR",
firstIdentifyer.ToString(NumberFormatInfo.InvariantInfo),
secondIdentifyer.ToString(NumberFormatInfo.InvariantInfo));
var initSuccess = boxController.Init(visaBuilder.ToString());
if (initSuccess == true)
{
VdsMotorPotentiometer = new BS350_MotorPotentiometer(boxController, Agilent_ExtensionBox.IO.BOX_AnalogOutChannelsEnum.BOX_AOut_02);
VgMotorPotentiometer = new BS350_MotorPotentiometer(boxController, Agilent_ExtensionBox.IO.BOX_AnalogOutChannelsEnum.BOX_AOut_09);
}
return(initSuccess);
}
catch { return(false); }
}
private void setVoltage(BS350_MotorPotentiometer motorPotentiometer, int voltNum, double voltage, double voltageDev)
{
voltage = Math.Abs(voltage);
var intervalCoarse = voltage * (1.0 - 1.0 / Math.Sqrt(2.0));
double drainVoltageCurr = 0.0,
drainVoltagePrev = 0.0,
factorCoarse = 0.0;
confAIChannelsForDC_Measurement();
accuracyStopWatch.Start();
while (true)
{
var voltages = boxController.VoltageMeasurement_AllChannels(averagingNumberFast);
drainVoltageCurr = Math.Abs(voltages[voltNum]);
var lowerVal = Math.Min(drainVoltageCurr, voltage);
var higherVal = Math.Max(drainVoltageCurr, voltage);
onProgressChanged(this, new ProgressChanged_EventArgs((int)(lowerVal / higherVal * 100.0)));
var speed = minSpeed;
try
{
if (Math.Abs(voltage - drainVoltageCurr) <= 0.05)
{
factorCoarse = (1.0 - Math.Tanh(-1.0 * Math.Abs(voltage - drainVoltageCurr) / intervalCoarse * Math.PI + Math.PI)) / 2.0;
speed = (byte)(minSpeed + (maxSpeed - minSpeed) * factorCoarse);
}
else
{
speed = maxSpeed;
}
}
catch { speed = minSpeed; }
if ((drainVoltageCurr >= Math.Abs(voltage - voltageDev)) &&
(drainVoltageCurr <= Math.Abs(voltage + voltageDev)))
{
motorPotentiometer.StopMotion();
accuracyStopWatch.Stop();
break;
}
else
{
// Implementing voltage set with enchansed accuracy
if (estimationList.Count > estimationCollectionSize)
{
estimationList.RemoveFirst();
}
estimationList.AddLast(new Point(accuracyStopWatch.ElapsedMilliseconds, Math.Abs(drainVoltagePrev - drainVoltageCurr)));
var timeAVG = estimationList.Select(val => val.X).Average();
var voltAVG = estimationList.Select(val => val.Y).Average();
var voltPerMilisecond = timeAVG != 0 ? voltAVG / timeAVG : voltAVG;
var stepTime = (int)(Math.Abs(voltage - drainVoltageCurr) / voltPerMilisecond);
if (drainVoltageCurr > voltage)
{
if (voltageDev >= 0.006 || drainVoltageCurr - voltage > 2.0 * voltageDev)
{
averagingNumberFast = 2;
motorPotentiometer.StartMotion(speed, MotionDirection.cw);
}
else
{
motorPotentiometer.StartMotion(speed, MotionDirection.cw);
Thread.Sleep(stepTime);
motorPotentiometer.StopMotion();
averagingNumberFast = 25;
}
}
else
{
if (voltageDev >= 0.006 || voltage - drainVoltageCurr > 2.0 * voltageDev)
{
averagingNumberFast = 2;
motorPotentiometer.StartMotion(speed, MotionDirection.ccw);
}
else
{
motorPotentiometer.StartMotion(speed, MotionDirection.ccw);
Thread.Sleep(stepTime);
motorPotentiometer.StopMotion();
averagingNumberFast = 25;
}
}
accuracyStopWatch.Restart();
}
drainVoltagePrev = drainVoltageCurr;
}
motorPotentiometer.StopMotion();
}
