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    • 2. 发明申请
    • METHOD FOR THE AUTOMATIC INSPECTION OF A WELDING SEAM USING HEAT FLOW THERMOGRAPHY
    • 程序焊缝BY热流THERMOGRAHPIE的自动检测
    • WO2009003702A8
    • 2010-01-21
    • PCT/EP2008005429
    • 2008-07-03
    • THERMOSENSORIK GMBHLOUBAN ROMANDOETTINGER CHRISTOPHSTOLZ PETERBOEHM MANFRED
    • LOUBAN ROMANDOETTINGER CHRISTOPHSTOLZ PETERBOEHM MANFRED
    • G01N25/72
    • G01N25/72
    • In a method for the automatic inspection of a welding seam using heat flow thermography, a feature vector (W(N)) is established which represents a time profile of a detected heat flow (11). The feature vector (W(N)) is used to ascertain a first characteristic thermal image, which corresponds to a minimum heat flow (Wmin) through an object under test, and a second characteristic thermal image, which corresponds to a maximum heat flow (Wmax) through the object, from a series of thermal images, wherein a heat flow (13) directly from an excitation source has already dissipated. In order to detect and evaluate the welding seam with respect to defects of different types of defect, one suitable thermal image from the series of thermal images is used for each defect type, wherein the characteristic thermal images serve as references for determining the thermal image which is suitable in each case.
    • 在用于通过热通量热成像的装置的焊缝的自动检查的方法中,特征向量(W(N))被创建,表示感测到的热通量(11)的时间特性。 上的特征向量的基础(W(N))从一系列热图像的第一特性的热图像中,最小的热通量(W分钟)通过的受试者形成待检查对象对应;以及第二特性热图像,通过对象的最大热流量差(Wmax) 所对应确定,由此热流(13)直接从已经激发源衰减。 每种类型的错误,从系列热图像的合适的热图像被用于焊接的各种类型的错误的错误方面的检测和评估,与特性热图像作为用于指定相应的合适的热图像的引用。