Peak and Valley Detection

[Treble20]

Hi,

I`m looking for a nice way of splitting a curve up into different parts. The curves can have 1 sweep or n sweeps like in the images.

I can already count the number of peaks and valley but i can`t figure out a neat way of getting the indicies of the highest point of each peak and the lowest point of each valley. I`ve attached a couple of images of what i`m trying to do.

Any ideas most welcome.

Thanks

James

 

[daveTW · Accepted solution]

Hello Treble,

have a look here

[Duffy2007]

Hello Treble20,

try the function Peak Detector VI.

The interesting part is to find a good threshold and width setting for the different wave forms.

[Treble20]

Hi Dave,

Perfect starting point to sort my problem out. I know there was something simple that would do this.

Many thanks

James

[Treble20]

That's my next task as it works well on a few curves but not all curves. I have the starting point to work on though.

Cheers for your help.

James