Preliminary
6.2.4 Conversion capacitances to inductances
The CAPO is able to measure the inductance. With the formulas below you can make the
conversion.
If the CAPO detect an inductance instead of a capacitance, Cxp will switch to Lx (the tan δ /PF will
switch to Quality factor
).
where:
L
Inductances [H]
C
Capacitance [F]
R
Resistance
ω
angular frequency [s
-1
] ω=2*
π
*f
Q
Quality factor
tan δ
C
Dissipation factor
1
It is necessary to distinguish between serial and parallel (Lp, Ls and Cp, Cs)
2
The quality factor (or Q) of an inductor is the ratio of its inductive reactance to its resistance at a given frequency.
90315-1.2 Instruction Manual CAPO
Page 32 of 117
Z
=
1
j
ω
Cs
+
Rs
=
j
ω
Ls
+
Rs
Rs
=
Rs
1
j
ω∗
Cs
=
j
ω
Ls
⇒
1
= −ω
2
Ls Cs
L
= −
1
ω
2
∗
C
Q
=
1
tan
δ
C