Detection of weld line and gap width based on analysis of intensity distribution of scattered laser slit light - study on visual sensing system for in-process control of arc welding process (2nd report)

被引：0

作者：

Nakata, Shuji ^{[1
]}

Jie, Huang ^{[1
]}

Tsuruha, Yasuo ^{[1
]}

Kobashiri, Toshio ^{[1
]}

Makino, Yoshinobu ^{[1
]}

机构：

[1] Osaka Univ, Japan

来源：

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society | 1989年 / 7卷 / 01期

关键词：

Inspection--Laser Applications - Light--Scattering;

D O I：

10.2207/qjjws.7.82

中图分类号：

学科分类号：

摘要：

Detection of groove information such as gap center-weld line and gap width of groove by projecting vibrating laser slit-like light is shown based on the analysis of intensity distribution of laser slit-like light reflected or scattered from the surface of two kinds of steel sheets, each involved gap width (0.1-1.0 mm) with I shape groove. Intensity distributions of laser spot light and laser slit-like reflected light vary in space or time, but the intensity variation decrease nearly 50% by vibrating laser slit-like light. In addition, the intensity variation of laser light is influenced by the surface property of the object. Detection of gap center - weld line and gap width of I shape groove of specimen is based on sharp reduction of intensity of reflected light at root gap.

引用

页码：82 / 88