BK Precision 880 - Measurement Formulas; Measurement Formula Explanations

63
Equivalent Series Resistance
Accuracy of equivalent series resistance is calculated according to the below formula:
Rse =
X
x
: Actual impedance,
or
φe is the phase angle accuracy,
180



ee
Notice: The accuracies of ESR and Rs are same.
Equivalent Parallel Resistance
Accuracy of equivalent series resistance is calculated according to the below formula:
Rpe =
ex
epx
D
R





Rpx is the measurement value of Rp, Dx is the dissipation value.
ex
X  
xx
fLX  2
x
x
fC
X

2
1
