From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
12-30-2013 09:58 PM
johnsasikennedy@gmil.com wrote:
I am new to labview.
Yes, we are aware of that. Still, your posts contain basically no information on what you actually want and your VIs make very little sense.
Please write at least a paragraph telling us what you actually want to do with all this..
johnsasikennedy@gmil.com wrote:
I need it urgent.
First you need to help us explaining things in more detail.
12-30-2013 10:02 PM
i have time and amplitude in text file. i have to plot it in xy graph and after that i need to get fft for that graph with a frequency of 50 hz.
Sorry for my english.
12-30-2013 10:03 PM
... and please make a decision where you want to discuss this (e.g. here or here). THere should be exactly one active discussion about the same thing.
12-30-2013 10:05 PM
here itself
12-30-2013 10:07 PM
Hi altenbach,
Are u clear with my question???
12-31-2013 08:01 AM
If I understand correctly, you are starting with a text (spreadsheet-like) file of amplitude vs time and want to find how high the 50 Hz component of that data is, you don't care about anything else?
As I see it, you are going to have two problems here:
1. The LV FFT function assumes that you have evenly-spaced points (your time axis) and you don't. You're going to need to fix that with interpolation.
2. You have not read the LV Help file on the FFT function all the way down to the "FFT Details" part which will fix your other problem.
And what's the deal about "Waveform Graph"? I don't see any point to that one.
Help files are your friends. They really want to help you, please let them.
Cameron
01-03-2014 01:54 AM