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◆ Overall Impedance Measurement Theory
The simplified model of the 6630 impedance measurement, Vs is the test signal
voltage and RO is source resistance. If the current across the DUT is I when a
test signal voltage V is applied, the DUT's impedance, Z, is expressed by Z =
.
Impedance, Z, contains real and imaginary parts. The figure shows vector repre-
sentation of impedance as follow.
R: Resistance
X: Reactance
|Z|: Impedance
θ: Phase Angle
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