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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
47-6 Optical
shall be backed by a black diusing material having a reection density not less than 1.5. is procedure
is specied to improve reproducibility, especially for thin samples.
It wi
ll
be ob
vious
th
at
a re
ection
de
nsitometer
ca
nnot
be “ze
roed”
by ta
king
a re
ading
wi
th
no
sa
mple
in pl
ace
. In
stead,
as pr
escribed
by th
e
st
andard
[1
d],
ca
libration
sa
mples
th
at
ha
ve
be
en
me
a-
sured
on ot
her
pr
imary
in
struments
ar
e
us
ed
bo
th
to ze
ro
an
d
sl
ope
th
e
de
nsitometer
. Fo
rmerly,
co
atings
of Mg
O
2
or BaSO
4
were used as reference “whites,” but these layers are dicult to use. An
ASTM standard [10] discusses the preparation of reference whites from pre ...
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Publisher Resources

ISBN: 9781439848913