I need to send triangular waveform as an input to my Keithley 6517b Electrometer

[Pranav915]

Hi, 

I have built a VI that does the square wave & staircase sweep test in keithley 6517b. But I also need to perform Triangular/Sinusoidal Waveform test. But it is not inbuilt in the electrometer. Is there any way by which I can send the source voltage in a triangular waveform & read the resistance data accordingly. 

[Pranav915]

Hi there,

I am having a similar problem for my Keithley 6517B Electrometer. Did you find any solution for that?

[GerdW]

Hi Pranav,

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@Pranav915 wrote:

I am having a similar problem for my Keithley 6517B Electrometer.

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Instead of posting in an 20+ years old thread you should describe your problem (as it is just "similar" and not the "same")!

So what is your specific problem?

Which LabVIEW version do you use?

What have you tried so far?

Mind to attach your VI?

Edit:

All those questions also apply to your other message…

[Pranav915]

I would like to send the voltage in a triangular waveform to my electrometer & get the resistance readings accordingly. I have created a VI that can perform square wave & staircase sweep test on the electrometer. But it does not have a triangular wave sweep test. Therefore, I am creating a VI in which I create a triangular waveform through Simulate Signal Function of LabView & then send it in an array form.

But the frequency at which I send & at which the cycle is completed is different. If I set frequency at 1Hz it takes more than 30 seconds to complete while it also depends on amplitude. 

I need a solution to that or if is there any other better way to do it?

I am using LabView version 2022 Q3.

[Pranav915]

Okay, I have created a new thread.

Thank You.

[GerdW]

Hi Pranav,

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@Pranav915 wrote:

I am using LabView version 2022 Q3.

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Many of us still use older LabVIEW versions, so you get a broader audience when downconverting your VI. (File->Save for previous)

I prefer LV2019…

[Pranav915]

Here is the 2019 Version

[GerdW]

Hi Pranav,

your VI works as programmed:

I did some cleanup and left comments…

That loop processes each sample in your signal array, one after the other. What else do you want to do?

[Pranav915]

Hi,

Does it complete the triangular waveform according to the frequency set by us? 

When I start the triangular waveform test. If I set the frequency to be 1Hz it takes more than 15 seconds to complete the cycle.

Also please could you share the edited VI.

[GerdW]

Hi Pranav,

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@Pranav915 wrote:

If I set the frequency to be 1Hz it takes more than 15 seconds to complete the cycle.

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Because that's the time needed by all the code inside the loop (and by your device to handle all the commands&responses)...