/// <summary>
/// Try open junction by the EM, by calling EMOpenJunction.
/// if min voltage exceeded without the junction being opened, do a few steps by the stepper motor, then retry EM (recursion).
/// </summary>
/// <param name="settings"></param>
/// <returns></returns>
private bool EMTryOpenJunction(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
//
// if the EM reached voltage 0 without opening the junction,
// return to higher voltage on EM, do some steps by the stepper motor and retry opening by EM.
//
if (!EMOpenJunction(settings, worker, e))
{
m_electroMagnet.ReachEMVoltageGradually(m_electroMagnet.MinDelay, c_initialEMVoltage);
MoveStepsByStepperMotor(StepperDirection.UP, 20);
return EMTryOpenJunction(settings, worker, e);
}
return true;
}
/// <summary>
/// Close the junction asynchronously by the ElectroMagnet
/// </summary>
/// <param name="settings"></param>
private void EMBeginCloseJunction(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
EMCloseJunctionMethodDelegate emCloseJunctionDelegate = new EMCloseJunctionMethodDelegate(EMTryCloseJunction);
AsyncCallback callback = new AsyncCallback(EMEndCloseJunction);
IAsyncResult asyncResult = emCloseJunctionDelegate.BeginInvoke(settings, worker, e, callback, emCloseJunctionDelegate);
}
/// <summary>
/// Close the junction by the ElectroMagnet.
/// If max voltage exceeded without the junction being closed, return false.
/// </summary>
/// <param name="settings">The settings to be used to open the junction</param>
private bool EMCloseJunction(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
//
// Set the direction of the movement
// And configure the first setpper delay (shorter) - faster movement
//
m_electroMagnet.Direction = StepperDirection.DOWN;
m_electroMagnet.Delay = settings.ElectromagnetSettings.EMFastDelayTime;
//
// Set false to stop operation flag
// Keep polling the value until it is abit different than 0.
// This is a problem of instability with Flaxer's card.
//
double initialVoltage = AnalogIn(0);
while (initialVoltage == 0.0)
{
initialVoltage = AnalogIn(0);
}
m_quitJunctionClosingOperation = false;
bool isDelayedChanged = false;
//
// Until we've not been signaled from outer thread to stop we'll continue moving up.
//
while (!m_quitJunctionClosingOperation)
{
//
// Cancel the operatin if user asked for
//
if (worker.CancellationPending == true)
{
e.Cancel = true;
break;
}
if (!m_electroMagnet.MoveSingleStep())
{
//
// if min Votlage on EM was exceeded return false.
//
return false;
}
double currentVoltage = AnalogIn(0);
//
// If voltgae had been changed in 0.0001% then switch to slow mode
// Note that voltage can be negative so we must take the absoulute value
// The two numbers must be of the same sign in order for us to compare them
//
if (!isDelayedChanged && (currentVoltage * initialVoltage > 0) && (Math.Abs(currentVoltage) > Math.Abs(initialVoltage) * 10))
{
m_electroMagnet.Delay = settings.ElectromagnetSettings.EMSlowDelayTime;
isDelayedChanged = true;
}
//
// If hold-on trigger was exceeded, wait 10 ms and check if still true.
//
if (settings.ElectromagnetSettings.IsEMHoldOnEnable && Math.Abs(currentVoltage) > Math.Abs(settings.ElectromagnetSettings.EMHoldOnMaxVoltage * 1.1))
{
Thread.Sleep(10);
if (Math.Abs(currentVoltage) > Math.Abs(settings.ElectromagnetSettings.EMHoldOnMaxVoltage * 1.1))
{
//
// trigger was truely exceeded. try to hold on to a certain junction voltage.
//
if (!StabilizeJunction(currentVoltage, settings.ElectromagnetSettings.EMHoldOnMaxVoltage, settings.ElectromagnetSettings.EMHoldOnMinVoltage))
{
return false;
}
else
{
return true;
}
}
}
Thread.Sleep(m_electroMagnet.Delay);
}
return true;
}
/// <summary>
/// Open the junction by the ElectroMagnet.
/// If min voltage exceeded without the junction being opened, return false.
/// </summary>
/// <param name="settings">The settings to be used to open the junction</param>
private bool EMOpenJunction(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
//
// Set the direction of the movement
// And configure the first setpper delay (shorter) - faster movement
//
m_electroMagnet.Direction = StepperDirection.UP;
m_electroMagnet.Delay = settings.ElectromagnetSettings.EMFastDelayTime;
//
// Read the initial voltgae before we've done anything
//
double initialVoltage = AnalogIn(0);
bool isDelayedChanged = false;
m_quitJunctionOpenningOperation = false;
//
// Until we've not been signaled from outer thread to stop we'll continue moving up.
//
while (!m_quitJunctionOpenningOperation)
{
//
// Cancel the operatin if user asked for
//
if (worker.CancellationPending == true)
{
e.Cancel = true;
break;
}
if (!m_electroMagnet.MoveSingleStep())
{
//
// if min Votlage on EM was exceeded return false.
//
return false;
}
double currentVoltage = AnalogIn(0);
//
// If voltgae had been changed in 0.0001% then switch to slow mode
// Note that voltage can be negative so we must take the absoulute value
//
if (!isDelayedChanged && (Math.Abs(currentVoltage) < Math.Abs(initialVoltage) * 0.9999))
{
m_electroMagnet.Delay = settings.ElectromagnetSettings.EMSlowDelayTime;
isDelayedChanged = true;
}
//
// If hold-on trigger was exceeded, wait 10 ms and check if still true.
//
if (settings.ElectromagnetSettings.IsEMHoldOnEnable && Math.Abs(currentVoltage) < Math.Abs(settings.ElectromagnetSettings.EMHoldOnMaxVoltage * 1.1))
{
Thread.Sleep(10);
if (Math.Abs(currentVoltage) < Math.Abs(settings.ElectromagnetSettings.EMHoldOnMaxVoltage * 1.1))
{
//
// trigger was truely exceeded. try to hold on to a certain junction voltage.
//
if (!StabilizeJunction(currentVoltage, settings.ElectromagnetSettings.EMHoldOnMaxVoltage, settings.ElectromagnetSettings.EMHoldOnMinVoltage))
{
return false;
}
else
{
return true;
}
}
}
Thread.Sleep(m_electroMagnet.Delay);
}
return true;
}
/// <summary>
/// Aquire data from an open position while closing the junction
/// </summary>
/// <param name="settings"></param>
/// <param name="worker"></param>
/// <param name="e"></param>
/// <returns></returns>
private bool PerformMakeJunctionCycles(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
double[,] dataAquired;
bool isCancelled = false;
int finalFileNumber = settings.GeneralSettings.CurrentFileNumber;
List<IDataChannel> physicalChannels = new List<IDataChannel>();
//
// Since we set the gain to E5 when configuring the task
// it is time to set it back to the desired one.
