Home Community Discussion Forums Additional NI Product Boards SignalExpress Topic

SignalExpress

cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 

Multiple signal types in one chart

Multiple signal types in one chart

‎03-19-2013 09:43 AM - edited ‎03-19-2013 09:46 AM

Hi there!

 

I need some help to understand if it is possible to do what I intend to do using SignalExpress LE.

The task is actually quite simple. I need to start a measurement of 2 analog, 2 digital and 1 frequency channels. The sampling speed is moderate, 5kHz. During logging I wish to be able to see the signals "live" and afterwards I want to compare signals and measure time between signal events in the graph.

I tried with a simulated device (since I have not yet one), the USB-6211. This failed due to the model only being able to poll the frequency channel (I think so since I was not able to select continuous samples). Therefore I tested by simulating with USB-6341 and made this setup:

 

 

Test setup

 

Now I have some questions:

  • Are the steps (on the left) performed in sequence or in parallel?
  • Can I plot all signals in one graph so I can correlate them and zoom and measure all together?
  • I wanted to log the signals but I couldn’t include the frequency channel (see the little dialog box). Shouldn’t that be possible?
  • I’m also confused by the fact that the frequency plot has Volts on y-axis and not Hz.
  • Do I really need HW timing on digital I/O to perform this “simple” task? Which means a more expensive HW…

 

Many thanks for any input!

 

Regards,

Nicke

Download All
0 Kudos
Message 1 of 1
(5,490 Views)
Reply