14 research outputs found

    大型ヘリカル装置のIC聾アンテナと加熱特性

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    Ion-cyclotron heating was applied to the Large Helical Device by using single, trap loop antennas located at the outward side of the toroid. Good experimental results were obtaine with adequate plasma confining configurations and antenna conditionings.Loading resistance of the antenna was2-8Ohm and this was a sufficiently large value. Various heating characteristics were investigated by changing the heating modes, ion species and magneticfield configurations.The minoriy-ion heating mode resulted in the best heating performances,and the heatin gcharacteristics largely depended on the cyclotron resonance positions.There were some unique features due to the heliotron configuration.These results showed the effectiveness of the ICRF heating in a helical device and the appropriateness of the ICRF antenna design in the LHD

    小型工件表面缺陷的评估方法以及检测不合格工件的流程

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    本发明公开了一种小型工件表面缺陷的评估方法,该方法利用工业相机在特定光源下采集小型工件表面图像,基于图像处理及轮廓分析的方法检测小型工件的缺角、掉边、异形、麻坑、裂纹等多种缺陷,然后采用凸缺陷评估参数,以及凸缺陷评估参数与直线度评估参数相结合的方法评估小型工件的缺角、掉边等缺陷的严重程度与多少程度,采用基于直方图统计和麻坑像素所占比例的阈值分割方法评估麻坑与裂纹缺陷的程度。基于该评估,本发明还提供了一种检测表面不合格工件的流程,其误检率低且速度快,能够满足小型工件的在线检测要求,并且应用范围广泛,适用于各种小型工件的表面缺陷检测问题

    一种工件表面缺陷的全方位自动检测装置

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    本发明公开了一种工件表面缺陷的全方位自动检测装置,包括用于传送工件的传送装置和用于检测工件表面缺陷的视觉检测模块,所述的传送装置包括第一传送带和第二传送带,第一传送带和第二传送带部分紧贴,形成将工件翻转并从第一传送带传送至第二传送带的工件翻转通道,工件在第一传送带上时的底面,原本很难检测其表面的缺陷,经过工件翻转通道后翻转,从而通过视觉检测模块可以方便准确地检测其表面缺陷。本发明工件表面缺陷的全方位自动检测装置为一流水线式,其结构简单、易于实现和可控性好,能够快速、高效、大批量地检测工件表面缺陷,特别适用于检测六面体工件,具有优良的应用前景
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