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The operating principle of the SCANEX system is
based on the contact free measurement and monitoring of kiln shell temperatures
by an infrared (IR) scanner. This scanner transforms the signals from which
temperatures on the kiln shell are calculated. The measured temperatures are
collected with the aid of microprocessors, conditioned and shown graphically as
temperature curve and temperature image on a colour monitor.
The kiln length monitored by each sensor depends on
the distance between sensor head and kiln shell on the measuring angle of the
scanner. The high geometric resolution power enables diagnosis of the thermal
effects of brick failures in the kiln lining. Typical average dimensions of each
individual scanned spot are 20x20 sq.cm at a scanner distance of 22m and a kiln
length of 65 meters.
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