Method and apparatus for measuring cross sectional dimensions of

Details Method and apparatus for measuring cross sectional dimensions of Method and apparatus for measuring cross sectional dimensions of

1996-03-29

1998-04-28

Pham, Hoa Q.

Optics: measuring and testing

By polarized light examination

With light attenuation

356372, 356387, G01B 1114

Patent

active

057452377

ABSTRACT:
Cross sectional dimensions of an intermediate product of sectional steel are measured in the course of rolling, by simultaneously, horizontally reciprocating, in the direction transverse to a conveyance line of the sectional steel, two laser range finders which are disposed vertically opposite to each other. The method and apparatus are capable of determining, precisely and automatically, a sectional shape of the H-beam in an on-line manner, thereby improving product quality and yield.

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