generating an exponential decay graph

[dpkiley]

Hey I am trying to generate an exponential decay graph. I have tried a few different signal generator types but nothing has been even close. Can anyone help?

[johnsold · Accepted solution]

What have you tried?  Directly applying the mathematics seems to work.

Lynn

[Spectre_Dave]

You can use the Exponential Window (Signal Processing >>Windows) on a waveform.

[Waddah_Moghram]

I want to create a sine wave with a gaussian decay, and then use that in an analog voltage output and into an analog voltage input. Any suggestions?

[DaSage]

Hey WadMog,

If the graph above is what you’re interested in, you can use a Sine Wave VI with an Exponential Window VI to recreate the curve based on parameters of your choosing. Assuming you’re using DAQmx (are you?), you could then send this data to a DAQmx Write VI to create your analog output.

As this thread has already been marked with a solution, you might consider creating a new thread for greater visibility!

[Waddah_Moghram]

Here's one that I have that works.