B&K Precision 886 - Manual - Manual (Page 14)

11
Z Accuracy:
As shown in table 1.
C Accuracy:
Cx f
Zx
⋅ ⋅ ⋅
=
π
2
1
C
Ae
= Ae of |Zx|
f : Test Frequency (Hz)
Cx : Measured Capacitance Value (F)
|Zx| : Measured Impedance Value (Ω)
Accuracy applies when Dx (measured D value) ≦ 0.1
When Dx > 0.1, multiply C
Ae
by
2
1 Dx
+
Example:
Test Condition:
Frequency : 1KHz
Level : 1Vrms
Speed : Slow
DUT : 100nF
Then
Ω =
⋅ ⋅ ⋅ ⋅
=
⋅ ⋅ ⋅
=
−
1590
10 100 10 2
1
2
1
9 3
π
π
Cx f
Zx
Refer to the accuracy table, get C
Ae
=±0.2%