ONLINE TOMOGRAPHIC GAUGING OF SHEET METAL

The present invention relates to a computer tomography system which measures the thickness and edge position of hot-rolled steel. X-rays produced by two X-ray sources are directed, through the sample being measured, to a plurality of radiation detectors. The radiation detectors measure the attenuati...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ELLINGER, HUNTER, HOFFMAN, CARVEL, D, SAVAGE, RICHARD, D, STEPHENS, THOMAS, W, ROMBERGER, CHARLES, J
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:The present invention relates to a computer tomography system which measures the thickness and edge position of hot-rolled steel. X-rays produced by two X-ray sources are directed, through the sample being measured, to a plurality of radiation detectors. The radiation detectors measure the attenuation of the X-rays caused by the sample. The attenuation levels sensed by each detector are correlated with each detector's physical location. This information is collected as each X-ray source illuminates the radiation detectors. The collected information is triangulated or averaged, as necessary, to determine the dimensions and position of the measured sample.