Motech MT 4080 - Page 13

11
Z Accuracy:
As shown in table 1.
C Accuracy:
Cxf
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
10100102
1
2
1
93
π
π
Cxf
Zx
Refer to the accuracy table, get C
Ae
=±0.2%