05-23-2012 03:27 AM
I have been trying to open some UFF58b files in Signal Express. Unfortunately with the larger files (300 - 500 MB) the program crashes as soon as I try to review any of the waveforms. The stored functions are short bursts of vibration data from 22 channels. Is it possible to extract a set of 22 functions with the same timestamp using Signal Express?
Alternatively, what is the best way to extract a dataset using Labview? I have been looking at the Data Storage VIs and can succesfully open the files with Open Data Storage (UFF58b). Is it possible to set up a Query to select a particular Timestamp?
Solved! Go to Solution.
05-29-2012 05:13 AM
Hello,
Would you be able to attach a small UFF58b file as an example of the dataset you are working with? From what I understand you wish to extract a value from each function for the same moment in time?
Kind Regards,
05-29-2012 09:29 AM
Hi
The attached UFF58 file shows one set of Time Waveforms for 22 sensors captured at the same time.
Please Note: I have renamed it as a txt file as uff is not recognised as a valid extension for an attachment.
The files I am working with contain 15000 - 18000 Time Waveforms (22 channels x 700 approx Time&Date (Record 3?))
Ideally, I would like to split the original file into 700 approx Time/Date files. This would allow me to view a block of all 22 channels relatively easily.
I don't need to extract sections of the Time Waveforms as they are only 2-3 seconds long and easily manageable.
Regards
Paul
05-30-2012 11:46 AM
Hi Paul,
Thanks for that. Please see this example which I just created to perform what you described. At present you can specify the Record 3 timestamp you are interested in and it will return those waveform functions.
I hope that helps.
Kind Regards,
05-31-2012 02:05 AM
It works perfectly!
Many Thanks