Appx.
6
Effects of Current Density
Current
source
Current
source
Figure 1: A plot of the equipotential lines on a metal plate, showing the
current distribution at 50
μ
V intervals when a 1 A current is applied at
the endpoints of the plate (W300 × L370 × t0.4)
As shown in Figure 2, it is preferable to locate the SENSE terminals within the
plate's W or t value of the SOURCE terminals:
SOURCE
SOURCE
SENSE
SENSE
Should be greater
RUHTXDOWR:RUW
Should be greater
RUHTXDOWR:RUW
W
t
Figure 2: Probing locations when the measurement target is wide or thick
IMPORTANT
Keeping track of changes over time is important to determine if a
battery has deteriorated. Hence, use the same test leads when
measuring.
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