
19-1
19.1 Introduction
Engineers, scientists, and other technical professionals around the world depend on oscilloscopes as one
of the primary voltage measuring instruments. is is an unusual situation because the oscilloscope
is no
t
th
e
mo
st
ac
curate
vo
ltage
me
asuring
in
strument
us
ually
av
ailable
in th
e
la
b
. It is th
e
gr
aphical
na
ture
of th
e
os
cilloscope
th
at
ma
kes
it so va
lued
as a me
asurement
in
strument—not
it
s
me
asurement
ac
curacy
.
e os
cilloscope
is an in
strument
th
at
pr
esents
a gr
aphical
di
splay
of it
s
in
put
vo
ltage
as a fu
nc-
tion
of ti
me
. It di
splays
vo
ltage
wa
veforms
th
at
ca
nnot
ea
sily
be de
scribed
by nu
merical
me
thods
. Fo
r
ex
ample,