Limit testing on test waveform signal

[briedis]

Hi All,

I am measuring a frequency response (using NTI audio analizer) on a device and need to test if the waveform measured is within accepted tolerance range or not. The NTI audio analyzer has Labview drivers and I am able to measure the signal, but now I need to compare it.

I fount that "Limit Testing.vi" would probably help here but my company has only Basic version of Lab view while "Limit Testing.vi" requires full version. 

Another question:

When The signal is measured the output data type is 1D array of / cluster of 2 elements, but I want to extract DBL data of x and y values and the "Unbundle" vi does not accept this input type.

Maybe I am missing something simple?

I would appreciate the help.

[LucFr · Accepted solution]

Hello briedis,

About your first question, indeed the only way to be able to access this library would be by upgrading your LabVIEW version to either the full or the professional one. You can always contact NI in case you want to know more.

In case that is not possible you could develop you own API or library. I have attached an example of what you could do and then you can build your solution based on it.Range test example

About your second question, the wire breaks down because the output is of an 1D array and the unbundle function only receives multiple data, not one at a time. What you could do is inserting it into a For Loop because it will receive the first element of the array in each iteration and as it is an auto-indexing function, you will be able to receive the first element as far as the VI is running thus taking all values of x and y in the data format you want. I also inserted an example below (Cluster to DBL). 

Any further questions please just let me know.

Best regards,

[briedis]

Thank you Lucas for your help. I do really appreciate your fast response.

I will try these solutions.