04-30-2019 01:59 PM
I've been looking at a lot of PXI and C Series accuracy specs, which usually give either an absolute figure at full range or a percentage gain/offset.
The specs for the 5741 (http://www.ni.com/pdf/manuals/373937b.pdf) are written very differently, and include other components (like DNL) that don't appear in the other specs I have seen. How can I calculate the absolute accuracy at full scale?
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05-01-2019 04:21 AM
Hey Johndigsby85,
Have you checked out any of the documents on how to calculate absolute accuracy? They should be a great starting point
Calculating Absolute Accuracy or System Accuracy
Calculate Absolute Accuracy of Dynamic Signal Acquisition Devices
Should The Absolute Accuracy Of A Measurement See A Constant or Dynamic Offset?
If the spec has the INL named, this can be treated as a worst case DNL offset, and you don't need to worry about DNL for absolute accuracy calculations. (see Differential Non-Linearity (DNL) )
Hope this helps,
Rebecca