| 摘要 |
PROBLEM TO BE SOLVED: To provide an edge position measuring method of a long material and a shape measuring method using the same, and an edge position measuring device and a shape measuring device using the same all of which are good in work efficiency. SOLUTION: The edge position measuring device 1 to which the edge position measuring method according to the present invention is applied comprises a position detecting device 11 which can optically detect the position of a predetermined site of an object to be measured by receiving voluntary light or reflected light from the object to be measured, and a reference member 12 positioned within a detectable region of the position detecting device 11 and juxtaposed to a long material S along the width direction of the long material S. The position detecting device 11 detects the position of a predetermined site of the reference member 12 and detects the edge position in the width direction of the long material S, and operates the distance between the detected position of the predetermined site of the reference member 12 and the detected edge position of the long material S in the width direction, thereby measuring the edge position of the long material S in the width direction. COPYRIGHT: (C)2004,JPO
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