Title:
METHOD FOR MEASURING FLATNESS OF METALLIC SHEET MATERIAL
Document Type and Number:
Japanese Patent JPS5937407
Kind Code:
A
Abstract:
PURPOSE: To measure easily and continuously flatness of a metallic sheet material regardless of its degree, by measuring an image of a thin and linear light source reflected on the metallic sheet with a sensor.
CONSTITUTION: A light source 11 is thin and linear, and is provided parallelly on a surface plate 1, and a sensor 12 is provided to a position shifted from the source 11 on the plate 1. In case of measuring the flatness of the metallic sheet 2, the sheet 2 is placed on the plate 1 under the source 11 and an image 13 of the source 11 reflected on the sheet 2 is measured by the sensor 12. In this case, a continuous measurement is possible by moving the sheet 2.
Inventors:
KAMIYA YOSHIHISA
Application Number:
JP14794682A
Publication Date:
February 29, 1984
Filing Date:
August 26, 1982
Export Citation:
Assignee:
FUJITSU LTD
International Classes:
G01B11/24; G01B11/30; (IPC1-7): G01B11/24
Attorney, Agent or Firm:
Kugoro Tamamushi
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