//
int gainPower;
Int32.TryParse(settings.GeneralSettings.Gain, out gainPower);
m_amplifier.ChangeGain(gainPower);
//
// Change the gain power to 5 before reaching contact
// to ensure full contact current
//
if (settings.GeneralSettings.UseDefaultGain)
{
m_amplifier.ChangeGain(5);
}
//
// Configure the gain to the desired one if we changed it to E5 for reaching contact
//
if (settings.GeneralSettings.UseDefaultGain)
{
m_amplifier.ChangeGain(gainPower);
}
//
// Before stat measuring, bring to contact.
// Use stepper motor only since we could be far away from reaching contact
// It is an important step since we can't be sure in what position we are currently standing.
//
TryObtainShortCircuit(settings.GeneralSettings.ShortCircuitVoltage, settings.GeneralSettings.UseShortCircuitDelayTime,settings.GeneralSettings.ShortCircuitDelayTime, worker, e);
//
// Now we can begin our measurements cycles
//
for (int i = 0; i < settings.GeneralSettings.TotalNumberOfCycles; i++)
{
//
// Cancel the operatin if user asked for
//
if (worker.CancellationPending == true)
{
e.Cancel = true;
break;
}
//
// Turn off the laser before we open the junction
//
if (settings.LaserSettings.IsLaserOn)
{
m_LaserController.TurnOff();
Thread.Sleep(5000);
}
//
// Before we start the measurement cycles we reach to contact and then open
// It is important to reach to contact before trying to open since
// there could be a situation where the junction was not closed entirely in the previous
// cycle and so it still seems open where actually it is not.
// No need to do it in the first cycle since this is done outside the for loop.
//
if (settings.ElectromagnetSettings.IsEMEnable && i > 0)
{
EMTryObtainShortCircuit(settings.ElectromagnetSettings.EMShortCircuitDelayTime, settings.GeneralSettings.ShortCircuitVoltage, worker, e);
}
else
{
TryObtainShortCircuit(settings.GeneralSettings.ShortCircuitVoltage, settings.GeneralSettings.UseShortCircuitDelayTime,settings.GeneralSettings.ShortCircuitDelayTime, worker, e);
}
//
// Reach to open circuit for initial position
// If we intend to use the EM, for the first cycle only, use the stepper motor since
// we initially reached to contact with the stepper motor and the EM doesn't have enough force
// to withdraw the cantiliver from this intially squeezed position.
//
isCancelled = (settings.ElectromagnetSettings.IsEMEnable && i > 0) ?
EMTryObtainOpenCircuit(settings.ElectromagnetSettings.EMOpenCircuitDelayTime, settings.GeneralSettings.OpenCircuitVoltage, worker, e) :
TryObtainOpenCircuit(settings.GeneralSettings.OpenCircuitVoltage, worker, e);
if (isCancelled)
{
break;
}
//
// Turn back on the laser
//
if (settings.LaserSettings.IsLaserOn)
{
m_LaserController.TurnOn();
}
//
// Start making the junction.
//
if (settings.ElectromagnetSettings.IsEMEnable)
{
EMBeginCloseJunction(settings, worker, e);
}
else
{
BeginCloseJunction(settings, worker, e);
}
//
// Start the task and wait for the data
//
try
{
m_activeTriggeredTask.Start();
}
catch (DaqException ex)
{
throw new SBJException("Error occured when tryin to start DAQ task", ex);
}
AnalogMultiChannelReader reader = new AnalogMultiChannelReader(m_activeTriggeredTask.Stream);
try
{
dataAquired = reader.ReadMultiSample(-1);
if (dataAquired.GetLength(1) < settings.GeneralSettings.TotalSamples)
{
//
// If from some reason we weren't able to
// receive all data points, ignore and continue;
//
m_activeTriggeredTask.Stop();
continue;
}
if (settings.ChannelsSettings.ActiveChannels.Count != dataAquired.GetLength(0))
{
throw new SBJException("Number of data channels doesn't fit the recieved data.");
}
}
catch (DaqException)
{
//
// Probably timeout.
// Ignore this cycle and rerun.
//
m_activeTriggeredTask.Stop();
continue;
}
//
// At this point the reader has returned with all the data
// so we can stop the openning of the junction.
//
m_quitJunctionClosingOperation = true;
m_activeTriggeredTask.Stop();
//
// Assign the aquired data for each channel.
// First clear all data from previous interation.
//
ClearRawData(settings.ChannelsSettings.ActiveChannels);
AssignRawDataToChannels(settings.ChannelsSettings.ActiveChannels, dataAquired);
//
// physical channel will include both simple and complex channels.
//
physicalChannels = GetChannelsForDisplay(settings.ChannelsSettings.ActiveChannels);
//
// calculate the physical data for each channel
//
GetPhysicalData(physicalChannels);
//
// Increase file number by one
// Save data if needed
//
finalFileNumber++;
if (settings.GeneralSettings.IsFileSavingRequired)
{
finalFileNumber = SaveData(settings.GeneralSettings.Path, settings.ChannelsSettings.ActiveChannels, physicalChannels, finalFileNumber);
}
//
// Signal UI we have the data
//
if (DataAquired != null)
{
DataAquired(this, new DataAquiredEventArgs(physicalChannels, finalFileNumber));
}
}
return e.Cancel || isCancelled;
}
/// <summary>
/// Get the task for the data aquisition
/// </summary>
/// <param name="settings"></param>
/// <param name="worker"></param>
/// <param name="e"></param>
/// <returns></returns>
private Task GetMultipleChannelsTriggeredTask(SBJControllerSettings settings, string taskName, RunDirection runDirection, AnalogEdgeReferenceTriggerSlope triggerSlope, double triggerVoltage, BackgroundWorker worker, DoWorkEventArgs e)
{
AnalogEdgeReferenceTriggerSlope localTriggerSlope;
double localTriggerVoltage;
//
// Determine the trigger slope direction and voltage according to sign of the measured signal.
//
if (triggerSlope > 0)
{
localTriggerSlope = triggerSlope;
localTriggerVoltage = triggerVoltage;
}
else
{
//
// Reach to contact in order to retrieve the signal.
