How to Create HeatMap

[aaliyu]

Good morning Everyone,

I am struggling to manipulate signals in Labview. I am hoping someone here can help please.

What I want to do is to generate pulse, and turn that pulse to heatmap which can then be displayed on a desired location on the graph.

I hope my description is clear and make sense. Please do help me out.

Thank you

[LVIEWPQ]

What do you have so far? 

[aaliyu]

Hi LHarris,

See attached. I have two signals; one carrying the voltage, and the other carrying the pulse.

The Vi is attached please

 

[wiebe@CARYA]

And how would you like to create a heatmap from two 1D signals?

[aaliyu]

Hi Carya,

Thanks for this question .I forget to mention I am new learning LabView , Any help with regards to the subject, I will appreciate that so much.

From your observation, it appears to me I still need to explore more, but in the meantime, please help. Thank you

[Kyle97330]

I'm guessing that you mean you want to do something like this?  Where you measure a bunch of pulses, overlay them, and the most common areas are a bright color like red, less common are green or blue or whatever, and then black is where there weren't any pulses?

If that's the case, then in LabVIEW you need to use an "Intensity" graph or chart:

https://www.ni.com/docs/en-US/bundle/labview/page/lvconcepts/types_of_graphs_and_charts.html

[NIquist]

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@Kyle97330 wrote:

I'm guessing that you mean you want to do something like this?  Where you measure a bunch of pulses, overlay them, and the most common areas are a bright color like red, less common are green or blue or whatever, and then black is where there weren't any pulses?

If that's the case, then in LabVIEW you need to use an "Intensity" graph or chart:

https://www.ni.com/docs/en-US/bundle/labview/page/lvconcepts/types_of_graphs_and_charts.html

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If he's actually trying to create an eye diagram there is a toolkit for that.  Some of the explanations might help even if he doesn't want to buy the kit:

Eye Diagram and Digital Signal Testing - NI

[wiebe@CARYA]

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@aaliyu wrote:

Hi Carya,

Thanks for this question .I forget to mention I am new learning LabView , Any help with regards to the subject, I will appreciate that so much.

From your observation, it appears to me I still need to explore more, but in the meantime, please help. Thank you

---

Yes, we can and will (if possible) help with the implementation, but only if we know what you want to make.

I can guess, but that often just adds to the confusion.

[aaliyu]

Hi Carya,

Thank you very much. The thing that I want to do is to implement partial discharge acquisition program. Where the voltage signal coming through one of the channels, and the PD pulse through the other channel, so that when I display, I get the PD pulse as heatmap on the plot. Hope that make sense.

Thank you a lot.

[NIquist]

🤔 It actually doesn't make much sense.  I looked up PD testing and it sounds like you're doing something similar to a Hi-Pot (High Potential) test where you check the quality of the insulation in an electrical system.  Is that right?  What's mainly confusing is your use of the term "Heatmap".

This is a heatmap:

I think what you really want is a waterfall plot which can show how a repetitive signal changes over time by plotting each successive waveform a different color:

We can certainly help either way but please try to be specific with your questions.  Draw a picture if you need to, we won't judge your art skills. 😋