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Fundamentals of Sensors for Engineering and Science
book

Fundamentals of Sensors for Engineering and Science

by Patrick F. Dunn
April 2011
Intermediate to advanced content levelIntermediate to advanced
110 pages
3h 23m
English
CRC Press
Content preview from Fundamentals of Sensors for Engineering and Science
28 Fundamentals of Sensors for Engineering and Science
the sensor resistance, h
sf
is the convective heat transfer coefficient for the
sensor and the fluid, A
s
is the surface area of the sensor over which heat
is transferred to the fluid, T
s
is the sensor temperature, and T
f
is the fluid
temperature.
The potential difference across the sensor is related to the output voltage
of the bridge circuit, E
o
, by
E
s
= E
o
R
s
/(R
s
+ R
o
), (2.5)
where R
o
denotes the resistance that is in series with R
s
in the bridge. The
heat transfer coefficient for a small wire or rod is
h
sf
= C
0
+ C
1
p
ρU, (2.6)
in which C
0
and C
1
are constants that depend upon the ambient tempera-
ture, ρ the density
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Publisher Resources

ISBN: 9781439895252