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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
80-11Humidity and Moisture Measurement
80.2.9 Measurement of Thermal Conductivity
e thermal conductivity of a material is related to the amount of water it contains. Heat pulses are sup-
plied
by a ne
edle
pr
obe,
an
d
th
e
co
oling
of th
e
ne
edle
a
er
en
ding
th
e
pu
lse
is me
asured
. It is a sim
ple
an
d
i
nexpensive
m
ethod
t
hat
n
eeds
c
alibration
f
or
t
he
m
aterial
i
n
w
hich
i
t
i
s
g
oing
to b
e
u
sed
.
80.2.10 Water Activity or Equilibrium Relative Humidity
A material enclosed in a measuring chamber is, aer some time, in equilibrium with its environment.
e mo
isture
co
ntent
of th
e
ma
terial
ca
n
be de
rived
fr
om
th
e
so
-called
ad
sorption
is
otherms
fo
r
th
at
sp
e- ...
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Publisher Resources

ISBN: 9781439848913