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Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition
book

Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition

by John G. Webster, Halit Eren
February 2014
Intermediate to advanced content levelIntermediate to advanced
1921 pages
82h 13m
English
CRC Press
Content preview from Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition
30-6 Electrical Variables
whose equivalent circuit is denoted (L, LF, PMC) in Figure 30.2. e measured values of the equiva-
lent
cu
rrent-dependent
se
lf-inductance
an
d
th
e
eq
uivalent
re
sistance
ar
e
de
noted
L(i(t)) an
d
R
L
(i(t)),
re
spectively
. Ste
ady-state
L(i) va
lues
ca
n
be de
termined
fr
om
th
e
re
lation
L(i) ≈ Φ(i)/i by me
asuring
th
e
ma
gnetizing
cu
rve
Φ(i). A sh
ape
of th
is
cu
rve
de
pends
no
t
on
ly
on th
e
am
plitude
of th
e
cu
rrent
i(t)
bu
t
al
so
on it
s
fr
equency
ω. e va
lue
of th
e
re
sistance
R
L
(i(t)) also depends on the current amplitude
an
d
fr
equency
. Wh
ere
a dc co
mponent
of th
e
cu
rrent
in th
e
in
ductive
el
ement
(b
ias
cu
rrent)
is ap
plied,
th
e
in
duct ...
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Publisher Resources

ISBN: 9781439848913