//
if (settings.ElectromagnetSettings.IsEMEnable)
{
EMTryObtainShortCircuit(settings.ElectromagnetSettings.EMShortCircuitDelayTime, settings.GeneralSettings.ShortCircuitVoltage, worker, e);
}
else
{
TryObtainShortCircuit(settings.GeneralSettings.ShortCircuitVoltage, settings.GeneralSettings.UseShortCircuitDelayTime, settings.GeneralSettings.ShortCircuitDelayTime, worker, e);
}
//
// Determines the direction of the current -
// Either positive (then voltage is negative) or negative (then voltage is positive number)
//
bool isPositiveVoltage = AnalogIn(0) > 0;
//
// Trigger's slope depends both on voltage sign and also on the direction of measurement - break or make junction.
//
if (isPositiveVoltage)
{
localTriggerSlope = (runDirection == RunDirection.Break) ? AnalogEdgeReferenceTriggerSlope.Falling : AnalogEdgeReferenceTriggerSlope.Rising;
}
else
{
localTriggerSlope = (runDirection == RunDirection.Break) ? AnalogEdgeReferenceTriggerSlope.Rising : AnalogEdgeReferenceTriggerSlope.Falling;
}
localTriggerVoltage = isPositiveVoltage ? settings.GeneralSettings.TriggerVoltage * (-1) : settings.GeneralSettings.TriggerVoltage;
//
// Before re-openning the junction set auto range off
// so we can stay at high range suitable to E5 gain.
//
if (settings.GeneralSettings.UseKeithley)
{
m_sourceMeter.SetAutoRange(false);
}
//
// Open the junction once again as if we didn't do anything.
//
if (settings.ElectromagnetSettings.IsEMEnable)
{
EMTryObtainOpenCircuit(settings.ElectromagnetSettings.EMShortCircuitDelayTime, settings.GeneralSettings.OpenCircuitVoltage, worker, e);
}
else
{
TryObtainOpenCircuit(settings.GeneralSettings.OpenCircuitVoltage, worker, e);
}
}
//
// Create the task with its propertites
//
TriggeredTaskProperties taskProperties = new TriggeredTaskProperties(taskName,
settings.ChannelsSettings.ActiveChannels,
settings.GeneralSettings.SampleRate,
settings.GeneralSettings.TotalSamples,
localTriggerVoltage,
settings.GeneralSettings.PretriggerSamples,
localTriggerSlope);
return m_daqController.CreateMultipleChannelsTriggeredTask(taskProperties);
}
/// <summary>
/// Configure laser parameters.
/// </summary>
/// <param name="settings">The settings by which the laser is to be configured</param>
/// <exception cref="SBJException"></exception>
private void ConfigureLaserIfNeeded(SBJControllerSettings settings)
{
//
// Return if no need to turn the laser on
//
if (!settings.LaserSettings.IsLaserOn)
{
return;
}
//ILaserController laserController = null;
if (settings.LaserSettings.LaserMode.Equals("IODrive"))
{
(m_LaserController as IODriveLaserController).SetAmplitude(settings.LaserSettings.LaserAmplitudeVolts);
}
else
{
if (settings.LaserSettings.LaserMode.Equals("DC"))
{
(m_LaserController as TaborLaserController).SetDCMode(settings.LaserSettings.LaserAmplitudeVolts);
}
else
{
if (settings.LaserSettings.LaserMode.Equals("Square"))
{
(m_LaserController as TaborLaserController).SetSquareMode(settings.LaserSettings.LaserFrequency, settings.LaserSettings.LaserAmplitudeVolts);
}
else
{
throw new SBJException("Invalid laser mode. Expected modes: DC or Sqaure");
}
}
}
if (settings.LaserSettings.IsFirstEOMOn)
{
m_taborFirstEOMController.SetSinusoidMode(settings.LaserSettings.FirstEOMFrequency);
m_taborFirstEOMController.TurnOn();
}
if (settings.LaserSettings.IsSecondEOMOn)
{
m_taborSecondEOMController.SetSinusoidMode(settings.LaserSettings.SecondEOMFrequency);
m_taborSecondEOMController.TurnOn();
}
}
/// <summary>
/// Open the junction asynchronously
/// </summary>
/// <param name="settings"></param>
private void BeginOpenJunction(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
OpenJunctionMethodDelegate openJunctionDelegate = new OpenJunctionMethodDelegate(OpenJunction);
AsyncCallback callback = new AsyncCallback(EndOpenJunction);
IAsyncResult asyncResult = openJunctionDelegate.BeginInvoke(settings, worker, e, callback, openJunctionDelegate);
}
/// <summary>
/// Move cantiliver to position until trigger is reached; Then stop.
/// </summary>
/// <param name="sBJControllerSettings"></param>
/// <param name="worker"></param>
/// <param name="e"></param>
public bool ReachPosition(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
bool isCancelled = false;
//
// Apply voltage with desired tool: Task or Keithley
//
ApplyVoltageIfNeeded(settings.GeneralSettings.UseKeithley,
settings.GeneralSettings.Bias,
settings.GeneralSettings.BiasError, settings.GeneralSettings.Range,
settings.GeneralSettings.AutoRange);
//
// Use Lambda Zup to apply constant voltage on external electromagnet if needed
//
UseLambdaZupIfNeeded(settings.LambdaZupSettings.IsLambdaZupEnable,
settings.LambdaZupSettings.OutputVoltage);
//
// Configure the laser if needed for this run
//
ConfigureLaserIfNeeded(settings);
//
// Save this run settings if desired
//
SaveSettingsIfNeeded(settings, settings.GeneralSettings.IsFileSavingRequired, settings.GeneralSettings.Path);
//
//apply initial voltage on the EM
//
ApplyVoltageOnElectroMagnetIfNeeded(settings.ElectromagnetSettings.IsEMEnable);
switch (settings.GeneralSettings.RunDirection)
{
case RunDirection.Both:
//TODO: Add implementation for both direction measurement
break;
case RunDirection.Break:
isCancelled = ReachToPositionByMovingUp(settings, worker, e);
break;
case RunDirection.Make:
isCancelled = ReachToPositionByMovingDown(settings, worker, e);
break;
}
//
// Finish the measurement properly
//
if (settings.LaserSettings.IsLaserOn)
{
m_LaserController.TurnOff();
}
if (settings.ElectromagnetSettings.IsEMEnable)
{
m_electroMagnet.Shutdown();
}
if (settings.LaserSettings.IsFirstEOMOn)
{
m_taborFirstEOMController.TurnOff();
}
if (settings.LaserSettings.IsSecondEOMOn)
{
m_taborSecondEOMController.TurnOff();
}
if (settings.LambdaZupSettings.IsLambdaZupEnable)
{
m_lambdaZup.TurnOffOutput();
}
m_activeTriggeredTask.Dispose();
m_stepperMotor.Shutdown();
return isCancelled;
}
/// <summary>
/// Close the junction asynchronously
/// </summary>
/// <param name="settings"></param>
private void BeginCloseJunction(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
CloseJunctionMethodDelegate closeJunctionDelegate = new CloseJunctionMethodDelegate(CloseJunction);
AsyncCallback callback = new AsyncCallback(EndCloseJunction);
IAsyncResult asyncResult = closeJunctionDelegate.BeginInvoke(settings, worker, e, callback, closeJunctionDelegate);
}
/// <summary>
/// Manually aquire data
/// This method continuously poll the buffer for data until it is stopped by the user.
