Measurement Tutorial
3
Considering the internal resistance and external lead
resistance total is 0.0125 ohm. If applying a 1 A DC current,
an error of (0.0125 ohm x 1 A) 0.0125 V or 12.5 mV will
occur. This error will be relative by range with the ADC
dynamic range of 1.2 V.
Figure 3-4 Example of measuring voltage and current in dual measure-
ment
The error in measurement will be significant when applying a higher
current.
34450A Users Guide
83
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