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Output with no Input?
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leachdor
Jun 6, 2008, 1:10:28 PM6/6/08
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Hi all, I'm new to the DAQ world, most of my LV experience is with controls. I've been working on a program and i'm getting some strange results.Attached is a plot of an output from DAQ assistant polling 3 channels simultaneously from a USB-9233:I'm trying to get vibration levels but it seems, with or without the BNC cables hooked up there's always 1 channel that seems to have a signal (even a small one but its a whole factor of 10 off from the rest)Any idea whats going on? The attached picture is with nothing attached to the DAQ, its just plugged in and reading unconnected terminals (which should show very close to zero)
Vibration.PNG:
http://forums.ni.com/attachments/ni/100/1769/1/Vibration.PNG
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