Campbell-Graph for Engine-RunUp

[josh-DU]

Hello,

we want to write a VI to analyze an engine run-up and display the spectrum in a Campbell-Graph, or Colour-Map in Labview 2009.

We got two Signals (Engine Revolution and Motor Sound), merge them with the VI Spectral-Map and send them to the Colour-Map Graph.

It all works to that point, but the Graph does not keep the data when the program is running.

Does anyone know a solution to that? Or another way (or VI) to visualize this matter?

We are Labview-Newbies, so we know our problem is probably not so hard to solve, we just do not know how.

Thank you very much!

[GerdW]

Hi josh,

graphs only display the data wired to them…

When you want to keep a history (like a chart does on it's own) you need to create an array holding these history data!