/// </summary>
/// <param name="settings">The settings for running the aquisition</param>
/// <returns>True whether the operation was cacled by the user. False otherwise.</returns>
public bool AquireDataContinuously(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
//
// Apply voltage with desired tool: Task or Keithley
//
ApplyVoltageIfNeeded(settings.GeneralSettings.UseKeithley,
settings.GeneralSettings.Bias,
settings.GeneralSettings.BiasError,
settings.GeneralSettings.Range,
settings.GeneralSettings.AutoRange);
bool isCancelled = false;
int finalFileNumber = settings.GeneralSettings.CurrentFileNumber;
//
// The array is intialized with size for 1 minute sampling.
//
double[,] dataAquired = new double[1000, 1000];
List<IDataChannel> physicalChannels = new List<IDataChannel>();
//
// Configure the laser if needed for this run
//
ConfigureLaserIfNeeded(settings);
//
// Save this run settings if desired
//
SaveSettingsIfNeeded(settings, settings.GeneralSettings.IsFileSavingRequired, settings.GeneralSettings.Path);
//
//apply initial voltage on the EM
//
ApplyVoltageOnElectroMagnetIfNeeded(settings.ElectromagnetSettings.IsEMEnable);
//
// Create the task
//
m_activeTriggeredTask = GetContinuousAITask(settings.GeneralSettings.SampleRate, settings.ChannelsSettings.ActiveChannels, null);
//
// If EM is enabled, and we are asked to skip the first cycle (that is done by the stepper motor),
// then return.
//
if (settings.ElectromagnetSettings.IsEMEnable && settings.ElectromagnetSettings.IsEMSkipFirstCycleEnable)
{
m_stepperMotor.Shutdown();
return false;
}
if (settings.LaserSettings.IsLaserOn)
{
m_LaserController.TurnOn();
}
//
// Start the task and wait for the data
//
try
{
m_activeTriggeredTask.Start();
}
catch (DaqException ex)
{
throw new SBJException("Error occured when tryin to start DAQ task", ex);
}
AnalogMultiChannelReader reader = new AnalogMultiChannelReader(m_activeTriggeredTask.Stream);
List<List<double>> fullData = new List<List<double>>(settings.ChannelsSettings.ActiveChannels.Count);
for (int i = 0; i < fullData.Capacity; i++)
{
fullData.Add(new List<double>());
}
try
{
//
// Before getting all the data clear the lists.
//
ClearRawData(settings.ChannelsSettings.ActiveChannels);
//
// As long as the user didn't ask to stop the acquisition
// (which is signaled by the stop of the stepper motion)
// we coninue sampling.
//
while (!worker.CancellationPending)
{
//
// Read all available data points in the buffer that
// were not read so far.
//
dataAquired = reader.ReadMultiSample(-1);
fullData = AccumulateData(fullData, dataAquired);
dataAquired = null;
}
}
catch (DaqException)
{
//
// In case of an error just return
//
m_activeTriggeredTask.Stop();
m_activeTriggeredTask.Dispose();
if (m_LaserController != null)
{
m_LaserController.TurnOff();
}
if (m_taborFirstEOMController != null)
{
m_taborFirstEOMController.TurnOff();
}
if (m_taborSecondEOMController != null)
{
m_taborSecondEOMController.TurnOff();
}
return false;
}
//
// At this point the user had requested to stop the data aquisition.
// By signaling "stop". We can stop the task.
//
m_activeTriggeredTask.Stop();
//
// Assign the aquired data for each channel after an average process
//
AssignRawDataToChannels(settings.ChannelsSettings.ActiveChannels, ConvertDataToMatrix(fullData));
//
// physical channel will include both simple and complex channels.
//
physicalChannels = GetChannelsForDisplay(settings.ChannelsSettings.ActiveChannels);
//
// calculate the physical data for each channel
//
GetPhysicalData(physicalChannels);
//
// Increase file number by one
// Save data if needed
//
finalFileNumber++;
if (settings.GeneralSettings.IsFileSavingRequired)
{
finalFileNumber = SaveData(settings.GeneralSettings.Path, settings.ChannelsSettings.ActiveChannels, physicalChannels, finalFileNumber);
}
//
// Signal UI we have the data
//
if (DataAquired != null)
{
DataAquired(this, new DataAquiredEventArgs(physicalChannels, finalFileNumber));
}
//
// Finish the measurement properly
//
if (settings.LaserSettings.IsLaserOn)
{
m_LaserController.TurnOff();
}
if (settings.ElectromagnetSettings.IsEMEnable)
{
m_electroMagnet.Shutdown();
}
if (settings.LaserSettings.IsFirstEOMOn)
{
m_taborFirstEOMController.TurnOff();
}
if (settings.LaserSettings.IsSecondEOMOn)
{
m_taborSecondEOMController.TurnOff();
}
m_activeTriggeredTask.Dispose();
m_stepperMotor.Shutdown();
return (isCancelled || e.Cancel);
}
/// <summary>
/// Manually aquire data
/// This method continuously poll the buffer for data until it is stopped by the user.
/// </summary>
/// <param name="settings">The settings for running the aquisition</param>
/// <returns>True whether the operation was cacled by the user. False otherwise.</returns>
public bool AquireDataManually(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
//
// Apply voltage with desired tool: Task or Keithley
//
ApplyVoltageIfNeeded(settings.GeneralSettings.UseKeithley,
settings.GeneralSettings.Bias,
settings.GeneralSettings.BiasError,
settings.GeneralSettings.Range,
settings.GeneralSettings.AutoRange);
bool isCancelled = false;
int finalFileNumber = settings.GeneralSettings.CurrentFileNumber;
//
// The array is intialized with size for 1 minute sampling.
