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INTRODUCTION
IN OFF POSITION
POWER OFF
EXT GEN DISCONNECTED
METER SHUNTED
OFF
IN BETWEEN OFF
AND INT DC POSITIONS
DC BRIDGE OPERATIVE
BUT METER SHUNTED
TO REDUCE SENSITIVITY
1
R;
1
c;;-
1
~-
R
~_1_
R
s
conductance
<..I\M-)
G
series conductance
G
s
impedance, Z
~
R +jX
reactance, the imaginary part of an impedance
admittance, y
~
G
+
jB
the imaginary parr of an admittance
paralIe
I
re sistance
R
p
resistance
<..I\M-)
R
~ ~
1
series resistance R
s - -
G
s
TABLE 1-2
EXT
AC
INT AC
SYMBOLS AND ABBREVIATIONS
~
osc
cap.acitance
.<-1
r-)
ex:;: l~J
osc
LEVEL
C
C s
senes capacitance
C p
parallel capacitance
L
inductance
<-'lmQ\-)
L
s
series inductance
L
p
parallel inductance
BIAS
BIAS
z
X
Y
B
Q
G
G
p
parallel conductance G
p
R
s
R
G
s
cuL
for inductors or inductive resistors
Q
~
__
s_
R~
INT DC
EXT GEN
EXT DC
Figure 1-3. Generator and detector
connections.
LOWEST TWO R RANGES
HIGHEST
5
R RANGES
HIGHEST THREE GRANGES LOWEST 4 GRANGES
GEN
LEV
for capacitors D
R
power factor -VR2
+ X2
frequency
angular frequency
~
21Tf
ohm, a unit of resistance, reactance or impedance
kilohm 1 kD
~
1000 D
megohm 1 MD
~
1,000,000
~D
milliohm 1 mD
~
0.001 D
for capacitive resistors
Q
~
cuCpR p
d'
.
.
f
R
G
1
ISSlpatlOn actor
~X ~
13
~
Q
1
cuCp
Rp
D
kD
MD
mD
D
PF
mho, a unit of conductance, susceptance or admittance
m 0
millimho 1 m 0
~
.0010
f-LO micromho 1 f-LO
1 x 10-
6
0
n 0
nanomho
1 nO
1 x 10- 9 0
f-Lf
microfarad, a unit of capacitance
nf
nanofarad 1 nf
~
0.001 f-L f
~
1 mf-L f
pf
picofarad 1 pf
~
1 x 10
-6
f-L f
~
1 f-Lf-L f
h
henry, a unit of inductance
mh
millihenry 1 mh
~
0.001 h
f-Lh
microhenry 1 f-L h
~
1 x 10 -6 h
f
3
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