LabVIEW
Creating a Pressure waveform with Labview and DAQ NI USB-6343
Hello Community:)
I am trying to generate a sine wave form as a pressure input such that the pressure increases gradually and struggled getting it to work with the DAQ NI USB 6343 and a connected pressure regulator.
This is the section without the waveform, just a steady pressure value.
This is a screenshot of the "set psi" sub VI:
So I modified the two sections. I tried putting in different waveform generators (Signal Builder, Basic Function Generator, etc.) and they all caused trouble in communicating with the DAQ because of the changed input format (I think). When I changed the “Pressure (psi)” input, it looked something like this (depending on the block I used):
The error messages I got for the two different configurations (with different selections for the DAQ inputss) are attached. I tried different modifications of the DAQ input (single channel/multiple channel and single sample/multiple sample etc.). Even when I managed to get no error message when starting the program and a working waveform as a pressure input (visualized), the conversion from pressure input wave to voltage just didn’t do anything so there was no voltage input to the regulator.
I would be very happy if anyone could tell me what is going on.
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