public static void ConfigureSupply(NIDCPower supplyHandle, SupplyConfiguration supplyConfig, string channelNames = "")
{
supplyHandle.Source.Mode = DCPowerSourceMode.SinglePoint;
supplyHandle.Outputs[channelNames].Source.Output.Function = supplyConfig.OutputFunction;
supplyHandle.Outputs[channelNames].Source.TransientResponse = supplyConfig.TransientResponseMode;
switch (supplyConfig.OutputFunction)
{
case DCPowerSourceOutputFunction.DCVoltage:
supplyHandle.Outputs[channelNames].Source.Voltage.CurrentLimitAutorange = DCPowerSourceCurrentLimitAutorange.On;
supplyHandle.Outputs[channelNames].Source.Voltage.VoltageLevelAutorange = DCPowerSourceVoltageLevelAutorange.On;
supplyHandle.Outputs[channelNames].Source.Voltage.VoltageLevel = supplyConfig.VoltageLevel_V;
supplyHandle.Outputs[channelNames].Source.Voltage.CurrentLimit = supplyConfig.CurrentLimit_A;
break;
case DCPowerSourceOutputFunction.DCCurrent:
supplyHandle.Outputs[channelNames].Source.Current.CurrentLevelAutorange = DCPowerSourceCurrentLevelAutorange.On;
supplyHandle.Outputs[channelNames].Source.Current.VoltageLimitAutorange = DCPowerSourceVoltageLimitAutorange.On;
supplyHandle.Outputs[channelNames].Source.Current.CurrentLevel = supplyConfig.CurrentLevel_A;
supplyHandle.Outputs[channelNames].Source.Current.VoltageLimit = supplyConfig.VoltageLimit_V;
break;
default:
throw new NotImplementedException("Pulse voltage/current is not implemented.");
}
if (supplyConfig.TransientResponseMode == DCPowerSourceTransientResponse.Custom)
{
switch (supplyConfig.OutputFunction)
{
case DCPowerSourceOutputFunction.DCVoltage:
supplyHandle.Outputs[channelNames].Source.CustomTransientResponse.Voltage.CompensationFrequency =
supplyConfig.CustomTransientConfig.CompensationFrequency;
supplyHandle.Outputs[channelNames].Source.CustomTransientResponse.Voltage.GainBandwidth =
supplyConfig.CustomTransientConfig.GainBandwidth;
supplyHandle.Outputs[channelNames].Source.CustomTransientResponse.Voltage.PoleZeroRatio =
supplyConfig.CustomTransientConfig.PoleZeroRatio;
break;
case DCPowerSourceOutputFunction.DCCurrent:
supplyHandle.Outputs[channelNames].Source.CustomTransientResponse.Current.CompensationFrequency =
supplyConfig.CustomTransientConfig.CompensationFrequency;
supplyHandle.Outputs[channelNames].Source.CustomTransientResponse.Current.GainBandwidth =
supplyConfig.CustomTransientConfig.GainBandwidth;
supplyHandle.Outputs[channelNames].Source.CustomTransientResponse.Current.PoleZeroRatio =
supplyConfig.CustomTransientConfig.PoleZeroRatio;
break;
}
}
}
static void Main()
{
string channelNames = "0";
NIDCPower dcPower = new NIDCPower("4139", channelNames, false);
// Configure instrument settings
SupplyConfiguration supplyConfig = SupplyConfiguration.GetDefault();
supplyConfig.OutputFunction = DCPowerSourceOutputFunction.DCVoltage;
supplyConfig.VoltageLevel_V = 3;
supplyConfig.CurrentLevel_A = 1;
ConfigureSupply(dcPower, supplyConfig, channelNames);
// Configure measurement related parameters
MeasurementConfiguration measConfig = new MeasurementConfiguration
{
MeasureWhenMode = DCPowerMeasurementWhen.AutomaticallyAfterSourceComplete,
SenseMode = DCPowerMeasurementSense.Remote,
// A MeasurementMode of "Record" acquires multiple smaples over the requested measurement
// time at the supply's maximum sampling rate. "Single Point" will take a single measurement
// over that duration and average the power and current results.
