Skip to Main Content
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
75-1
75.1 Introduction
Previous research showed that the dielectric properties of hygroscopic materials can be used to esti-
mate
th
e
MC pr
esent
in th
ese
ma
terials
(Ne
lson,
19
77;
Kl
ein,
19
81)
. e va
riation
in di
electric
co
n-
stant with MC for shelled yellow eld corn (Figure 75.1) was found to be more pronounced between
1
and
5 MH
z
(Ne
lson,
19
78)
. u
s,
(ε
r1
ε
r2
), the dierence in the dielectric constants at 1 and 5 MHz
or any other higher frequency, should be a good indicator of the moisture present in the material. e
di
erence
in ca
pacitance
of a pa
rallel-plate
sy
stem
of pl
ate
ar
ea
A an
d
se
paration
d at tw
o
fr
equencies
can be written as
C
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Instrumentation and Control Systems, 3rd Edition

Instrumentation and Control Systems, 3rd Edition

William Bolton

Publisher Resources

ISBN: 9781439848913