SURFACE INSPECTING DEVICE

PURPOSE:To prevent incorrect detection due to the scattered light on a steel plate surface in a steel plate surface inspecting device. CONSTITUTION:A surface inspecting device achieves the optical scanning in the transverse direction of the surface of a strip-shaped object to be inspected 1 travelin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YOSHIHARA ATSUSHI, NAWATA YASUTAKA
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	PURPOSE:To prevent incorrect detection due to the scattered light on a steel plate surface in a steel plate surface inspecting device. CONSTITUTION:A surface inspecting device achieves the optical scanning in the transverse direction of the surface of a strip-shaped object to be inspected 1 traveling in the line. A photoelectric converter 3 to receive the components of the regularly reflected light part among the reflected light and a plurality of photoelectric converters 4, 5 to receive the components of the irregularly reflected light part are provided, and the signal for the defective part is emphasized by subtracting the signal outputted by the irregular reflection photoelectric converters 4, 5 from the signal outputted by the regular reflection photoelectric converter 3.