Remote temperature measurements
have to be linked by some
sort of cable to the relevant test
instrument. Normally, this is a
three-core cable: one core for
the signal and the other two for
the supply lines. If the link is
required to be a two-core cable,
one of the supply lines and the
signal line have to be combined.
This is possible with, for
instance, temperature sensors
LM334 and LM335. However,
these devices provide an output
that is directly proportional to
absolute temperature and this is
not always a practical proposition.
Downloading of this magazine article is reserved for registered users only.
Discussion (0 comments)