USB-6003 how to measure analog input voltage with a high resolution say 3 or 4 digits after the Decimal point.

[Nhayan]

I have a USB-6003. I would like to measure the analog input voltage with high resolution. When I use the test panels on NI MAX the resolution is not enough for my application. The resolution I need is 3 or 4 digits after the decimal point. Say for 1 V ,  I Need to read  1.0000V. Do I need to use another software to do this,

[santo_13]

As the name suggests "Test Panels" are used to do a quick test of the Hardware. You can use the DAQmx drivers in the programming language of choice to get floating-point measurement (currently there is support for LabVIEW, MATLAB, Python, .NET, C DLL, CVI/LabWindows).

If you're looking for a non-programming approach, please look into FlexLogger and DAQExpress.

[Henrik_Volkers]

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@Nhayan wrote:

I have a USB-6003. I would like to measure the analog input voltage with high resolution. When I use the test panels on NI MAX the resolution is not enough for my application. The resolution I need is 3 or 4 digits after the decimal point. Say for 1 V ,  I Need to read  1.0000V. Do I need to use another software to do this,

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No, but maybe you need another hardware 😜

Just have a look at the specifications

https://www.ni.com/docs/en-US/bundle/usb-6003-specs/resource/374372a.pdf

You can take a lot of measurements say at 10kSPS and look at the mean of 10000 samples. That result is only limited by resolution of your numeric representation and your indicator....   and is useless 😄 

Well, in most cases ... don't mix up resolution and accuracy!