public static MeasurementResults MeasureSupplyIV(NIDCPower supplyHandle, string channelNames = "")
{
MeasurementResults results;
DCPowerMeasurementWhen measureMode = supplyHandle.Measurement.Configuration.MeasureWhen;
int samplesToFetch = supplyHandle.Outputs[channelNames].Measurement.RecordLength;
supplyHandle.Control.Initiate();
switch (measureMode)
{
case DCPowerMeasurementWhen.OnMeasureTrigger:
case DCPowerMeasurementWhen.AutomaticallyAfterSourceComplete:
DCPowerFetchResult fetchResult = supplyHandle.Measurement.Fetch(channelNames, new PrecisionTimeSpan(1), samplesToFetch);
results.Voltage_V = fetchResult.VoltageMeasurements;
results.Current_A = fetchResult.CurrentMeasurements;
break;
case DCPowerMeasurementWhen.OnDemand:
default:
DCPowerMeasureResult measureResult = supplyHandle.Measurement.Measure(channelNames);
results.Voltage_V = measureResult.VoltageMeasurements;
results.Current_A = measureResult.CurrentMeasurements;
break;
}
supplyHandle.Control.Abort();
//Calculate power
results.Power_W = new double[results.Voltage_V.Length];
for (int i = 0; i < results.Voltage_V.Length; i++)
{
results.Power_W[i] = results.Voltage_V[i] * results.Current_A[i];
}
return(results);
}
public void SetDefaults()
{
MeasureWhenMode = DCPowerMeasurementWhen.OnMeasureTrigger;
SenseMode = DCPowerMeasurementSense.Local;
MeasurementTriggerTerminal = DCPowerDigitalEdgeMeasureTriggerInputTerminal.PxiTriggerLine0.ToString();
MeasurementMode = MeasurementModeConfiguration.SinglePoint;
MeasurementTime_s = 1e-3;
}