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1. 发明授权

US08143885B2 Surface flaw detection and verification on metal bars by Eddy current testing and imaging system 有权
标题翻译：通过涡流测试和成像系统对金属棒进行表面缺陷检测和验证
公开(公告)号：US08143885B2
公开(公告)日：2012-03-27
申请号：US12606568
申请日：2009-10-27
申请人： Tzyy-Shuh Chang , Hsun-Hau Huang , Kazuomi Tomita , Ryuichi Seki
发明人： Tzyy-Shuh Chang , Hsun-Hau Huang , Kazuomi Tomita , Ryuichi Seki
IPC分类号： G01N27/82 , G01N27/90 , G06K9/00
CPC分类号： G01N27/9006 , G01N27/9026
摘要： An inspection system for detecting flaws on a moving metal (e.g., steel) bar coordinates the operation of an eddy current testing (ECT)-based flaw detection apparatus and an imaging-based flaw detection apparatus. The ECT-based flaw detection apparatus and the imaging-based flaw detection apparatus are disposed along a movement path in a predetermined relationship with each other, for example, as a predetermined fixed offset distance therebetween. A synchronizing mechanism synchronizes the output data streams from the two flaw detection apparatuses based on the predetermined relationship, so as to align the data streams as function of the axial position on the metal bar. A processing unit is configured to process the synchronized data streams for the detection of flaws, which are then also synchronized (axial position). The synchronization permits a variety of cross-referencing operations, such a flaw verification as to the existence of flaws, as well augmenting imaging-based flaws with flaw depth information from the ECT-based apparatus.
摘要翻译：用于检测移动金属（例如钢）棒上的缺陷的检查系统协调基于涡流检测（ECT）的探伤装置和基于成像的探伤装置的操作。基于ECT的探伤装置和基于成像的探伤装置沿着运动路径彼此以预定的关系设置，例如，作为它们之间的预定的固定偏移距离。同步机构基于预定关系使来自两个探伤装置的输出数据流同步，以便在金属棒上作为轴向位置的函数对准数据流。处理单元被配置为处理用于检测缺陷的同步数据流，其然后也被同步（轴向位置）。同步允许进行各种交叉参考操作，这样的缺陷验证有缺陷的存在，以及基于来自基于ECT的设备的具有缺陷深度信息的基于成像的缺陷。

2. 发明申请

US20100109659A1 SURFACE FLAW DETECTION AND VERIFICATION ON METAL BARS 有权
标题翻译：金属棒表面检测和验证
公开(公告)号：US20100109659A1
公开(公告)日：2010-05-06
申请号：US12606568
申请日：2009-10-27
申请人： Tzyy-Shuh Chang , Hsun-Hau Huang , Kazuomi Tomita , Ryuichi Seki
发明人： Tzyy-Shuh Chang , Hsun-Hau Huang , Kazuomi Tomita , Ryuichi Seki
IPC分类号： G01N27/82
CPC分类号： G01N27/9006 , G01N27/9026
摘要： An inspection system for detecting flaws on a moving metal (e.g., steel) bar coordinates the operation of an eddy current testing (ECT)-based flaw detection apparatus and an imaging-based flaw detection apparatus. The ECT-based flaw detection apparatus and the imaging-based flaw detection apparatus are disposed along a movement path in a predetermined relationship with each other, for example, as a predetermined fixed offset distance therebetween. A synchronizing mechanism synchronizes the output data streams from the two flaw detection apparatuses based on the predetermined relationship, so as to align the data streams as function of the axial position on the metal bar. A processing unit is configured to process the synchronized data streams for the detection of flaws, which are then also synchronized (axial position). The synchronization permits a variety of cross-referencing operations, such a flaw verification as to the existence of flaws, as well augmenting imaging-based flaws with flaw depth information from the ECT-based apparatus.
摘要翻译：用于检测移动金属（例如钢）棒上的缺陷的检查系统协调基于涡流检测（ECT）的探伤装置和基于成像的探伤装置的操作。基于ECT的探伤装置和基于成像的探伤装置沿着运动路径彼此以预定的关系设置，例如，作为它们之间的预定的固定偏移距离。同步机构基于预定关系使来自两个探伤装置的输出数据流同步，以便在金属棒上作为轴向位置的函数对准数据流。处理单元被配置为处理用于检测缺陷的同步数据流，其然后也被同步（轴向位置）。同步允许进行各种交叉参考操作，这样的缺陷验证有缺陷的存在，以及基于来自基于ECT的设备的具有缺陷深度信息的基于成像的缺陷。

3. 发明授权

US06850056B2 Flaw detection device for steel bar 失效
标题翻译：钢筋探伤装置
公开(公告)号：US06850056B2
公开(公告)日：2005-02-01
申请号：US10363174
申请日：2001-09-05
申请人： Keisuke Fujisaki , Kazuomi Tomita
发明人： Keisuke Fujisaki , Kazuomi Tomita
IPC分类号： G01N27/90 , G01N27/82
CPC分类号： G01N27/9026
摘要： A flaw detection device for a steel bar enabling inspection of a high temperature steel bar at a high temperature.A pre-treatment unit 31, detection unit 32, and post-treatment unit 33 are arranged along a running direction of a steel bar 10. The pre-treatment unit and post-treatment unit have the same structure. Direct current coils 312 and 332 are wound around the outside of the sleeves 311 and 331. The steel bar is magnetically saturated by the direct current magnetic field. An eddy current is generated at the surface of the steel bar by an alternating current coil 321 of a detection unit 12. The change in the magnetic field caused by the eddy current is detected by the detection windings 322 and 323. The sleeves are made of nonmagnetic materials, so the strength of the direct current magnetic field becomes flat along the running axis of the steel bar. Even when moving the steel bar at a high speed, the occurrence of noise due to changes in strength of the direct current magnetic field is suppressed.
摘要翻译：一种用于钢棒的探伤装置，其能够高温地检查高温钢棒。预处理单元31，检测单元32和后处理单元33沿着钢筋10的行进方向布置。预处理单元和后处理单元具有相同的结构。直流线圈312和332缠绕在套筒311和331的外侧。钢筋被直流磁场磁饱和。通过检测单元12的交流线圈321在钢棒的表面产生涡流。由涡流引起的磁场变化由检测绕组322和323检测。套管由非磁性材料，直流磁场的强度沿着钢筋的运行轴线变得平坦。即使高速移动钢筋，也能够抑制由于直流磁场的强度变化引起的噪声的发生。

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