East Tester ET3501, Operating Instructions Manual

Page: 107 / 111

ET35 Series Digital Bridges（LCR）Operating Instructions
Hangzhou Zhongchuang Electron Co., Ltd. 104
flow through the two terminals. The conductance and resistance are reciprocal. The
former measures the degree of ease for the current to flow through the two terminals.
Resistance Conductance
Series resistance Rs Parallel conductance Gp
（
=1/Rp
）
Parallel resistance Rp
Formula
C
j
Zs L j Zs
jX Zs
G I
V
R


   
   
1
L
j
Yp C j Yp
jB Yp
R V
I
Gp


   
   
1
) ( | | 2 2 X R Zs
 
) (
| |
2 2
B G
GB
Ys


) (
| |
2 2
X R
RX
Zp


) ( | | 2 2 B G Yp  
 cos | | Z Rs   cos | | Y Gp 
Formula to calculate the capacitance (C)
Capacitance measures the number of electronic charges stored between the two
terminals.
Series capacitance Cs Parallel capacitance Cp
C
j
R Zs

  C j G Yp

 
CsRs
Q

1
 CpRp Q


CsRs D 

Cp
Gp
D


Formula to calculate the reactance (X) and susceptance (B=1/X)
Reactance indicates the size of the imaginary component of the impedance (Z)
caused by capacitance and inductance. Susceptance and reactance are reciprocal. The
value of susceptance equals to the imaginary component of admittance (Y). The
admittance and the impedance are reciprocal.
Series reactanceXs Parallel susceptance Bp
 sin | |
1
Z
B
X  
 sin | |
1
Y
X
B  