Hello,
i would like to use a pair of E1437A ADC's for spectrum analysis up to 8 MHz, with the option to display cross spectrum.
Due to my limited VEE experience, that looks like a massive task, especially as I'm not yet familiar with VXI instruments.
Are there any program modules available that I could start from? Even waveform acquisition for the E1437A would be very helpful.
Thanks,
Adrian
i would like to use a pair of E1437A ADC's for spectrum analysis up to 8 MHz, with the option to display cross spectrum.
Due to my limited VEE experience, that looks like a massive task, especially as I'm not yet familiar with VXI instruments.
Are there any program modules available that I could start from? Even waveform acquisition for the E1437A would be very helpful.
Thanks,
Adrian
These VXI instruments were really what drove Plug-and-Play driver development - somehow even engineers weren't keen on poking registers in the VXI address space!
So the first question is, have you managed to get the driver working? I'd aim for something simple to start with such as fetching the serial number or the like before plunging into a measurement. I don't see an example for that unit in my VEE installation - you might have one on a CD that came with the instrument or do a search of this forum... or maybe someone else here has experience with the device.
Once you've done that though, I would imagine it would be fairly straightforward: set up the acquisition, start the acquisition, fetch the data and then use VEE's rather neat tools to swap from time to frequency domain - I think you can even put a waveform ( array mapped to time ) straight into a magnitude spectrum display and it'll do the FFT for you.
Let us know how far you've made it towards doing that and maybe someone here willl be able to nudge you along to the next step.
Edited by: Mike on Mar 18, 2015 3:41 AM