Find zero crossing of input data signal in real time

[zporange]

Hi!

I'm trying to find the zero-crossing of function in real-time. Basically I'm reading in some data sampled in real time and want to find the first zero of its autocorrelation. Any ideas?

Thanks!

[Eric-J]

What version of Real Time are you running?

[zporange]

We are currently using Labview 8.6.

[Whit-E_Wall-E]

Hello,

Does the Zero Crossing PtByPt VI, seem like the function you are looking for?

There is also a Community Example that will perform Period Length Measurements using Zero Crossing Method.

If this function is not what you are looking for, please describe your hardware setup and where you are analyzing the data in Real-Time or on the Host VI?

[zporange]

Thanks that should do the trick!

-zporange