LabVIEW
More point for IV curve
Solved!
So they are sampled. Sample at a higher rate (or longer), and you'll have more points.
Or interpolate between the points, but those points will be fake.
Search LabVIEW like a graph! If you use quick drop you can find "Spline Interpolation 1D.vi" easily.
It has an array of X values and one for Y values. Now you also need to provide an array Xi of desired output values. This can be from a ramp (from min to max), or by creating points between each two X values (also interpolation). If you feed those three inputs to the VI, it will output an array Yi values, one for each Xi.
But this is just one way to interpolate. The choice depends very much on the signal. I'd suspect Spline interpolation to work well for your signal though.
I think we fist have to establish some common ground here. It seems we're talking about entirely different things here.
I think you're situation is this:
1) you have IV data in a file
2) you read the I and V in LabVIEW
3) you want to show them in a graph
4) the curve has not enough points
5) so you need more points
Can you confirm that or, in detail, describe your situation?
First of all, Stop posting the same photograph of your screen. That's just plain silly and once is enough! IF you want us to see your data, simply attach these text files. Secondly, your "currents" are quantized to 0.025A, and they often don't change between successive readings. This means that your measuring device is very simple (8 bit DAQ?) or your gain settings is highly inadequate. It seems to be that you don't like the "steps" caused by this quantiziation,
The visible data is very featureless, so I would probably try to use a low order polynomial (as I suggested long ago) To display your data as a smooth curve without steps. Did you try it?
