/// <summary>
/// <c>RunExperiment</c> is the main method of the <c>ConductivityExperiment</c>, it manages
/// all instruments to reach the required functionality.
/// </summary>
/// <param name="expParms">Experiment parameters passed by the user interface and set by the user.</param>
/// <param name="pidParms">PID parameters that can be changed by the user.</param>
/// <returns>If the experiment terminates normally, <c>true</c> is returned.</returns>
public bool RunExperiment(Parameters expParms, PID.Controller.Parameters pidParms)
{
WindowsFormsApplication1.frmInterface mainform = new WindowsFormsApplication1.frmInterface();
// WindowsFormsApplication1.ParserClass ParserClass_ = new WindowsFormsApplication1.ParserClass();
this.runningExperiment = true;
/* experiment always starts in the phase 1 */
Contract.Requires(phase == Phases.PHASE1);
//float T; /* temperature measured in the data acquisition */
float lastT = 0; /* temperature before current one */
//float rate; /* rate at which the temperature varies each time interval */
float desiredRate = expParms.desiredRate;
float envT = expParms.envTemperature;
Limits Tlims = expParms.temperatureLims;
float V_PowerSupply = 0; //expParms.amperimeterVoltage0; /* voltage value to be sent to the power supply */
int time = 0, dt = expParms.deltaTime; /* miliseconds */
//float R = 0, i, V; /* resistance, current and voltage in the sample */
float err = 0; /* error from desired rate */
int counter = 0; /*counter*/
Measurement measure;
MessageBoxButtons buttons = MessageBoxButtons.OK;
string caption = "Alerta";
System.Console.Write("Start Experiment\n");
pid = new PID.Controller(pidParms);
file.Write(expParms);
file.Write("\n"+Measurement.header);
Init(expParms.amperimeterVoltage0);
do {
/*i = ampere.Read();
V = ampere.readVoltage();
T = data.Read();
rate = (T - lastT) / (dt * 60); /* Celsius degree / sec */
/*
Contract.Invariant(i > 0);
R = V / i;*/
measure = this.Read(lastT, time);
// list changes the status here, listeners are
// interested in this event
list.Add(measure);
file.Write(measure);
// System.Console.Write(measure);
float Strtime = measure.getTime();
float StrRate = measure.getRate();
float StrT = measure.getT();
float StrR = measure.getR();
float[] measuresforChart = new float[] { measure.getTime(), measure.getRate(), measure.getT(), measure.getR() };
float[] measuresforPIDChart = new float[] { measure.getTime(), (StrT - lastT) / dt };
if (this.mainform != null)
{
this.mainform.setStrValue(Strtime.ToString(), this.mainform.lblTime);
this.mainform.setStrValue(StrRate.ToString(), this.mainform.lblSampleCurrent);
this.mainform.setStrValue(StrT.ToString(), this.mainform.lblTemperature);
this.mainform.setStrValue(StrR.ToString(), this.mainform.lblResistorCurrent);
this.mainform.SetChartValues(measuresforChart, this.mainform.chart1, counter);
this.mainform.SetChartValues(measuresforPIDChart, this.mainform.chart2, counter);
}
/*
* In the freezing phase temperature is not controlled
* by PID because the rate of decreasing is very high
* and the power supply will change the voltage every
* time
*/
if (phase != Phases.PHASE2 || phase != Phases.PHASE4)
{
err = desiredRate - measure.getRate();
lastT = measure.getT();
V_PowerSupply = V_PowerSupply * ( (desiredRate - pid.output(err, dt*60)) / desiredRate);
heater.Send(V_PowerSupply);
}
if ((measure.getT() > Tlims.max && (phase == Phases.PHASE1 || phase == Phases.PHASE3))
|| (measure.getT() < Tlims.min && phase == Phases.PHASE2))
phase++;
System.Threading.Thread.Sleep(dt);
time += dt;
counter++;
if (phase != Phases.PHASE4 && measure.getT() >= Tlims.max)
{
MessageBox.Show("Iniciar fase de resfriamento. Clique OK após o procedimento.", caption, buttons);
}
} while (this.runningExperiment);
//while (phase != Phases.PHASE4 && measure.getT() < envT && this.runningExperiment);
file.Close();
Halt();
this.runningExperiment = false;
return true;
}
/// <summary>
/// <c>RunExperiment</c> is the main method of the <c>ConductivityExperiment</c>, it manages
/// all instruments to reach the required functionality.
/// </summary>
/// <param name="expParms">Experiment parameters passed by the user interface and set by the user.</param>
/// <param name="pidParms">PID parameters that can be changed by the user.</param>
/// <returns>If the experiment terminates normally, <c>true</c> is returned.</returns>
public bool RunExperiment(Parameters expParms, PID.Controller.Parameters pidParms)
{
this.runningExperiment = true;
/* experiment always starts in the phase 1 */
Contract.Requires(phase == Phases.PHASE1);
//float T; /* temperature measured in the data acquisition */
float lastT = 0; /* temperature before current one */
//float rate; /* rate at which the temperature varies each time interval */
float desiredRate = expParms.desiredRate;
float envT = expParms.envTemperature;
Limits Tlims = expParms.temperatureLims;
float V_PowerSupply = 0; /* voltage value to be sent to the power supply */
int time = 0, dt = 100; /* miliseconds */
//float R = 0, i, V; /* resistance, current and voltage in the sample */
float err = 0; /* error from desired rate */
Measurement measure;
System.Console.Write("Start Experiment\n");
pid = new PID.Controller(pidParms);
ExportToFile(fullpath, expParms.ToString()); //fileacq.Write(expParms);
ExportToFile(fullpath, "\n" + Measurement.header); //fileacq.Write("\n" + Measurement.header);
if (Init(expParms.amperimeterVoltage0))
{
do
{
/*i = ampere.Read();
V = ampere.readVoltage();
T = data.Read();
rate = (T - lastT) / (dt * 60); /* Celsius degree / sec */
/*
Contract.Invariant(i > 0);
R = V / i;*/
measure = this.Read(lastT, time);
// list changes the status here, listeners are
// interested in this event
list.Add(measure);
fileacq.Write(measure);
System.Console.Write(measure);
/*
* In the freezing phase temperature is not controlled
* by PID because the rate of decreasing is very high
* and the power supply will change the voltage every
* time
*/
if (phase != Phases.PHASE2 || phase != Phases.PHASE4)
{
err = desiredRate - measure.getRate();
lastT = measure.getT();
V_PowerSupply = V_PowerSupply * ((desiredRate - pid.output(err, dt * 60)) / desiredRate);
heater.Send(V_PowerSupply);
}
if ((measure.getT() > Tlims.max && (phase == Phases.PHASE1 || phase == Phases.PHASE3))
|| (measure.getT() < Tlims.min && phase == Phases.PHASE2))
phase++;
System.Threading.Thread.Sleep(dt);
time += dt;
} while (phase != Phases.PHASE4 && measure.getT() < envT && this.runningExperiment);
fileacq.Close();
Halt();
this.runningExperiment = false;
return true;
}
else return false;
}