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signal n real time acquisition

hello\
i m the newbie of labview.
i was having problem in acquisition. the signal is analog voltage.the analog voltage may have 2 spikes(peaks),3 spikes, or even 4 spikes depending on the real time acquisition.
the problem arises is with sample i need to set. i set sampling frequency 5000Hz. if i set sample 5000Hz, the signal which has 2 spikes can be seen in graph indicator as 2 spikes.
however, the signal which has 4 spikes will be seen in graph indicator as if 2 signals which has 2 spikes.

should i use traditional daq?is any acquisition vi which does not require the user to input the sample no.?if there is, my problem is solved.
if there is no such vi, what i think is that to append both consecutive signal if in actual condition, the signals have 4 spikes.but i think it involves extra effort to do lots of looping.i may stuck there if i need to append signals.
here attached with the acquisitioin vi.




regards



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Hello,

When you say that you are looking for a VI that does not require the user to enter a sample number, what do you mean? You could set up the task to be continuous and the number of samples there would basically be the number of samples that you would acquire on every acquisition, and it would still be continuous. Could you also specify what is the Data Acquisition board that you are using.

Regards,

Raajit L

Message Edited by Raajit L on 02-28-2007 09:49 PM

Raajit L
National Instruments
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