//
double[,] dataAquired = new double[1000, 1000];
List<IDataChannel> physicalChannels = new List<IDataChannel>();
//
// Configure the laser if needed for this run
//
ConfigureLaserIfNeeded(settings);
//
// Save this run settings if desired
//
SaveSettingsIfNeeded(settings, settings.GeneralSettings.IsFileSavingRequired, settings.GeneralSettings.Path);
//
//apply initial voltage on the EM
//
ApplyVoltageOnElectroMagnetIfNeeded(settings.ElectromagnetSettings.IsEMEnable);
//
// Create the task
//
m_activeTriggeredTask = GetContinuousAITask(settings.GeneralSettings.SampleRate, settings.ChannelsSettings.ActiveChannels, null);
//
// If EM is enabled, and we are asked to skip the first cycle (that is done by the stepper motor),
// then return.
//
if (settings.ElectromagnetSettings.IsEMEnable && settings.ElectromagnetSettings.IsEMSkipFirstCycleEnable)
{
m_stepperMotor.Shutdown();
return false;
}
//
// Turn off the laser before we reach contact
//
if (settings.LaserSettings.IsLaserOn)
{
m_LaserController.TurnOff();
Thread.Sleep(5000);
}
//
// Change the gain power to 5 before reaching contact
// to ensure full contact current
//
if (settings.GeneralSettings.UseDefaultGain)
{
m_amplifier.ChangeGain(5);
}
//
// Reach to contact before we start openning the junction
// If EM is enabled and we're after the first cycle, use the EM.
// If user asked to stop than exit
//
isCancelled = (settings.ElectromagnetSettings.IsEMEnable) ?
EMTryObtainShortCircuit(settings.ElectromagnetSettings.EMShortCircuitDelayTime,
settings.GeneralSettings.ShortCircuitVoltage, worker, e) :
TryObtainShortCircuit(settings.GeneralSettings.ShortCircuitVoltage, settings.GeneralSettings.UseShortCircuitDelayTime,settings.GeneralSettings.ShortCircuitDelayTime, worker, e);
if (isCancelled)
{
return false;
}
//
// Configure the gain to the desired one before strating the measurement.
// And also this is the time to switch the laser on.
//
if (settings.GeneralSettings.UseDefaultGain)
{
int gainPower;
Int32.TryParse(settings.GeneralSettings.Gain, out gainPower);
m_amplifier.ChangeGain(gainPower);
}
if (settings.LaserSettings.IsLaserOn)
{
m_LaserController.TurnOn();
}
//
// Start openning the junction.
// If EM is enabled then use it.
//
if (settings.ElectromagnetSettings.IsEMEnable)
{
m_stepperMotor.Shutdown();
EMBeginOpenJunction(settings, worker, e);
}
else
{
BeginOpenJunction(settings, worker, e);
}
//
// Start the task and wait for the data
//
try
{
m_activeTriggeredTask.Start();
}
catch (DaqException ex)
{
throw new SBJException("Error occured when tryin to start DAQ task", ex);
}
AnalogMultiChannelReader reader = new AnalogMultiChannelReader(m_activeTriggeredTask.Stream);
List<List<double>> averagedData = new List<List<double>>(settings.ChannelsSettings.ActiveChannels.Count);
for (int i = 0; i < averagedData.Capacity; i++)
{
averagedData.Add(new List<double>());
}
try
{
//
// Before getting all the data clear the lists.
//
ClearRawData(settings.ChannelsSettings.ActiveChannels);
//
// As long as the user didn't ask to stop the acquisition
// (which is signaled by the stop of the stepper motion)
// we coninue sampling.
//
while (!m_quitJunctionOpenningOperation)
{
//
// Read all available data points in the buffer that
// were not read so far.
//
dataAquired = reader.ReadMultiSample(-1);
//
// Get average for the acquired the data and assign to variable
//
List<double> averageDataValues = GetAverageDataValue(dataAquired);
for (int i = 0; i < averageDataValues.Count; i++)
{
averagedData[i].Add(averageDataValues[i]);
}
dataAquired = null;
//
// Cancel the operatin if user asked for
// We do it at the end of the loop to make sure we
// saved all the data we have available.
//
if (worker.CancellationPending == true)
{
e.Cancel = true;
break;
}
}
}
catch (DaqException)
{
//
// In case of an error just return
//
m_activeTriggeredTask.Stop();
m_activeTriggeredTask.Dispose();
if (m_LaserController != null)
{
m_LaserController.TurnOff();
}
if (m_taborFirstEOMController != null)
{
m_taborFirstEOMController.TurnOff();
}
if (m_taborSecondEOMController != null)
{
m_taborSecondEOMController.TurnOff();
}
return false;
}
//
// At this point the user had requested to stop the data aquisition.
// By signaling "stop". We can stop the task.
//
m_activeTriggeredTask.Stop();
//
// Assign the aquired data for each channel after an average process
//
AssignRawDataToChannels(settings.ChannelsSettings.ActiveChannels, ConvertDataToMatrix(GetAveragedData(averagedData, 5000)));
//
// physical channel will include both simple and complex channels.
//
physicalChannels = GetChannelsForDisplay(settings.ChannelsSettings.ActiveChannels);
//
// calculate the physical data for each channel
//
GetPhysicalData(physicalChannels);
//
// Increase file number by one
// Save data if needed
//
finalFileNumber++;
if (settings.GeneralSettings.IsFileSavingRequired)
{
finalFileNumber = SaveData(settings.GeneralSettings.Path, settings.ChannelsSettings.ActiveChannels, physicalChannels, finalFileNumber);
}
//
// Signal UI we have the data
//
if (DataAquired != null)
{
DataAquired(this, new DataAquiredEventArgs(physicalChannels, finalFileNumber));
}
//
// Finish the measurement properly
//
if (settings.LaserSettings.IsLaserOn)
{
m_LaserController.TurnOff();
}
if (settings.ElectromagnetSettings.IsEMEnable)
{
m_electroMagnet.Shutdown();
}
if (settings.LaserSettings.IsFirstEOMOn)
{
m_taborFirstEOMController.TurnOff();
}
if (settings.LaserSettings.IsSecondEOMOn)
{
m_taborSecondEOMController.TurnOff();
}
m_activeTriggeredTask.Dispose();
m_stepperMotor.Shutdown();
return (isCancelled || e.Cancel);
}
/// <summary>
/// Data aquisition
/// </summary>
/// <param name="settings">The settings for running the aquisition</param>
/// <returns>True whether the operation was cacled by the user. False otherwise.</returns>
public bool AquireData(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
bool isCancelled = false;
//
// Apply voltage with desired tool: Task or Keithley
//
ApplyVoltageIfNeeded(settings.GeneralSettings.UseKeithley,
settings.GeneralSettings.Bias,
settings.GeneralSettings.BiasError,
settings.GeneralSettings.Range,
settings.GeneralSettings.AutoRange);
//
// Use Lambda Zup to apply constant voltage on external electromagnet if needed
//
UseLambdaZupIfNeeded(settings.LambdaZupSettings.IsLambdaZupEnable,
settings.LambdaZupSettings.OutputVoltage);
//
// Configure the laser if needed for this run
//
ConfigureLaserIfNeeded(settings);
//
// Save this run settings if desired
//
SaveSettingsIfNeeded(settings, settings.GeneralSettings.IsFileSavingRequired, settings.GeneralSettings.Path);
//
//apply initial voltage on the EM
//
ApplyVoltageOnElectroMagnetIfNeeded(settings.ElectromagnetSettings.IsEMEnable);
//
// Change to E5 gain to determine current sign (+/-) in order to configure the task correctly
// This is also used to disable auto range once reached to contact.
