float IIPowerSupply.MeasI(string strSelection, EPSupplyChannel channel, EPSupplyIRange range)
{
float imeas = -999;
imeas = SmuResources[strSelection].MeasureCurrent(channel, range);
return(imeas);
}
float IIPowerSupply.MeasI(string strSelection, EPSupplyChannel channel, EPSupplyIRange range)
{
double imeas = -999;
SmuResources[strSelection].SetupCurrentMeasure(false, false);
SmuResources[strSelection].MeasureCurrent(1, false, ref imeas);
return(Convert.ToSingle(imeas));
}
public float MeasureCurrent(EPSupplyChannel channel, EPSupplyIRange range)
{
//we don't need to set range for measure
double[] current = new double[4];
int ret = 0;
ret += Smu.Measure(((int)channel).ToString(), PxiSmuConstants.MeasureCurrent, current);
return((float)current[0]);
}
private double IRange_String(EPSupplyIRange val)
{
if (val == EPSupplyIRange._260x_3A)
{
return(3);
}
if (val == EPSupplyIRange._261x_1_5A)
{
return(1.5);
}
if (val == EPSupplyIRange._261x_10A)
{
return(10);
}
if (val == EPSupplyIRange.All100MA)
{
return(100e-3);
}
if (val == EPSupplyIRange.All100NA)
{
return(100e-9);
}
if (val == EPSupplyIRange.All100UA)
{
return(100e-6);
}
if (val == EPSupplyIRange.All10MA)
{
return(10e-3);
}
if (val == EPSupplyIRange.All10UA)
{
return(10e-6);
}
if (val == EPSupplyIRange.All_1A)
{
return(1);
}
if (val == EPSupplyIRange.All1MA)
{
return(1e-3);
}
if (val == EPSupplyIRange.All1UA)
{
return(1e-6);
}
if (val == EPSupplyIRange.Auto)
{
return(999);
}
else
{
return(0);
}
}
float IIPowerSupply.MeasI(string strSelection, EPSupplyChannel channel, EPSupplyIRange range)
{
try
{
_myVisaKeithley.IO.WriteString("print(smu" + channel.ToString() + ".measure.i())");
return((float)Convert.ToDouble(_myVisaKeithley.ReadString()));
}
catch (Exception ex)
{
throw new Exception("KeithleySMU: MeasI -> " + ex.Message);
}
}
float IIPowerSupply.MeasI(string strSelection, EPSupplyChannel channel, EPSupplyIRange range)
{
if ((int)channel < 8)
{
float nVal = -999;
Readcurrentamp((int)channel, out nVal);
return((float)nVal);
}
else
{
float nVal = -999;
AM371_READCURRENT((int)channel, out nVal);
return((float)nVal);
}
}
private void SourceSet(EPSupplyChannel val, double dblAmps, double dblClampV, EPSupplyIRange range)
{
try
{
_myVisaKeithley.IO.WriteString("smu" + val.ToString() + ".source.func = smu" + val.ToString() + ".OUTPUT_DCAMPS");
if (range != EPSupplyIRange.Auto)
{
_myVisaKeithley.IO.WriteString("smu" + val.ToString() + ".source.rangei = " + IRange_String(range).ToString());
}
else
{
SourceAutoRange(val, true);
}
_myVisaKeithley.IO.WriteString("smu" + val.ToString() + ".source.limitv = " + dblClampV.ToString());
_myVisaKeithley.IO.WriteString("smu" + val.ToString() + ".source.leveli = " + dblAmps.ToString());
}
catch (Exception ex)
{
throw new Exception("KeithleySMU: ISourceSet -> " + ex.Message);
}
}
public float MeasI(string strSelection, IIPowerSupply[] eqPSupply, float nplc, EPSupplyIRange range)
{
float measVal = -999;
PSupply_Selection(strSelection, eqPSupply, out _objPs, out _eChannel, out _eModel);
SetNplc(strSelection, eqPSupply, nplc);
measVal = _objPs.MeasI(strSelection, _eChannel, range);
return(measVal);
}
