Is is possible to create an analysis for signal?

[saihah]

Hello

Is it possible to create an analysis for a waveform after it has been acquired through visual basic? As i m able to capture the signal for now but unfortunately i didn't manage to get the analysis part.

[hoffiz]

Hi Saihah,

I have a couple of questions: What national instruments are you using? What are the characteristics of the signal you are acquire (i.e. frequency, amplitude, etc.)? What type of analysis are you doing? Why Visual Basic and not LabVIEW where we have a lot of pre-built functions for analysis? The more you elaborate the easier for me to help you.

I will wait for your answers.

[saihah]

Apologies for the rather late reply. The instrument i am using is the NI-DAQ 6023E. The characteristics of the signal i need to acquire will be a ECG waveform. I need to analyse certain points of the waveforms. As i need to do this analysis and upload it to show the doctor, therefore i wonder if i can use visual basic.

Basically what i need is to create something like an application online to analyse ECG waveforms then to upload it into the website for doctor viewing purposes.

Message Edited by saihah on 07-20-2008 08:34 PM

Message Edited by saihah on 07-20-2008 08:35 PM

[hoffiz]

Hi Saihah,

If that is the card you are going to be using the yes, creating the analysis will easy or difficult as how many tools you have available, you can either built the functions yourself from scratch or use the NI measurement Studio VB .NET.  I’m not an expert on ECG, but since the waveform is suppose to represent heartbeats I’m guessing that the frequency components are going to be between the bandwidth of the 6023E, 250 K samples per second. NI-DAQmx Examples for Visual Basic 6.0 and Programming NI-DAQ in Microsoft Visual Studio .NET

Let me know if it helps