//
m_amplifier.ChangeGain(5);
//
// Create the task
//
switch (settings.GeneralSettings.RunDirection)
{
case RunDirection.Both:
//TODO: Add implementation for both direction measurement
break;
case RunDirection.Break:
m_firstTriggeredTask = GetMultipleChannelsTriggeredTask(settings, "firstTriggeredTask" ,RunDirection.Break, 0, 0, worker, e);
m_firstTriggeredTask.Control(TaskAction.Verify);
double level = m_firstTriggeredTask.Triggers.ReferenceTrigger.AnalogEdge.Level * -1;
AnalogEdgeReferenceTriggerSlope slope = m_firstTriggeredTask.Triggers.ReferenceTrigger.AnalogEdge.Slope == AnalogEdgeReferenceTriggerSlope.Falling ? AnalogEdgeReferenceTriggerSlope.Rising : AnalogEdgeReferenceTriggerSlope.Falling;
m_secondaryTriggeredTask = GetMultipleChannelsTriggeredTask(settings, "secondaryTriggeredTask", RunDirection.Break, slope, level , worker, e);
isCancelled = PerformBreakJunctionCycles(settings, worker, e);
break;
case RunDirection.Make:
m_activeTriggeredTask = GetMultipleChannelsTriggeredTask(settings, null,RunDirection.Make, m_triggerSlope, m_triggerVoltage, worker, e);
isCancelled = PerformMakeJunctionCycles(settings, worker, e);
break;
}
//
// Finish the measurement properly
//
if (settings.LaserSettings.IsLaserOn)
{
m_LaserController.TurnOff();
}
if (settings.ElectromagnetSettings.IsEMEnable)
{
m_electroMagnet.Shutdown();
}
if (settings.LaserSettings.IsFirstEOMOn)
{
m_taborFirstEOMController.TurnOff();
}
if (settings.LaserSettings.IsSecondEOMOn)
{
m_taborSecondEOMController.TurnOff();
}
if (settings.LambdaZupSettings.IsLambdaZupEnable)
{
m_lambdaZup.TurnOffOutput();
}
m_activeTriggeredTask.Dispose();
m_firstTriggeredTask.Dispose();
m_secondaryTriggeredTask.Dispose();
m_stepperMotor.Shutdown();
return isCancelled;
}
/// <summary>
/// Open the junction
/// </summary>
/// <param name="settings">The settings to be used to open the junction</param>
private void OpenJunction(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
//
// Set the direction of the movement and stepping mode
// And configure the first setpper delay (shorter) - faster movement
//
m_stepperMotor.Direction = StepperDirection.UP;
m_stepperMotor.SteppingMode = StepperSteppingMode.HALF;
m_stepperMotor.Delay = settings.GeneralSettings.StepperWaitTime1;
//
// Read the initial voltgae before we've done anything
//
double initialVoltage = AnalogIn(0);
bool isDelayedChanged = false;
m_quitJunctionOpenningOperation = false;
//
// Until we've not been signaled from outer thread to stop we'll continue moving up.
//
while (!m_quitJunctionOpenningOperation)
{
//
// Cancel the operatin if user asked for
//
if (worker.CancellationPending == true)
{
e.Cancel = true;
break;
}
m_stepperMotor.MoveSingleStep();
double currentVoltage = AnalogIn(0);
//
// If voltgae had been changed in 0.0001% then switch to slow mode
// Note that voltage can be negative so we must take the absoulute value
//
if (!isDelayedChanged && (Math.Abs(currentVoltage) < Math.Abs(initialVoltage) * 0.95))
{
m_stepperMotor.Delay = settings.GeneralSettings.StepperWaitTime2;
isDelayedChanged = true;
}
Thread.Sleep(m_stepperMotor.Delay);
}
}
/// <summary>
/// Reach to position specified by conductance value and then stop and aqcuire data until asked to stop.
/// </summary>
/// <param name="settings"></param>
/// <param name="worker"></param>
/// <param name="e"></param>
/// <returns></returns>
private bool ReachToPositionByMovingUp(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
double[,] dataAcquired = new double[1000, 1000];
int finalFileNumber = settings.GeneralSettings.CurrentFileNumber;
List<IDataChannel> physicalChannels = new List<IDataChannel>();
for (int i = 0; i < settings.GeneralSettings.TotalNumberOfCycles; i++)
{
//
// Cancel the operatin if user asked for
//
if (worker.CancellationPending == true)
{
e.Cancel = true;
break;
}
//
// This flag is used to signal us when the user asked to stop the real time data acquisition
//
m_quitRealTimeOperation = false;
m_activeTriggeredTask = GetMultipleChannelsTriggeredTask(settings, null, RunDirection.Break, m_triggerSlope, m_triggerVoltage, worker, e);
m_activeTriggeredTask.EveryNSamplesReadEventInterval = settings.GeneralSettings.TotalSamples;
m_activeTriggeredTask.Done += new TaskDoneEventHandler(OnTaskDoneOpenning);
m_activeTriggeredTask.Control(TaskAction.Verify);
m_triggerSlope = m_activeTriggeredTask.Triggers.ReferenceTrigger.AnalogEdge.Slope;
m_triggerVoltage = m_activeTriggeredTask.Triggers.ReferenceTrigger.AnalogEdge.Level;
//
// physical channel will include both simple and complex channels.
