Hello,
I'm using Measurement Studio .Net in C# to save data from a NI USB-6210 to a TDMS format file. I am scaling the data with a LinearScale:
LinearScale scaleTest = new LinearScale("Test", 11, 2);
scaleTest.PreScaledUnits = ScalePreScaledUnits.Volts;
scaleTest.ScaledUnits = "N";I set up a NationalInstruments.DAQmx.Task task and create a voltage channel:
task.AIChannels.CreateVoltageChannel(0,"TestChannel",AITerminalConfiguration.Rse, 0, 10, "Test");
task.Timing.ConfigureSampleClock("", 1000, SampleClockActiveEdge.Rising, SampleQuantityMode.ContinuousSamples);
task.ConfigureLogging("TestFile", TdmsLoggingOperation.OpenOrCreate, LoggingMode.LogAndRead, "Test");
all of which as far as I can tell works fine and I get the expected data in a TDMS file format which I can view in Diadem. The problem is that I can't find the values that have been used for scaling and offset in the metadata.
I'm looking at the Measurement Studio 2015 Support document (.chm format) and find on the page "Properties Autogenerated by the TDMS Library":
Scaling Properties
When you use NI-DAQmx to stream raw data and scaling information into TDMS files or the LabVIEW TDMS Create Scaling Information node to create customized scaling information, the following properties are created.
and then a list which includes the properties I am after, Linear_Slope and Linear_Y_Intercept. Does anyone know how I can retrieve this information from my file?
Thanks,
Tim