Filtering a signal

[Gio1988]

Hi everibody,

i have a problem which i am trying to solve.

From my cDAQ i acquire a signal from a Laser.

The value i receive, fluctuate between 69,14 and 69,22. I would reduce this vibration to have a signal constan.

In atteached there is a picture of my acquired waveform.

How can i reduce this fluctuation?!

Thanks

[GerdW]

Hi Gio,

How can i reduce this fluctuation?!

Change the Y scaling of your chart! 😄

Serious background, even when there is a smiley: Right now you show a range of 0.08 on your Y scale - for a value of ~69.2! This is just 0.12% of the mean value.

How accurate is your measurement system?

What's the expected error of your measurement?

Simple solution to your problem: use a running average (aka PtByPt-Mean)!