The System is engineered to evaluate flatness defects on a metal and non metal strip, plate or flat product
It is made up by:
Solid built structure to support and move sensors, entirely motorized and controlled in position.
Control and Maintenance Panel
generate views of physical and thermal gradients
calculate operational parameters such as deviation from center, overall width, camber, hook, etc.
alarm in case of excessive conditions, such as excessive hook
As defect, in general terms, is considered a variation of the strip flatness or in other terms a variation of the
distance between the strip and the reference surface. Naturally variation can be positive or negative. This
variation in commonly called wave. The determination of the wave shape is made considering both
distance and position evaluated respectively using lasers (mounted on the structure along X Axis) and the
encoders (mounted on the structure along Y Axis).
When the wave shape is defined, the system provides the entity and the classification of the defect using
Defect Position: the strip is virtually divided into 5 areas (left border, left quarter, center, right quarter, right
border). The defect is associated to one of this area
Laser flatness measurement system
Defect Height (H) : difference between max and min measured values. During scan is possible that more
than one maximum or minimum is encountered. In this case values are taken in couple of two.
Defect Wave Length :(L): distance between the two minimum values corresponding to the maximum.
Percentage Wave Index: (IO)
I Unit (IU) : 24,67*sqr(IO)
Available on Protocol (PROFIBUS / PROFINET / ETHERNET)
WAVE INDEX (IO)
UNIT INDEX (IU)
DEFECT LONGITUDINAL WAVE-LENGTH (L)
DEFECT HEIGHT (H)
DEFECT POSITION (ONLY FOR LONGITUDINAL)
One of the most efficient solution for surface defect analysis
LGE Engineering srl
Piazza della Vittoria 14/24
P.IVA 03615560103 Codice SDI: M5UXCR1