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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
22-1
In this chapter, the concept of electric power is rst introduced, and then the most popular power mea-
surement
m
ethods
a
nd
i
nstruments
i
n
d
c,
a
c,
a
nd
p
ulse
w
aveform
c
ircuits
a
re
i
llustrated
.
Po
wer
is de
ned
as th
e
wo
rk performed per unit time
. So
,
di
mensionally,
it is ex
pressed
as jou
les
pe
r
se
cond,
J s
−1
. According to this general denition, electric power is the electric work or energy dissipated
pe
r
u
nit
t
ime,
a
nd
d
imensionally,
i
t
y
ields
Js JC Cs V A
1 1 1
= × = ×
(22.1)
where
J
= J
oules
s
= s
econds
C
= C
oulombs
V
= v
olts
A
= a
mperes
e
p
roduct
v
oltage times current
g
ives
a
n
e
lectric
q
uantity
e
quivalent
to p
ower
.
22.1 Power Measurements ...
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Publisher Resources

ISBN: 9781439848913