Hioki 3522-50, Инструкция по эксплуатации

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7.2 Testing Parameters and Calculation Equations
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Z
Real part
Imaginary part
R
jX
Z
I
V
θ
Z : impedance (
Ω
)
θ
: phase angle (degrees)
R : resistance (
Ω
)
X : reactance (
Ω
)
| Z | : absolute value of impedance (
Ω
)
Real part
Imaginary part
jB
G
Y
φ
Y : admittance (S)
G : conductance (S)
B : susceptance (S)
| Y |: absolute value of admittance (S)
7.2 Testing Parameters and Calculation Equations
Normal circuit elements etc. are assessed with regard to their characteristics
in terms of their impedance
Z . The 3522-50 for subjects such circuit
components to an alternating current signal at a certain test frequency,
measures their voltage and current vectors, and from these values obtains the
impedance
Z and the phase angle
θ
. It is then possible to obtain the
following quantities from the impedance Z by displaying it upon the
complex plane.
Z = R + j X
θ
= tan
-1
( X / R )
Moreover, it is possible to use the admittance Y , which as a characteristic of
a circuit component is the reciprocal of the impedance Z .
By displaying the admittance Y upon the complex plane (just as was done
for the impedance Z ) the following quantities can be obtained:
Y = G + j B
φ
= tan
-1
( B / G )