How to read the txt file that has words in between?

Hi all

I'm using Labview 8.2.

I would like to read a text file.  I have given (after whenever he was on average more than 100 waveforms) several times recorded on the file.  The idea is to further improve the SNR in post processing by averaging once again the data (which was on average about 100 wave forms).

I can get LabView to save the data in the file several times, then it keeps joins.

The problem is to read data from labview, so I can on average now again.  The problem is the labview separates data sets with the following:

"Channel 1".
9925 samples
Date 28/10/2008
Time 17:16:11.638363
X_Dimension time
X 0 - 3.0125000000000013E - 3
Delta_X 2.500000E - 6
"End_of_Header."

Then when I read it, he sees only the first set of data.

Can someone tell me please how to read all the datasets under labview?

I am attaching the file I want to read 'acquiredwaveform.txt' and the VI base (really basic btw) to play the file.

Thank you

This seems to be a standard LVM-file.  You can read segments of different data using the VI Express LVM loop (make sure that the file retains its extension .lvm).  I modified your example to show this.

Note that my example is quite inefficient. Table of primitive construction causes a massive memory copy whenever it is used, and you would be probably better on average that you read in.  I made this way to make it more obvious how read segments of a file LVM.  In the process, I noticed that you have a good amount of phase jitter (zoom in on the graph of all the three waveforms).  With an average simple will make you smear on your waveforms.  You can either fix the problem in hardware (recommended) or phase shift your data so it lines up before on average.  If you need help with it, let us know.

Tags: NI Software

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