design of multimeter (ADC) using Labview

[elavarasan]

I want design the analog to digital converter multimeter by using Labview.Anyone of you help me

[LabViewGuruWannabe]

What version of LabVIEW are you using? What hardware are you using (DAQ board) to input your analog signal?

Take a look at the examples for Hardware Input and Output, or possibly examples that come with your I/O board.

If you can tell us more about what you have, that will help us help you.

B-)

[Ray.R]

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@LabViewGuruWannabe wrote:
Take a look at the examples for Hardware Input and Output, or possibly examples that come with your I/O board.

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Very good starting point.  Look at code examples.  You can search them from the Labview's Help Menu, under "Find Examples"

[hoffiz]

Hi Elavarasan

Like the other post already asked there is more information needed to better assist you, Labview version? DAQ card you are using? A multimeter is in essence an analog to digital converter, so what I understand is that you have a DAQ card or are planning on buying one and you want to use it as a multimeter.  In the case you are planning on buying one I will suggest taking a look at this products: Digital Multimeters (DMMs) and LCR Meters.

In the case you already have one DAQ card and you are trying to emulate a multimeter with the card I will strongly recommend reading: Digital Multimeter Measurement Tutorial because there are some specification like resolution, accuracy on others that we need to know to help you build a multimeter.

But let say you want to design a simple multimeter, I would recommend taking a look at our examples, go to labview and click on help>>Find Examples and browse for: hardware input and output>>DAQmx>>Analog Measurement, here you will find examples to read voltage, current and resistance and of our best resources is: Getting Started with NI-DAQmx: Main Page.

I hope it helps

Message Edited by Jaime F on 11-01-2007 05:42 PM