function generator virtual to physical

[kenypatel]

Hello, 

I know that labVIEW can work with the real world (physical) and the virtual world. labVIEW can communicate physical to virtual, meaning physical signals can be measured in labVIEW. However, can the opposite be done?

So, instead of labVIEW measuring signals from the real world can labVIEW send signals to the real world. In particular, I want to make a function generator in labVIEW (Virtual) and send it to a circuit using analog output devices. Is this possible to do? If so, is there any sample program where I can see how people have done so?

[crossrulz]

Of course.  Now what you need in order to actually get that signal into the real world depends on the specs of your signal and the circuit you are sending it into.  But for starters, look in the Example Finder (Help->Find Examples) and do a search for DAQmx Analog Output.

[Bob_Schor]

LabVIEW has a Function Generator VI that will make waveforms.  There are also hardware devices (some made by National Instruments) that have Digital-to-Analog capabilities.  The trick is to find one with sufficient output bandwidth for your needs.

Look in the LabVIEW Examples/Help for Function Generator.

Bob Schor

[kenypatel]

So I took a look at some of the examples provided my labVIEW and they actually seem pretty good. The block diagrams seem to be a bit more complex then what I am normally used to, but, for a function generator I wouldn't expect anything less. What are labVIEWs limitations on badwidth and frequency? Or should the question be about hardware's limitations and not labVIEWs?

[crossrulz]

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@kenypatel wrote:

What are labVIEWs limitations on badwidth and frequency? Or should the question be about hardware's limitations and not labVIEWs?

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That is a hardware issue, not the software language.

[kenypatel]

Also, in order for me to write my own function generator VI. What particular topics do you recommend I learn on labVIEW. I know DAQmx will be vital, but any tutorials or other resources anyone can point me to?