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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
14-6 Sensors and Sensor Technology
e need for shielding at lower frequencies down to dc has led to the use of high-permeability materi-
als (e.g., mu-metal) for shunting magnetic elds external to the experimental region. For biomagnetic
me
asurements,
it ma
y
be ne
cessary
to en
close
no
t
on
ly
th
e
se
nsing
de
vice
bu
t
al
so
th
e
su
bject
in an MS
R
with large interior dimensions (e.g., 4 m × 3 m × 2 m). e use of multiple shields can act to further
shield the interior of an MSR with commercial MSRs oering shielding factors >40 dB at dc, increasing
to 1
00+
d
B
a
bove
1
00
H
z
.
e eective use of magnetic shields can reduce the background magnetic noise to ...
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Publisher Resources

ISBN: 9781439848913