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The general term “Sensors for Arc Welding” denotes devices which – as a part of a fully mechanised welding equipment – are capable to acquire information about position and, if possible, about the geometriy of the intended weld at the workpiece and to provide respective data in a suitable form for the control of the weld torch position and, if possible, for the weld process parameters.
Here, the heat flow is measured with two thermo-couples which are arranged on the welding torch, the thermal flow is used for the side/lateral- and height control of the torch.