private void button_start_transient_Click(object sender, EventArgs e)
{
this.keithley_command_line.clear();
this.data_grid_view_keithley.Sort(this.data_grid_view_keithley.Columns[0], ListSortDirection.Ascending);
int index = 0;
foreach (DataGridViewRow row in this.data_grid_view_keithley.Rows)
{
if (!check_if_row_is_empty(row))
{
try
{
voltage_params param = new voltage_params();
param.isSweepModeUsed = false;
param.const_voltage = Convert.ToDouble(row.Cells[1].Value.ToString());
Keithley_command command = new Keithley_command(param, row.Cells[3].Value.ToString(), row.Cells[2].Value.ToString(), row.Cells[4].Value.ToString(), row.Cells[5].Value.ToString());
this.keithley_command_line.add_command(index, command);
index++;
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message + " Try another value.");
return;
}
}
}
ObjectDelegate del = new ObjectDelegate(process_keithley_output);
if (this.keithley_thread == null || !this.keithley_thread.IsAlive)
{
this.keithley_thread = new Thread(new ParameterizedThreadStart(this.keithley_work));
this.keithley_thread.Start(del);
}
}
public Keithley_command(voltage_params param, String Duration, String TimeStep, String NPLC, String Range)
{
this.voltage = param;
// if (!this.voltage.isSweepModeUsed && this.voltage.const_voltage > 42)
// throw new Exception("Applied Voltage is higher than maximum allowed 42V.");//page 2-2 of User's Manual - Maximum Applied Voltage
//if(this.voltage.isSweepModeUsed && (Math.Abs(this.voltage.start_voltage) > 42 || Math.Abs(this.voltage.stop_voltage) > 42))
// throw new Exception("Applied Voltage is higher than maximum allowed 42V.");//page 2-2 of User's Manual - Maximum Applied Voltage
this.duration = Convert.ToInt32(Duration);
if(!param.isSweepModeUsed)
if (duration < 1 || duration > 2500) //page 7-7 bottom line
throw new Exception("Time value exceeds the limit 2500s");
this.time_step = Convert.ToDouble(TimeStep.ToString());
if (time_step < 0 || time_step >= 1000) //page 7-6
throw new Exception("Step (Delay) value exceeds the limit");
this.nplc = NPLC; //page 4-5 of instruction manual
switch (Range)// page 4-2 of instruction manual
{
case "2 nA":
this.range = "2e-9";
break;
case "20 nA":
this.range = "2e-8";
break;
case "200 nA":
this.range = "2e-7";
break;
case "2 uA":
this.range = "2e-6";
break;
case "20 uA":
this.range = "2e-5";
break;
case "200 uA":
this.range = "2e-4";
break;
case "2 mA":
this.range = "2e-3";
break;
case "20 mA":
this.range = "2e-2";
break;
default:
break;
}
//Page 7-6 contains autodelay settings
if (this.time_step < delay_nplc_limits[range])
throw new Exception("NPLC is too small for the selected range/delay.");
//Page 4-5 One PLC for 50Hz is 20msec. So, NPLC*20msec < step
if (this.time_step < 0.02 * Double.Parse(this.nplc))
throw new Exception("step is to small for for the selected NPLC.\nOne PLC for 50Hz is 20msec. So, NPLC*20msec < step.\n");
}
public Keithley_command(voltage_params param, String Duration, String TimeStep, String NPLC, String Range)
{
this.voltage = param;
// if (!this.voltage.isSweepModeUsed && this.voltage.const_voltage > 42)
// throw new Exception("Applied Voltage is higher than maximum allowed 42V.");//page 2-2 of User's Manual - Maximum Applied Voltage
//if(this.voltage.isSweepModeUsed && (Math.Abs(this.voltage.start_voltage) > 42 || Math.Abs(this.voltage.stop_voltage) > 42))
// throw new Exception("Applied Voltage is higher than maximum allowed 42V.");//page 2-2 of User's Manual - Maximum Applied Voltage
this.duration = Convert.ToInt32(Duration);
if (!param.isSweepModeUsed)
{
if (duration < 1 || duration > 2500) //page 7-7 bottom line
{
throw new Exception("Time value exceeds the limit 2500s");
}
}
this.time_step = Convert.ToDouble(TimeStep.ToString());
if (time_step < 0 || time_step >= 1000) //page 7-6
{
throw new Exception("Step (Delay) value exceeds the limit");
}
this.nplc = NPLC; //page 4-5 of instruction manual
switch (Range) // page 4-2 of instruction manual
{
case "2 nA":
this.range = "2e-9";
break;
case "20 nA":
this.range = "2e-8";
break;
case "200 nA":
this.range = "2e-7";
break;
case "2 uA":
this.range = "2e-6";
break;
case "20 uA":
this.range = "2e-5";
break;
case "200 uA":
this.range = "2e-4";
break;
case "2 mA":
this.range = "2e-3";
break;
case "20 mA":
this.range = "2e-2";
break;
default:
break;
}
//Page 7-6 contains autodelay settings
if (this.time_step < delay_nplc_limits[range])
{
throw new Exception("NPLC is too small for the selected range/delay.");
}
//Page 4-5 One PLC for 50Hz is 20msec. So, NPLC*20msec < step
if (this.time_step < 0.02 * Double.Parse(this.nplc))
{
throw new Exception("step is to small for for the selected NPLC.\nOne PLC for 50Hz is 20msec. So, NPLC*20msec < step.\n");
}
}
