assembly unit and method for measuring metallurgical characteristic variables and extracting a sample of liquid molten metal using a measuring and sampling lance

摘要

The invention relates to a measuring and sampling lance (2, 20) for measuring metallurgical characteristic variables and for obtaining a sample of liquid molten metal, wherein the measuring and sampling lance (2, 20) comprises a workpiece. (3, 30) and an immersion probe (1, 10) that can be detachably attached to the contact part (3, 30), wherein the immersion probe (1, 10) can be immersed and at least at least one sensor for producing a characteristic molten metal sensor signal, and wherein a housing having an electronic unit (6, 60) is fitted to the measuring and sampling boom (2, 20), in particular on that side of the measuring boom and sampling (2, 20) that is distant from the sensor, wherein the sensor is connected to the housing via contact piece (3, 30) via an electrical connection, with the result that the sensor signal is passed to the electronic unit (6, 60) via the electrical connection, and wherein the electronic unit (6, 60) has comprises at least one analog processing unit for preprocessing the sensor signal in analog form, and wherein the electronic unit (6, 60) comprises an acceleration sensor (9) for recording the dipping process.