-25-
Fiber Optic
Cable
A flexible cable usually made from quartz that transmits light from one point
to another. In optical thermometry, optical cables are used to transmit light
from the lightpipe or lens back to the electronics. Optical cables can lose
much of the signal coming from the sensor and are sensitive to errors due to
bending and micro-cracking. Errors can also occur at the connection ends of
the cables. BASF’s compact probe is small enough to be placed directly
behind the collection optics in most applications, thus eliminating the need for
these cables. BASF does manufacture high-performance flexible fiber optic
cables for measurement applications where cables are needed.
Freeze Point
Furnaces
Carefully designed furnaces that hold a double walled, closed bottom graphite
cylinder filled with ultra pure metal. The pure metal freezes at exactly the
same temperature every time anywhere in the world. BASF uses five different
freeze points to check and calibrate its instruments: Tin at 231.93°C, Zinc at
419.53°C, Aluminum at 660.32°C, Silver at 961.78°C and Copper at
1084.61°C (also see
Accuracy
and
Repeatability
)
.
Interface
Module
The small box that connects the probe head to the power supply and the user’s
PC or host computer. Both single and multi channel versions are available.
See section 2.3.