MeasurementMode = MeasurementModeConfiguration.Record,
MeasurementTime_s = 2e-3,
MeasurementTriggerTerminal = "PXI_Trig0"
};
ConfigureMeasurement(dcPower, measConfig, channelNames);
TurnSupplyOnOrOff(dcPower, SupplyPowerMode.PowerOn, channelNames);
MeasurementResults results = MeasureSupplyIV(dcPower, channelNames);
// Calculate the average of the acquired results
results = Utilities.CalculateAverageIV(results);
Console.WriteLine($"The average voltage measured was {results.Voltage_V[0]} with a current of {results.Current_A[0]}");
Console.WriteLine("Press any key to turn off the supply and exit the program.");
Console.ReadKey();
TurnSupplyOnOrOff(dcPower, SupplyPowerMode.PowerOff, channelNames);
CloseSupply(dcPower, channelNames);
}
/// <summary>
/// This example illustrates how to use the NI-DCPower APIs to configure the SMU and measure the results.
/// </summary>
static void Main()
{
string channelNames = "0";
NIDCPower dcPower = new NIDCPower("4139", channelNames, false);
// Configure instrument settings
SupplyConfiguration supplyConfig = SupplyConfiguration.GetDefault();
supplyConfig.OutputFunction = DCPowerSourceOutputFunction.DCVoltage;
supplyConfig.VoltageLevel_V = 3;
supplyConfig.CurrentLevel_A = 0.001;
supplyConfig.VoltageLimit_V = 3;
supplyConfig.CurrentLimit_A = 0.001;
ConfigureSupply(dcPower, supplyConfig, channelNames);
// Configure measurement related parameters
MeasurementConfiguration measConfig = MeasurementConfiguration.GetDefault();
measConfig.MeasureWhenMode = DCPowerMeasurementWhen.AutomaticallyAfterSourceComplete;
measConfig.MeasurementTime_s = 2e-3;
ConfigureMeasurement(dcPower, measConfig, channelNames);
TurnSupplyOnOrOff(dcPower, SupplyPowerMode.PowerOn, channelNames);
MeasurementResults results = MeasureSupplyIV(dcPower, channelNames);
// Calculate the average of the acquired results
results = Utilities.CalculateAverageIV(results);
Console.WriteLine($"The average voltage measured was {results.Voltage_V[0]} with a current of {results.Current_A[0]}");
Console.WriteLine("Press any key to turn off the supply and exit the program.");
Console.ReadKey();
TurnSupplyOnOrOff(dcPower, SupplyPowerMode.PowerOff, channelNames);
CloseSupply(dcPower);
}
static void Main()
{
string channelNames = "0";
NIDCPower dcPower = new NIDCPower("4139", channelNames, false);
SupplyConfiguration supplyConfig = new SupplyConfiguration();
supplyConfig.SetDefaults();
supplyConfig.OutputFunction = DCPowerSourceOutputFunction.DCVoltage;
supplyConfig.VoltageLevel_V = 3;
supplyConfig.CurrentLevel_A = 1;
supplyConfig.TransientResponseMode = DCPowerSourceTransientResponse.Fast;
ConfigureSupply(dcPower, supplyConfig, channelNames);
MeasurementConfiguration measConfig = new MeasurementConfiguration
{
MeasureWhenMode = DCPowerMeasurementWhen.AutomaticallyAfterSourceComplete,
SenseMode = DCPowerMeasurementSense.Remote,
MeasurementMode = MeasurementConfiguration.MeasurementModeConfiguration.SinglePoint,
MeasurementTime_s = 2e-3,
MeasurementTriggerTerminal = "PXI_Trig0"
};
ConfigureMeasurement(dcPower, measConfig, channelNames);
TurnSupplyOnOrOff(dcPower, SupplyPowerMode.PowerOn, channelNames);
MeasurementResults results = MeasureSupplyIV(dcPower, channelNames);
results = Utilities.CalculateAverageIV(results, 3);
TurnSupplyOnOrOff(dcPower, SupplyPowerMode.PowerOff, channelNames);
CloseSupply(dcPower, channelNames);
}
