Patent ID: 7006216

Claim:
A device for the chemical analysis of solid or molten material samples ( 8 ) present in a metallurgical vessel ( 1 ), based on the laser-induced emission spectroscopy, comprising a laser source ( 10 ) generating a laser beam ( 11 ), a deflection device ( 21 ) deflecting the laser beam, a focusing device ( 24 ) focusing the laser beam ( 11 ) as well as a device ( 14 , 21 , 27 ) that guides the reflections ( 26 ) of a plasma ( 25 ) ignited by the laser beam ( 11 ) on the material sample ( 8 ) to an evaluation device ( 28 ), characterized in that, between the laser source ( 10 ) and the material sample ( 8 ), an arm ( 14 ) equipped with at least one movable joint ( 12 ) and having a cavity ( 19 ) for the laser beam ( 11 ) is provided for guiding the laser beam ( 11 ), with the deflection device shaped as a mirror ( 21 ) or a prism being provided at the articulation thereof, and that the laser source ( 10 ) as well as the evaluation device ( 28 ) are arranged so as to be independent of the material sample ( 8 ) in terms of their movements and that the arm ( 14 ) is equipped with the deflecting device ( 21 ) for guiding the reflections ( 26 ) to the evaluation device ( 28 ).