//
physicalChannels = GetChannelsForDisplay(settings.ChannelsSettings.ActiveChannels);
//
// Assign the aquired data for each channel.
// First clear all data from previous interation.
//
ClearRawData(settings.ChannelsSettings.ActiveChannels);
//
// Create the tasks: One for triggering us to stop and the other for start monitoring the data
//
m_realTimeTask = GetContinuousAITask(settings.GeneralSettings.SampleRate, settings.ChannelsSettings.ActiveChannels, null);
AnalogMultiChannelReader realTimeReader = new AnalogMultiChannelReader(m_realTimeTask.Stream);
//
// Start closing the junction.
// If EM is enabled use the EM.
//
if (settings.ElectromagnetSettings.IsEMEnable)
{
EMTryObtainShortCircuit(settings.ElectromagnetSettings.EMShortCircuitDelayTime, settings.GeneralSettings.ShortCircuitVoltage, worker, e);
}
else
{
TryObtainShortCircuit(settings.GeneralSettings.ShortCircuitVoltage, settings.GeneralSettings.UseShortCircuitDelayTime,settings.GeneralSettings.ShortCircuitDelayTime, worker, e);
}
//
// Start openning the junction. ASync operation.
// If EM is enabled use the EM.
//
if (settings.ElectromagnetSettings.IsEMEnable)
{
EMBeginOpenJunction(settings, worker, e);
}
else
{
BeginOpenJunction(settings, worker, e);
}
//
// Cancel the operatin if user asked for
//
if (worker.CancellationPending == true)
{
e.Cancel = true;
break;
}
//
// Start the triggered task.
//
m_activeTriggeredTask.Start();
//
// If the user asked to stop the operation on the external thread then
// WaitUntilDone will throw an expection. We can ignore that and return.
//
try
{
m_activeTriggeredTask.WaitUntilDone();
}
catch (DaqException)
{
//
// We got here if the user asked to stop the operation
//
break;
}
//
// We reach this point only after we reached the desired conductance value.
// As long as the user didn't ask to stop the operation continue recording the data.
//
while (!m_quitRealTimeOperation)
{
//
// Read operation implicity start the task without the need to call Start() method.
//
try
{
dataAcquired = realTimeReader.ReadMultiSample(-1);
}
catch (DaqException)
{
continue;
}
if (dataAcquired.Length == 0)
{
continue;
}
//
// Assign the aquired data for each channel.
//
AssignRawDataToChannels(settings.ChannelsSettings.ActiveChannels, dataAcquired);
//
// calculate the physical data for each channel
//
GetPhysicalData(physicalChannels);
//
// Signal UI we have the data
//
if (DataAquired != null)
{
DataAquired(this, new DataAquiredEventArgs(physicalChannels, finalFileNumber));
}
}
if (DoneReadingData != null)
{
DoneReadingData(this, null);
}
m_realTimeTask.Stop();
m_realTimeTask.Dispose();
//
// Increase file number by one
// Save data if needed
//
finalFileNumber++;
if (settings.GeneralSettings.IsFileSavingRequired)
{
finalFileNumber = SaveData(settings.GeneralSettings.Path, settings.ChannelsSettings.ActiveChannels, physicalChannels, finalFileNumber);
}
}
m_activeTriggeredTask.Dispose();
m_realTimeTask.Dispose();
m_triggerSlope = 0;
m_triggerVoltage = 0;
return e.Cancel;
}
/// <summary>
/// Open the junction
/// </summary>
/// <param name="settings">The settings to be used to open the junction</param>
private void CloseJunction(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
//
// Set the direction of the movement and stepping mode
// And configure the first setpper delay.
//
m_stepperMotor.Direction = StepperDirection.DOWN;
m_stepperMotor.SteppingMode = StepperSteppingMode.HALF;
m_stepperMotor.Delay = settings.GeneralSettings.StepperWaitTime1;
//
// Read the initial voltgae before we've done anything
// Keep polling the value until it is abit different than 0.
// This is a problem of instability with Flaxer's card.
//
double initialVoltage = AnalogIn(0);
while (initialVoltage == 0.0)
{
initialVoltage = AnalogIn(0);
}
bool isDelayedChanged = false;
m_quitJunctionClosingOperation = false;
//
// Until we've not been signaled from outer thread to stop we'll continue moving up.
//
while (!m_quitJunctionClosingOperation)
{
//
// Cancel the operatin if user asked for
//
if (worker.CancellationPending == true)
{
e.Cancel = true;
break;
}
m_stepperMotor.MoveSingleStep();
double currentVoltage = AnalogIn(0);
//
// If voltgae had been changed in 0.0001% then switch to slow mode
// Note that voltage can be negative so we must take the absoulute value
// The two numbers must be of the same sign in order for us to compare them
//
if (!isDelayedChanged && (currentVoltage * initialVoltage > 0 ) && (Math.Abs(currentVoltage) > Math.Abs(initialVoltage) * 50))
{
m_stepperMotor.Delay = settings.GeneralSettings.StepperWaitTime2;
isDelayedChanged = true;
}
Thread.Sleep(m_stepperMotor.Delay);
}
}
/// <summary>
/// Try close junction by the EM, by calling EMCloseJunction.
/// if max voltage exceeded without the junction being closed, do a few steps by the stepper motor, then retry EM (recursion).
/// </summary>
/// <param name="settings"></param>
/// <returns></returns>
private bool EMTryCloseJunction(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
double initialValue = Math.Abs(AnalogIn(0));
while (initialValue == 0.0)
{
initialValue = Math.Abs(AnalogIn(0));
}
//
// if the EM reached max voltage without closing the junction,
// return to lower voltage on EM, do some steps by the stepper motor and retry opening by EM.
//
if (!EMCloseJunction(settings, worker, e))
{
double currentValue = Math.Abs(AnalogIn(0));
m_electroMagnet.ReachEMVoltageGradually(m_electroMagnet.MinDelay, c_initialEMVoltage);
if (currentValue > initialValue*2)
{
MoveStepsByStepperMotor(StepperDirection.DOWN, 50);
}
else
{
MoveStepsByStepperMotor(StepperDirection.DOWN, 200);
}
return EMTryCloseJunction(settings, worker, e);
}
return true;
}
/// <summary>
/// Aquire data from a close position while openning the junction
/// </summary>
/// <param name="settings"></param>
/// <param name="worker"></param>
/// <param name="e"></param>
/// <returns></returns>
private bool PerformBreakJunctionCycles(SBJControllerSettings settings, BackgroundWorker worker, DoWorkEventArgs e)
{
double[,] dataAquired;
bool isCancelled = false;
int finalFileNumber = settings.GeneralSettings.CurrentFileNumber;
List<IDataChannel> physicalChannels = new List<IDataChannel>();
//
// Since we set the gain to E5 when configuring the task
// it is time to set it back to the desired one.
