/// <summary>
/// Configures common settings for power meter.
/// </summary>
/// <param name="sensor">Specifies a reference to the instrument.</param>
/// <param name="commonConfiguration">Specifies the settings for power meter.</param>
public static void ConfigureCommon(ni568x sensor, CommonConfiguration commonConfiguration)
{
sensor.ConfigureAcquisitionMode(commonConfiguration.Channel_Name, commonConfiguration.Measurement_Mode);
sensor.ConfigureUnits(commonConfiguration.Units);
sensor.ConfigureTriggerSource(commonConfiguration.Trigger_Source);
if (commonConfiguration.Trigger_Source == ni568xConstants.Internal)
{
sensor.ConfigureInternalTrigger(commonConfiguration.Channel_Name, commonConfiguration.Slope);
sensor.ConfigureInternalTriggerLevel(commonConfiguration.Trigger_Level);
}
sensor.ConfigureRangeAutoEnabled(commonConfiguration.Channel_Name, true);
sensor.ConfigureCorrectionFrequency(commonConfiguration.Channel_Name, commonConfiguration.Frequency);
if (commonConfiguration.AveragingAutoEnabled)
{
sensor.ConfigureAveragingAutoEnabled(commonConfiguration.Channel_Name, commonConfiguration.AveragingAutoEnabled);
}
else
{
sensor.ConfigureAveragingCount(commonConfiguration.Channel_Name, commonConfiguration.Count);
}
sensor.SetDouble(ni568xProperties.ApertureTime, commonConfiguration.ApertureTime);
}
/// <summary>
/// Initiates a measurement, waits until the measurement is complete and NI-568x returns to the Idle state, and then returns the measurement result in the result parameter.
/// </summary>
/// <param name="sensor">Specifies a reference to the instrument.</param>
/// <param name="timeout">Specifies the maximum length of time, in milliseconds, to allow the read measurement operation to complete.</param>
/// <returns>The measurement results, in dBm.</returns>
public static double ReadMeasurement(ni568x sensor, int timeout)
{
double result = 0.0;
sensor.Read(timeout, out result);
return(result);
}
public void Run()
{
NIRfsg nIRfsg = new NIRfsg(resourceName, false, false);
ConfigureInstrument(nIRfsg, instrConfig);
Waveform waveform = LoadWaveformFromTDMS(filePath);
DownloadWaveform(nIRfsg, waveform);
ConfigureContinuousGeneration(nIRfsg, waveform, "PXI_Trig0");
ni568x sensor = new ni568x(powerMeterResourceName, true, true);
PowerMeter.ConfigureCommon(sensor, commonConfiguration);
bool measuredPowerInRange;
double measuredPower = 0.0;
double maximumDutOutputPower = paOutputPower_dBm + designedAccuracy_dB;
double minimumDutOutputPower = paOutputPower_dBm - designedAccuracy_dB;
Console.WriteLine("\n------------------------Servo Started ---------------------\n");
for (int currentServoStep = 1; currentServoStep <= maximumSteps; currentServoStep++)
{
nIRfsg.Initiate();
measuredPower = PowerMeter.ReadMeasurement(sensor, 10000) + Coupling_dB;
Console.WriteLine("Servo step: {0}", currentServoStep);
Console.WriteLine("Measured power (dBm): {0:0.00}", measuredPower);
AbortGeneration(nIRfsg);
measuredPowerInRange = (measuredPower >= minimumDutOutputPower) && (measuredPower <= maximumDutOutputPower);
if (measuredPowerInRange && (currentServoStep >= minimumSteps))
{
servoFailed = false;
break;
}
else
{
instrConfig.DutAverageInputPower_dBm += ((paOutputPower_dBm - measuredPower) * 0.95);
ConfigureInstrument(nIRfsg, instrConfig);
}
}
PrintServoResults(measuredPower);
CloseInstrument(nIRfsg);
sensor.Dispose();
}
