Flatten it out

Measuring the flatness of a cold-rolled steel strip or aluminum foil is a vital aspect of production quality control. Cold lamination control based on the results of this measurement crucially affects production efficiency, but further processes can modify flatness, which can be lost when the strip...

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Bibliographic Details
Published in:IEEE industry applications magazine 2008-03, Vol.14 (2), p.62-66
Main Authors: Lopera, J.M., Villegas, P.J., Linera, F.F., Hernandez-Magadan, F., Martin-Ramos, J., Diaz, J., Vecino, G., Rendueles, J.L.
Format: Magazinearticle
Language:English
Subjects:
Aluminum
Capacitive sensors
Cold rolling
Flatness
Flattening
Foils
Lamination
Loss measurement
Monitoring
Monitors
Personal computers
Production lines
Production systems
Quality control
Sensor arrays
Steel
Strips
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Summary:Measuring the flatness of a cold-rolled steel strip or aluminum foil is a vital aspect of production quality control. Cold lamination control based on the results of this measurement crucially affects production efficiency, but further processes can modify flatness, which can be lost when the strip becomes cold. We describe a low-cost flatness measurement system to monitor this property at several production line points. The system is composed of a capacitive sensor array, some microcontrollers, and a PC for computing and visualization. Measurements on a production line are provided and analyzed.
ISSN:1077-2618
1558-0598
DOI:10.1109/MIA.2007.914279