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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
51-6 Optical
To reduce any possible heating of the sample due to absorption, the beam is then passed through a
ne
utral
de
nsity
l
ter,
wh
ich
at
tenuates
th
e
be
am
fu
rther
to a le
vel
of 50
–100
μW. e ne
xt
it
em
in th
e
be
am
li
ne
de
pends
on th
e
de
tection
sc
heme
. Fo
r
ac op
eration,
a li
ght
ch
opper
is in
serted
in
to
th
e
be
am
li
ne,
wh
ile
fo
r
dc de
tection,
no
thing
el
se
is re
quired
be
fore
th
e
sa
mple
. An ou
tput
fr
om
th
e
ch
opper
is
us
ed
fo
r
sy
nchronous
de
tection
. e sa
mple
ch
amber
th
en
fo
llows
. i
s
ch
amber
re
quires
an in
put
an
d
an ou
tput
po
rt
an
d
a de
sign
th
at
pr
ecludes
in
terference
of an
y
be
am
wi
th
ot
her
re
ected
be
ams
. Ot
her
de
sign
de
tails
ar
e
de
termined
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Publisher Resources

ISBN: 9781439848913