发明名称 |
FOLLOW-UP DEVICE FOR DETECTING FLAW OF PIPE AND AUTOMATIC FLAW DETECTION APPARATUS OF PIPE EMPLOYING IT |
摘要 |
A tracking device is provided with a non-contact type displacement gauge, a positioner which moves a flaw detecting sensor within a plane perpendicular to an axial direction of a pipe or tube, and a positioning controller which controls the positioner. The positioning controller predicts a time until a portion of the pipe or tube whose displacement is measured by the displacement gauge reaches a predetermined position on a straight line extending in a Z-axis direction through a rotational center of the pipe or tube on the basis of the positional relationship between the displacement gauge and the flaw detecting sensor and a rotational speed of the pipe or tube; controls the positioner on the basis of the displacement measured by the displacement gauge and an operational delay time of the positioner in such a manner that the relative position of the flaw detecting sensor to the pipe or tube after the lapse of the predicted time becomes substantially constant in the Z-axis direction; and moves the flaw detecting sensor along the Z-axis direction. The positioning controller performs the same control in an X-axis direction. |
申请公布号 |
EP2088427(A4) |
申请公布日期 |
2017.03.22 |
申请号 |
EP20070830624 |
申请日期 |
2007.10.26 |
申请人 |
Nippon Steel & Sumitomo Metal Corporation |
发明人 |
KUBOTA, Hiroshi;NAKAO, Yoshiyuki;IKEDA, Masami;MORI, Nobuyuki;SATO, Hiroshi |
分类号 |
G01N29/06;G01N29/04;G01N29/22;G01N29/265 |
主分类号 |
G01N29/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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