Approximation of a curve

[Chatla]

Hello all. I want generate a curve similar to the image given below and repeat it as cycles. Any thoughts?

[altenbach]

You could be looking for a mathematical formula to describe your signal or you could just create a lookup table that you repeat.

(How "similar" should it be? Maybe start with the first derivative of Gaussian or Lorentzian peak?)

[Chatla]

Thanks.Gaussian derivative would be better,can I select the curve at a particular region and loop it?

[altenbach · Accepted solution]

---

@Chatla wrote:

Thanks.Gaussian derivative would be better,can I select the curve at a particular region and loop it?

---

Yes, of course!

[Chatla]

1) I have some data points of graph in excel. I want to generate that graph in Labview?

2)  I have only one cycle of that wave form. After generating that in labview , how do I replicate that into multiple cycles?

[Chatla]

Could anyone help me?

[GerdW]

Hi Chatla,

---

@Chatla wrote:

1) I have some data points of graph in excel. I want to generate that graph in Labview?

2)  I have only one cycle of that wave form. After generating that in labview , how do I replicate that into multiple cycles?

---

1. Read the data from your Excel file using LabVIEW functions and display those data points in a graph…
2. Use BuildArray to "replicate" the waveform…

[Chatla]

Thankyou for replying, can you please brief about how to read data from excel using labview functions and display it in graph. I am new to Labview.

[GerdW]

Hi Chatla,

---

@Chatla wrote:

can you please brief about how to read data from excel using labview functions and display it in graph.

---

Are you using real Excel files (XLS* suffix?): use RGT functions.

When you use delimited text files then LabVIEW provides Spreadsheet file functions (aka DelimitedTextFile)…

---

@Chatla wrote:

I am new to Labview.

---

Did you notice those "Training resources" in the header of the LabVIEW board?