Measure Time?

[weeke]

How do you do that?

I am pretty new to labview (1 month)

[aeastet]

You can run the vi and get data then right click on the graph and go to the Data Operations selection in the drop down and then make current value default and save it.

[weeke]

Tim

The attached VI is something you can run (without PID)

I had someone help me out with measuring the time when White Plot is greater than Red Plot.

Now, how to measure and store the intersect values in Build Table when White Plot meets the Red Plot and measure the time between that?

[aeastet]

Will the red plot be changing all of the time or is it fixed after a while or always fixed?

[aeastet]

Also is the red siganl noisy? That will affect how we do this too.

[aeastet]

Will you be post processing the data or trying to run and take data?

[aeastet]

What time resolution are you looking to achieve? That we be very dependat on your sampling rate.

[weeke]

Tim

[weeke]

Tim

You manually have to play with the White or Red slider. Well, it would make sense why i want to measure the intersect values since i am manually playing with the sliders.

Since, you dont have the PID toolkit i just wanted you to see if you can come up with just storing the values when White plot meets the red plot twice and measure the time while white > Red.

I am not worrying about resolution, noise, rate.

I just want to create a Build Table VI with all the intercept values and time values.

Run the VI and manually change the slider positions of both the white, red plot to observe the situation

[aeastet · Accepted solution]

I think this does most of what you want with the operation that you provided. Let me know if I missed anything.

I would not store your up and down numbers as a string. They are very slow and you have to convert them to do that so I changes that in your exaple.