Hi there,
I am trying to synchronize data acquisition between two different instruments using LabView.
One instrument will be operating independently (it can't be integrated with LabVIew for a number of reasons), and the timing signal from that instrument which I want to use (5.76 V square pulse, 25 ns wide, occurs aperiodically) is 'extracted' (I made a breakout box and have the timing signal on a coax which I can plug into anything).
I want to take that timing signal and use it to trigger some event in LabView (the second instrument is controlled with LabView).
I had hoped that a USB 6501 would be able to do the trick, but I realize now that it can't see a signal which is so short (I think).
So what should I do? How can I make LabView 'see' such a narrow pulse and use that to trigger some event?
In summary:
- Have digital signal coming from a piece of hardware on a coax - 5.76 V rectangular pulse, 25ns wide, occurs randomly nut not more often than every ms
- Want to input that digital signal into my PC and LabView where I will use that signal to trigger an event (in this case, start a data acquisition event on a different piece of hardware which is controlled with LabView)
- I am using LabView 2013 64 bit, Windows 7x64
- I was hoping to use NI-USB 6501 but I'm not sure it is possible since pulse is so narrow
- A photo of the timing signal as seen on a scope is attached (note there is a tiny bit of ringing which won't be present when I fix the cable)
Thanks,
Sabrina