15
Accuracy applies when
1
<
⋅
De
Qx
Example:
Test Condition:
Frequency
:
1KHz
Level :
1Vrms
Speed :
Slow
DUT :
1mH
Then
Ω
=
⋅
⋅
⋅
=
⋅
⋅
⋅
=
−
283
.
6
10
10
2
2
3
3
π
π
Lx
f
Zx
Refer to the accuracy table, get
L
Ae
=±0.5%,
005
.
0
100
±
=
⋅
±
=
Ae
De
If measured Qx = 20
Then
1
.
0
1
2
1
2
m
m
±
=
⋅
⋅
±
=
De
Qx
De
Qx
Q
Ae
θ
Accuracy:
100
Ae
π
180
e
⋅
=
θ
