Abstract: The invention relates to a measuring device for performing measurements on a workpiece, which are used to prepare and/or assess a weld seam produced by a welding device and having an initial portion and/or an end portion. The measuring device comprises a measuring unit comprising an optical coherence tomograph including a sample beam and sample, wherein the sample beam can be selectively focused on different measuring positions relative to a current machining position along the weld seam. The measuring device further comprises a fastening unit configured to attach at least the sample head to the welding device, and a control unit configured to dynamically adjust the leading beam and/or the trailing beam during machining along the weld seam. The invention further relates to a machining system, a method for performing measurements on a workpiece, and a method for machining a workpiece.

Abstract: The invention relates to a measuring device for performing measurements on a workpiece which are used to prepare and/or assess a weld seam produced by a welding device and having an initial portion and/or an end portion. The measuring device comprises a measuring unit comprising an optical coherence tomograph including a sample beam source, wherein the sample beam can be selectively focused on different measuring positions relative to a current machining position along the weld seam. The measuring device further comprises a fastening unit which is configured to attach at least the sample head to the welding device, and a control unit which is configured to dynamically adjust the leading beam and/or the trailing beam during machining along the weld seam. The invention further relates to a machining system, a method for performing measurements on a workpiece, and a method for machining a workpiece.

Abstract: A method, measuring device, machining system and computer program product are provided for determining a corrected height signal from measurement data obtained with optical coherence tomography. The measurement data comprises an object signal and a background signal superimposed on the object signal, the object signal and the background signal being subject to different dispersion.

Abstract: The invention relates to a measuring device for acquiring surface data and/or interfaces of a workpiece to be processed by a laser processing device. The laser processing device comprises a laser source and a processing head which is configured to provide at least one high-energy processing beam, in particular a laser beam. The laser source and the processing head are interconnected by an optical fiber and the measuring device comprises a scanning device configured as an optical coherence tomograph for surface scanning and/or interface scanning of the workpiece. The optical fiber which interconnects the laser source and the processing head forms a component of the scanning device.

Abstract: The invention relates to a measuring device for acquiring surface data and/or interfaces of a workpiece to be processed by a laser processing device. The laser processing device comprises a laser source and a processing head which is configured to provide at least one high-energy processing beam, in particular a laser beam. The laser source and the processing head are interconnected by an optical fibre and the measuring device comprises a scanning device configured as an optical coherence tomograph for surface scanning and/or interface scanning of the workpiece. The optical fibre which interconnects the laser source and the processing head forms a component of the scanning device.