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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
78-6 Environmental
photoelectric colorimeter. A light source is directed through a filter (making it monochromatic),
th
en
pa
ssed
th
rough
th
e
sa
mple
ce
ll
an
d
on to th
e
ph
otoelectric
de
tector
. Th
e
ob
vious
ad
vantage
ov
er
th
e
co
mparator
is th
e
el
imination
of th
e
hu
man
fa
ctor
fo
r
id
entifying
va
riations
in co
lor
.
An
other
ad
aptation
is th
e
sp
ectrophotometer,
wh
ich
em
ploys
a di
ffraction
gr
ating
to se
lect
th
e
wa
velength
fo
r
a wi
de
va
riety
of us
es
. It is a ve
ry
ve
rsatile
in
strument
si
nce
bo
th
th
e
in
coming
an
d
ou
tgoing
wa
velengths
ar
e
se
lectable
. Ne
wer
mo
dels
in
corporate
co
mputer
ch
ips
fo
r
au
tomatic
pr
o-
gramming
an
d
da
ta
st
orage
.
Colorimetric tests include single analyte meters for chlorine and DO, and direct readout multianalyte
ph
otometers
fo
r
ma
ny ...
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Publisher Resources

ISBN: 9781439848913