public int GetData(string sparam, out Double[] MagData, out Double[] PhaData)
{
string mode = GetMode();
SetSmithChart();
int numpoints = GetPoints();
Double[] data = new Double[numpoints];
IMessageBasedFormattedIO io = session.FormattedIO;
write(":CALC1:PAR1:DEF " + sparam);
Thread.Sleep(GetWaitTime(numpoints));
write(":CALC1:DATA:FDAT?");
io.Scanf("%,f", out data);
MagData = new Double[numpoints];
PhaData = new Double[numpoints];
for (int i = 0; i < numpoints; i++)
{
double magnitude = data[i * 2];
double phase = data[i * 2 + 1];
MagData[i] = magnitude;
PhaData[i] = phase;
}
SetMode(mode);
return(numpoints);
}
/// <summary>
/// 关闭连接
/// </summary>
private void Disconnect()
{
if (ibfIo != null)
{
ibfIo = null;
}
}
/// <summary>
/// Dispose of the device connection.
/// </summary>
public void Close()
{
// Dispose of the instrument connection if it is not null.
((IDisposable)_instrument)?.Dispose();
// Free the reference to the session.
_instrument = null;
}
public void SetFrequency(double start, double end)
{
IMessageBasedFormattedIO io = session.FormattedIO;
write(":SENS1:FREQ:STAR " + start.ToString());
Thread.Sleep(10);
write(":SENS1:FREQ:STOP " + end.ToString());
Thread.Sleep(10);
}
public string GetMode()
{
IMessageBasedFormattedIO io = session.FormattedIO;
write(":CALC1:FORM?");
string mode = read();
return(mode);
}
public int GetPoints()
{
IMessageBasedFormattedIO io = session.FormattedIO;
write(":SENS:SWE:POIN?");
long num = io.ReadInt64();
Debug.Print("Num points: {0}", num);
return((int)num);
}
/// <summary>
/// 使用lvi.Visa库中的类打开与设备的会话(方式1)
/// </summary>
/// <param name="resourceName">资源名称，例如"TCPIP0::192.168.0.10::inst0::INSTR"</param>
private void connectDevice(string resourceName)
{
try
{
ITcpipSession session = (ITcpipSession)GlobalResourceManager.Open(resourceName);
ibfIo = session.FormattedIO;
ShowMsg("*[" + DateTime.Now.ToString() + "] " + "Connect to the device successfully!:lvi.Visa.");
}
catch
{
lbxReception.Items.Add("*[" + DateTime.Now.ToString() + "] " + "Can't connect to the device!:lvi.Visa.");
}
}
public double[] GetFrequencies()
{
int numpoints = GetPoints();
Double[] frequencies = new Double[numpoints];
IMessageBasedFormattedIO io = session.FormattedIO;
write(":SENS1:FREQ:DATA?");
Thread.Sleep(500);
io.Scanf("%,f", out frequencies);
return(frequencies);
}
public void Disconnect()
{
try
{
session.DisableEvent(EventType.AllEnabled);
session.Clear();
io = null;
session = null;
}
catch (Exception exception)
{
throw CreateThrowUpException(exception);
}
}
public void write(string str)
{
IMessageBasedFormattedIO io = session.FormattedIO;
try
{
io.PrintfAndFlush(str);
}
catch
{
Console.WriteLine("PrintfAndFlush failed");
session.Dispose();
session = null;
return;
}
}
public string read()
{
IMessageBasedFormattedIO io = session.FormattedIO;
//string[] response = new string[] { "", "", "", "" };
string response;
try
{
response = io.ReadLine();
}
catch
{
Console.WriteLine("Scanf failed");
session.Dispose();
session = null;
return(null);
}
Debug.WriteLine(response);
return(response);
}
/// <summary>
/// Search for and then open a device.
/// </summary>
/// <remarks>
/// By default, the first USB device found is opened.
/// </remarks>
/// <param name="pattern">string to match in resource names</param>
/// <param name="index">which of the instruments matching the pattern to open</param>
public void Open(string pattern = VisaPattern.USB, int index = 0)
{
try
{
// Find all available instruments.
string[] resourceStrings = Find(pattern).ToArray();
// Open a connection to the desired instrument.
_instrument = GlobalResourceManager.Open(resourceStrings[index]) as IMessageBasedFormattedIO;
}
catch (EntryPointNotFoundException ex)
{
throw new DevicePortException("The IVI.VISA dll appears to be missing."
+ Environment.NewLine + "It must be installed as a separate package."
+ Environment.NewLine + "Details:"
+ Environment.NewLine + ex.Message);
}
catch (IndexOutOfRangeException ex)
{
throw new DeviceCommunicationException("Device was not found."
+ Environment.NewLine + "Details:"
+ Environment.NewLine + ex.Message);
}
}
public void SetMode(string mode)
{
IMessageBasedFormattedIO io = session.FormattedIO;
write(":CALC1:FORM " + mode);
}
public void SetPoints(int num)
{
IMessageBasedFormattedIO io = session.FormattedIO;
write(":SENS1:SWE:POIN " + num.ToString());
}
public void Connect(string deviceName, VISASessionType sessionType)
{
switch (sessionType)
{
case VISASessionType.USB:
{
session = new UsbSession(deviceName);
break;
}
case VISASessionType.Serial:
{
session = new SerialSession(deviceName);
break;
}
case VISASessionType.TcpIp:
{
session = new TcpipSession(deviceName);
break;
}
case VISASessionType.TcpIpSocket:
{
session = new TcpipSocketSession(deviceName);
break;
}
case VISASessionType.GPIB:
{
session = new GpibSession(deviceName);
break;
}
case VISASessionType.PXI:
{
registerSession = new PxiSession(deviceName);
break;
}
case VISASessionType.VXI:
{
session = new VxiSession(deviceName);
break;
}
default:
break;
}
if (session != null)
{
try
{
session.EnableEvent(EventType.UsbInterrupt);
io = session.FormattedIO;
return;
}
catch (Exception exception)
{
throw CreateThrowUpException(exception);
}
}
}
