Arbitrary waveform and Append waveform

[VladTepesRo]

Hello everyone!

I Intend to create an arbitrary waveform and append it with a classical one (sine wave), the working frequency of appended waveform I want to be in the range of 5k-200k Hz.

In Append waveform DBL, which channel is the dominant frequency?

In Arbitrary waveform VI, how to adjust the frequency and samples to achieve a range of 5k-200k Hz?

I try to increase the frequency of this appended waveform to 5k-200k Hz .......

Thank you!

[GerdW]

Hi Vlad,

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@VladTepesRo wrote:

In Append waveform DBL, which channel is the dominant frequency?

In Arbitrary waveform VI, how to adjust the frequency and samples to achieve a range of 5k-200k Hz?

 Did you notice that coercion dat at AppendWaveforms function? Do you know its meaning?

• You create an array of samples using one function and a waveform using a different function: when you want to define waveforms you should create waveforms in all your code!
• You can convert an array of samples into a waveform using the BuildWaveform function…
• You could look inside the AppendWaveform function to learn how the waveforms are appended. Usually the first/upper waveform defines t0/dt… (After looking into that function it checks the dt value of both waveforms.)
  
• When you want to change the frequency of a waveform you just need to manipulate the dt item of that waveform!

[VladTepesRo]

I want to create a custom control signal to operate a power MOSFET transistor to generate a variable electromagnetic field through an antenna.

I have attached an image with an example of a command signal that I would like to generate (a combination of arbitrary amplitudes and classical waveforms).

What would be the best way (functions, blocks....) to make the signal through Labview? ....as hardware I use USB NI 6341.
Thank you very much!

[GerdW]

Hi Vlad,

I see some ramps and sine signals in your example image…

Use any of those SignalGeneration functions to build your waveform!