private void button_start_transient_Click(object sender, EventArgs e)
{
this.keithley_command_line.clear();
this.data_grid_view_keithley.Sort(this.data_grid_view_keithley.Columns[0], ListSortDirection.Ascending);
int index = 0;
foreach (DataGridViewRow row in this.data_grid_view_keithley.Rows)
{
if (!check_if_row_is_empty(row))
{
try
{
voltage_params param = new voltage_params();
param.isSweepModeUsed = false;
param.const_voltage = Convert.ToDouble(row.Cells[1].Value.ToString());
Keithley_command command = new Keithley_command(param, row.Cells[3].Value.ToString(), row.Cells[2].Value.ToString(), row.Cells[4].Value.ToString(), row.Cells[5].Value.ToString());
this.keithley_command_line.add_command(index, command);
index++;
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message + " Try another value.");
return;
}
}
}
ObjectDelegate del = new ObjectDelegate(process_keithley_output);
if (this.keithley_thread == null || !this.keithley_thread.IsAlive)
{
this.keithley_thread = new Thread(new ParameterizedThreadStart(this.keithley_work));
this.keithley_thread.Start(del);
}
}
private void agilent_work(object obj)
{
System.Threading.Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("en-US");
try
{
SerialPort agilent = Serial_port_agilent.Instance;
SerialPort keithley = Serial_port_keithley.Instance;
//if (false == Serial_port_agilent.try_to_open_com_port()) return;
if (false == Serial_port_keithley.try_to_open_com_port()) return;
ObjectDelegate del = (ObjectDelegate)obj;
foreach (DataGridViewRow row in this.data_grid_view_agilent.Rows)
{
if (!check_if_row_is_empty(row))
{
//try
{
NumberStyles style = NumberStyles.Number;
voltage_params param = new voltage_params();
param.isSweepModeUsed = true;
param.start_voltage = Double.Parse(row.Cells[1].Value.ToString(), style);
param.stop_voltage = Double.Parse(row.Cells[2].Value.ToString(), style);
param.step_voltage = Double.Parse(row.Cells[3].Value.ToString(), style);
Keithley_command command_keithley = new Keithley_command(param, "0", row.Cells[4].Value.ToString(),
row.Cells[5].Value.ToString(), row.Cells[6].Value.ToString());
stop_keithley();
List<String> command_list = command_keithley.get_command_string();
foreach (String command in command_list)
keithley.WriteLine(command);
String response = param.start_voltage.ToString() + ", " +
param.stop_voltage.ToString() + ", " + param.step_voltage.ToString() + ", ";
var regex_pairs = new Regex(@"[+-][0-9].[0-9]*E[+-][0-9]*");
String fromBuffer = keithley.ReadLine();
MatchCollection MatchList = regex_pairs.Matches(fromBuffer);
while (MatchList.Count == 0)
{
fromBuffer = keithley.ReadLine();
MatchList = regex_pairs.Matches(fromBuffer);
}
response += fromBuffer;
del.Invoke(response);
}
}
}
}
catch (ThreadAbortException abortException)
{
logger.Info("Measurement stopped: " + (string)abortException.ExceptionState);
}
catch (Exception ex)
{
logger.Error("Agilent error: " + ex.ToString());
}
}
private void agilent_work(object obj)
{
System.Threading.Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("en-US");
try
{
SerialPort agilent = Serial_port_agilent.Instance;
SerialPort keithley = Serial_port_keithley.Instance;
//if (false == Serial_port_agilent.try_to_open_com_port()) return;
if (false == Serial_port_keithley.try_to_open_com_port())
{
return;
}
ObjectDelegate del = (ObjectDelegate)obj;
foreach (DataGridViewRow row in this.data_grid_view_agilent.Rows)
{
if (!check_if_row_is_empty(row))
{
//try
{
NumberStyles style = NumberStyles.Number;
voltage_params param = new voltage_params();
param.isSweepModeUsed = true;
param.start_voltage = Double.Parse(row.Cells[1].Value.ToString(), style);
param.stop_voltage = Double.Parse(row.Cells[2].Value.ToString(), style);
param.step_voltage = Double.Parse(row.Cells[3].Value.ToString(), style);
Keithley_command command_keithley = new Keithley_command(param, "0", row.Cells[4].Value.ToString(),
row.Cells[5].Value.ToString(), row.Cells[6].Value.ToString());
stop_keithley();
List <String> command_list = command_keithley.get_command_string();
foreach (String command in command_list)
{
keithley.WriteLine(command);
}
String response = param.start_voltage.ToString() + ", " +
param.stop_voltage.ToString() + ", " + param.step_voltage.ToString() + ", ";
var regex_pairs = new Regex(@"[+-][0-9].[0-9]*E[+-][0-9]*");
String fromBuffer = keithley.ReadLine();
MatchCollection MatchList = regex_pairs.Matches(fromBuffer);
while (MatchList.Count == 0)
{
fromBuffer = keithley.ReadLine();
MatchList = regex_pairs.Matches(fromBuffer);
}
response += fromBuffer;
del.Invoke(response);
}
}
}
}
catch (ThreadAbortException abortException)
{
logger.Info("Measurement stopped: " + (string)abortException.ExceptionState);
}
catch (Exception ex)
{
logger.Error("Agilent error: " + ex.ToString());
}
}