//搜索可用设备
private List <string> SearchConnectedDevice(string port)
{
rm = new Ivi.Visa.Interop.ResourceManagerClass();
ioobj = new Ivi.Visa.Interop.FormattedIO488Class();
selectabledevicelist = new List <string>();
string[] availabledevice;
string[] deviceInfList;
try
{
availabledevice = (string[])rm.FindRsrc(port + "?*INSTR");
if (availabledevice.Length > 0)
{
foreach (string addr in availabledevice)
{
try
{
ioobj.IO = (Ivi.Visa.Interop.IMessage)rm.Open(addr, Ivi.Visa.Interop.AccessMode.NO_LOCK, 50, "");
ioobj.WriteString("*IDN?");
deviceInfList = (string[])ioobj.ReadList(Ivi.Visa.Interop.IEEEASCIIType.ASCIIType_Any, ",");
string deviceinf = deviceInfList[0] + "," + deviceInfList[1];
selectabledevicelist.Add(deviceinf);
}
catch (Exception)
{
throw;
}
}
}
else
{
//备选设备列表置空,提示未搜索到设备
MessageBox.Show("没有搜索到可用设备,请确认设备连接状态", "未搜索到设备");
}
return(selectabledevicelist);
}
catch (Exception)
{
throw;
}
finally
{
try
{
Console.WriteLine("Session Ended");
ioobj.IO.Close();
}
catch { }
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(ioobj);
}
catch { }
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(rm);
}
catch { }
}
}
public void SendSCPIcommand(string str, string device)
{
rm = new Ivi.Visa.Interop.ResourceManagerClass();
ioobj = new Ivi.Visa.Interop.FormattedIO488Class();
try
{
ioobj.IO = (Ivi.Visa.Interop.IMessage)rm.Open(device, Ivi.Visa.Interop.AccessMode.NO_LOCK, 50, "");//在这里输入设备地址
ioobj.WriteString(str, true);
}
catch (Exception e)
{
Console.WriteLine("An error occurred: " + e.Message);
}
finally
{
try
{
Console.WriteLine("Session Ended");
ioobj.IO.Close();
}
catch { }
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(ioobj);
}
catch { }
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(rm);
}
catch { }
}
}
public VNAInterface(string GPIBConnectionString)
{
this.GPIBConnectionString = GPIBConnectionString;
rm = new Ivi.Visa.Interop.ResourceManagerClass();
io = new Ivi.Visa.Interop.FormattedIO488Class();
try
{
// connect to the VNA
io.IO = (Ivi.Visa.Interop.IMessage)rm.Open(GPIBConnectionString, Ivi.Visa.Interop.AccessMode.NO_LOCK, 0, "");
}
catch (Exception e)
{
Console.WriteLine("An error occured: {0}", e.Message);
Dispose();
throw;
}
}
