establish a VI to trigger data acquisition when certain conditions are met

[allbig]

Hello everyone ,
 
I am trying to put in place a system of automatic measurement of signals referred to as CLICK 
for nival particular amplitude , so I must achieved vi makes me a data acquisition oscilloscope 
when he perceives a signal having the amplitude and the desired frequency
 
Thank you in advance for your answers
 
*** CLICK
A disturbance whose amplitude exceeds the quasi-peak limit in a continuous disturbance 
whose duration does not exceed 200 ms and which is separated from a following disturbance 
by a minimum time interval of 200 ms.

I debute on labview ,
for now , I get to do a aquisition continues to give thanks to a loop, and 
a repor me is that generate each turn , I would like to know is how to acquire when 
my signal is a value exact crest , about 2 hours of measurement and that at the end it
 generates me a report of these particular requirements measured signals

[Bob_Schor]

Do you have any code?  You should post your code, which will give us a lot of information about your hardware, your software, your level of experience and expertise, and can clarify what you are trying to do.

You mention data acquisition.  What kind of data, what hardware are you using, what sampling rates, how many channels, etc.

What do you want to do with the data?  Note that you say "trigger data acquisition when certain conditions are met", but it sounds like the "conditions" are of the signals being acquired.  [You could say "Trigger acquisition at 12:35pm when the Red Button is pushed", which does not involve the data, but you mention amplitudes and time durations that sound like sampled data ...].

Bob Schor

P.S. -- when posting code, attach VIs, do not attach pictures.

[Blokk]

So I guess you want a continuous data acquisition, and monitoring. Also you need to detect peaks which obey special conditions regarding to amplitude and width. This is a common thing and can be done using LabVIEW.

First you should specify your hardware requirements. What kind of hardware you have already, or you wanna buy? What are the DAQ requirements? Analogue voltage input? Number of channels? Sampling rate? etc...

I suggest you to make such a requirement list first. As a second step, you should start to learn LabVIEW, see what kind of teaching material can you access (self-paced online training for example)? You can have a look of the many DAQ examples shipped with LabVIEW (go to Help --> Find examples --> and type in the search field: "Peak detection").

When you get more familiar with LabVIEW, come back here and attach your VI and show where you have found problems to solve your task...

Good learning!

[allbig]

here is the code for now

[allbig]

the extent that I want to respect EMC standard (EN 55014-1 ) , thus measuring a pulse generate by the change of state of a device such as a pump for example. when the pumping stage is triggered the device generates a signal click to call , I should measured.  

thank you

[allbig]

Hello ,
I was already coming to acquire continuous data , we now cover I wish I recorded the signal shape 
when they correspond to what I want , I send you herewith the form of a snap and the picture of my VI

For equipment I have a Tektronix oscilloscope connected GPIB

thank you

[Blokk]

Did you actually read what we wrote you? You should attach your real VI, and not a screenshot! Also, what are the sampling requirements?

edit: ok, so you have an oscilloscope, and GPIB interface. I do not think GPIB can be enough fast for real data transfer, I guess you get packages of acquired data, I never qorked with such config. Anyway, since we cannot look into the picture, I am just guessing. Also, you could have a look if there is LabVIEW driver for this textronics oscilloscope, so you would have more options...

[allbig]

here is my vi

[Blokk]

Sorry, I never worked with signal express, and I do not have it installed.

Maybe there is a way to read directly the data via a driver. What is the exact model of your oscilloscope?

Of course you can still use the SignalExpress, and deal with the data coming from it. What is the recent While loop iteration time?

[allbig]

I have no particular requirement Sample Rate