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Showing results for tags 'waveforms'.
Found 3 results
Selecting signals by user - Waveform chart
nagesh posted a topic in LabVIEW GeneralHi folks, I need to know if this is possible? if yes then the what are the possibilities?? 1. The user should select the signals (by check box or similar). 2. My waveform chart should display only these signals on the front panel. (no of signals in the waveform chart must be modified based on this signals). 3. it is better, by clicking a button the new front panel pops up with waveform chart.
Slow Waveform Concanenation
ctr26 posted a topic in Application Design & ArchitectureHi All, I have 3 analogue and 2 digital waveforms that I want to repeat multiple times with a delay between them. I could do this programmatically using a while loop during their playback but ideally I'd like to create a waveform as a delay and concatenate them all so that the resultant waveform is the what will be sent. My current solution is to have a pair of for loops inside a larger for loop. The sub for loops concatenate the waveforms with the shift registered waveforms and then with a waveform of my choosing (the delay waveform). Attached is a snippet of code. However, to produce a waveform that has 200 repeats takes around 20 seconds to build. This is not ideal and considering it is just array manipulation I feel like there is a fast way of doing this using the in place operator, but I don't personally know how. Any advice welcome, Thanks, Craig
Using timestamps to integrate data at specific values
kap519071680 posted a topic in LabVIEW GeneralI'm trying to integrate data from one waveform graph that depends on the timestamps of another. What I have setup is digital waveform and an analog waveform and I would like to integrate over data from the analog waveform whenever the digital goes high. My idea on how to approach this was to check when the digital input goes high and then low, and at the those timestamps as my limits of integration, however, I'm not sure how to go about this. What I have tried to do was to take the digital input data and AND it with 1 to see if it is high, and then take that data and store its timestamp in an array and then input those values when integrate, but this is not the correct approach because it will not give me the right intervals for integration. I think what I am having trouble with is getting the timestamps of when the digital input goes high and then back to low. Does anyone have any idea on how to approach this problem? I would appreciate any suggestions. Thank you!