low pass filter and peak detection

[yazan206]

Hello everyone, 

my code generates two different waveforms and im using NI 6009, however i am uncertain on how and very exactly to implement low pass filter in order to acquire smoother plots, in addition, i want to be able to use peak detection script in labview.

Thank you 

[McQuillan]

The most simple way would be to use the in-built functions in LV.

These should do the job 🙂

[yazan206]

Hi Tom,

what are the recommended values for fs, fh and fl. 

Cheers, 

Yazan

[jwscs]

all VIs have default values for their terminals, that doesn't mean they are recommendend in general (and i don't know either).

i think you will have to play with it a little.

as a starting point, i added the snippet .png which you can save and drag+drop onto a block diagram.

regards

[yazan206]

Ive added the low pass filter on my block diagram but i havent been able to achieve that smooth curve. I am using a NI USB-6009 for my project and my frequency is 2 kHz.the top is the main output plot, and the other two are after i placed the low filter pass you can see from my block diagram i attached. Thanks in advance.