Raytech CAPO 2.5 - Conversion Capacitances to Inductances

Preliminary
6.2.4 Conversion capacitances to inductances
1
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
2
).
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 ωCs
+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