Position Vs Time for LVDT

[JCollado]

aeastet

This is what I want but I can't get it to work off my data array without the data you generated.

I have a constant array that simulates the curve and I can't get it to do what you did with the xy graph or even to display the different peaks time so I can then take the delta time.

Thanks

[aeastet]

You may need to set the limits higher or lower depending on the magnatude of your data. If you send me some data I can see if I can get it to work on your data.

[JCollado]

Here is the VI i'm testing this on with the array for simulated curve.

Maybe the Array does not have enough data points?

I added your controls and block diagram functions.

Sorry about how ugly this looks but I have added a few other things that are getting me some info i need.

Just click the get signal button to get the graph data.

[aeastet]

I took the hard coded array that you had in your code any took it into my VI. I changed the peak threshold to .05 and it seemed to work. I added it your your VI and aslo made it look at the last sample to get the final condiditon. Here are both.

[aeastet]

I took the hard coded array that you had in your code any took it into my VI. I changed the peak threshold to .05 and it seemed to work. I added it your your VI and aslo made it look at the last sample to get the final condiditon and I changed the peak threshold to .05 and made it the default value. Here are both. I could not test it on yours because I did not have all of the VI's needed. You may need to set the threshold on my VI to .05 as I am not sure if I canged it to the default value.

[aeastet · Accepted solution]

I had to disconnect your type def at the top but I did get yours working with this idea. See attached.

[JCollado]

Great!

Thanks a lot.

I have much to learn. To this point I did not know how to use the XY graph. I guess in order to automate time measurement like this I must use an XY graph?

no way to do what you did with a regular graph or chart?

Thank you

J Collado

[JCollado]

Here is more or less what I was looking for using the waveform's cursors.

I just took the derivatives solved by AEASTEST and displayed the time as I wanted it displayed.

Thanks for your help AEATEST.

JCollado

[aeastet]

No problem. I was fun to develop something like this. I am sure that I will need this in the future.

[JCollado]

 aeastet

Using the same idea on a different project.

I can't get the second derivative to work with  a larger sample size.

Not really good with all the higher end math functions . 🙂

See the attached VIs in the zipped file. I added all required VIs to run this. If it ask to locate a VI they are all in the same folder. This is working but not the way I want it to work. The cursors are going to the location I want them to ecept I would like to place them on locations that is different every time.

This VI will almost do the Job but I do not like to place the second cursor on a specific location for the snubbing. The snubbing starting position is a variable position for different actuators.

I would like to do this the same way you did the previous VI using derivatives . Any way you can wire this to work with derivatives functions?

Thanks for your help.

JCollado