//
int gainPower;
Int32.TryParse(settings.GeneralSettings.Gain, out gainPower);
m_amplifier.ChangeGain(gainPower);
for (int i = 0; i < settings.GeneralSettings.TotalNumberOfCycles; i++)
{
//
// Cancel the operation if user asked for
//
if (worker.CancellationPending == true)
{
e.Cancel = true;
break;
}
//
// if EM is enabled, and we are asked to skip the first cycle (that is done by the stepper motor),
// move on to the next cycle.
//
if (settings.ElectromagnetSettings.IsEMEnable && settings.ElectromagnetSettings.IsEMSkipFirstCycleEnable && i == 0)
{
m_stepperMotor.Shutdown();
continue;
}
//
// Turn off the laser before we reach contact
//
//if (settings.LaserSettings.IsLaserOn)
//{
// m_LaserController.TurnOff();
// Thread.Sleep(5000);
//}
//
// Change the gain power to 5 before reaching contact
// to ensure full contact current
//
if (settings.GeneralSettings.UseDefaultGain || settings.GeneralSettings.ChangeGain)
{
m_amplifier.ChangeGain(5);
}
//
// Reach to contact before we start openning the junction
// If EM is enabled and we're after the first cycle, use the EM.
// If user asked to stop then exit
//
isCancelled = (settings.ElectromagnetSettings.IsEMEnable && i > 0) ?
EMTryObtainShortCircuit(settings.ElectromagnetSettings.EMShortCircuitDelayTime, settings.GeneralSettings.ShortCircuitVoltage, worker, e) :
TryObtainShortCircuit(settings.GeneralSettings.ShortCircuitVoltage, settings.GeneralSettings.UseShortCircuitDelayTime, settings.GeneralSettings.ShortCircuitDelayTime, worker, e);
if (isCancelled)
{
break;
}
//
// Configure the gain to the desired one if we changed it to E5
// before strating the measurement.
// And also this is the time to switch the laser on.
//
if (settings.GeneralSettings.UseDefaultGain)
{
m_amplifier.ChangeGain(gainPower);
}
if (settings.LaserSettings.IsLaserOn)
{
m_LaserController.TurnOn();
}
//
// Set the bias if AC mode
//
m_activeTriggeredTask = m_firstTriggeredTask;
if (settings.GeneralSettings.ACBias)
{
double bias = Math.Pow(-1, finalFileNumber) * settings.GeneralSettings.Bias;
m_sourceMeter.SetBias(bias, settings.GeneralSettings.Range,settings.GeneralSettings.AutoRange);
m_activeTriggeredTask = (bias == settings.GeneralSettings.Bias) ? m_firstTriggeredTask : m_secondaryTriggeredTask;
}
//
// Start openning the junction.
// If EM is enabled and we're after the first cycle, use the EM.
//
if (settings.ElectromagnetSettings.IsEMEnable)
{
if (i == 0)
{
//
// open the junction by stepper motor. this function does it indipendently;
// it doesn't wait for the trigger task to finish. and we stay on the current thread.
//
ObtainOpenJunctionByStepperMotor(settings.GeneralSettings.TriggerVoltage, worker, e);
//
// from now on we will use the EM, so we don't want the stepper motor to stay on.
//
m_stepperMotor.Shutdown();
continue;
}
else
{
EMBeginOpenJunction(settings, worker, e);
}
}
else
{
BeginOpenJunction(settings, worker, e);
}
//
// Start the task and wait for the data
//
try
{
m_activeTriggeredTask.Start();
}
catch (DaqException ex)
{
throw new SBJException("Error occured when tryin to start DAQ task", ex);
}
if (settings.GeneralSettings.ChangeGain && (settings.GeneralSettings.StepperWaitTime2 > settings.GeneralSettings.StepperWaitTime1))
{
while (!m_quitJunctionOpenningOperation && (m_stepperMotor.Delay != settings.GeneralSettings.StepperWaitTime2)) { }
if (!m_quitJunctionOpenningOperation)
{
m_amplifier.ChangeGain(gainPower);
}
}
AnalogMultiChannelReader reader = new AnalogMultiChannelReader(m_activeTriggeredTask.Stream);
try
{
dataAquired = reader.ReadMultiSample(-1);
if (dataAquired.GetLength(1) < settings.GeneralSettings.TotalSamples)
{
//
// If from some reason we weren't able to
// receive all data points, ignore and continue;
//
m_activeTriggeredTask.Stop();
continue;
}
if (settings.ChannelsSettings.ActiveChannels.Count != dataAquired.GetLength(0))
{
throw new SBJException("Number of data channels doesn't fit the recieved data.");
}
}
catch (DaqException ex )
{
if (ex.Error == -88709 || ex.Error == -88710)
{
//
// User asked to stop so the task was aborted from the UI thread
//
break;
}
else
{
//
// Probably timeout.
// Ignore this cycle and rerun.
//
m_activeTriggeredTask.Stop();
continue;
}
}
//
// At this point the reader has returned with all the data
// so we can stop the openning of the junction.
//
m_quitJunctionOpenningOperation = true;
m_activeTriggeredTask.Stop();
//
// Assign the aquired data for each channel.
// First clear all data from previous interation.
//
ClearRawData(settings.ChannelsSettings.ActiveChannels);
AssignRawDataToChannels(settings.ChannelsSettings.ActiveChannels, dataAquired);
//
// physical channel will include both simple and complex channels.
//
physicalChannels = GetChannelsForDisplay(settings.ChannelsSettings.ActiveChannels);
//
// calculate the physical data for each channel
//
GetPhysicalData(physicalChannels);
//
// Increase file number by one
// Save data if needed
//
finalFileNumber++;
if (settings.GeneralSettings.IsFileSavingRequired)
{
finalFileNumber = SaveData(settings.GeneralSettings.Path, settings.ChannelsSettings.ActiveChannels, physicalChannels, finalFileNumber);
}
//
// Signal UI we have the data
//
if (DataAquired != null)
{
DataAquired(this, new DataAquiredEventArgs(physicalChannels, finalFileNumber));
}
}
return e.Cancel || isCancelled;
}
