TETE LASER IMMERSIBLE

摘要

The laser head comprises a laser source (2), a gas supply (3), a housing (4), and an optical system (5) disposed within the housing. The housing includes an inlet for laser beam, and a nozzle outlet. The optical system and the outlet are spaced apart by a cavity. The laser head further comprises a transparent separator for separating the liquid-tight cavity into a dry cavity and a floodable cavity, a position sensor, a differential pressure sensor, and a lever that manually moves the separator between open and closed positions. The laser head comprises a laser source (2), a gas supply (3), a housing (4), and an optical system (5) disposed within the housing. The housing includes an inlet for laser beam, and a nozzle outlet. The optical system and the outlet are spaced apart by a cavity. The laser head further comprises a transparent separator for separating the liquid-tight cavity into a dry cavity and a floodable cavity, a position sensor, a differential pressure sensor, and a lever that manually moves the separator between open and closed positions. The dry cavity and floodable cavity are present in fluid communication with each other in the open position, and the dry cavity is sealingly separated from the floodable cavity in the closed position. The housing comprises a first outer opening for entry of gas inside of the dry cavity and a second opening for entry of gas into the floodable cavity. The gas supply is connected to first opening and second opening. A switch is placed between the gas supply and the second opening. The separator includes a slide and a plate guided by the slide. The separator is coupled to the sensor so that the sensor detects the position of separator during operation of the laser head. The laser source and the position sensor are coupled so that the laser source emits a laser beam when the separator is present in the open position. The differential pressure sensor measures the pressure difference between the dry cavity and floodable the cavity during operation of the laser head. The separator is further coupled with the differential pressure sensor so that the displacement of the separator between the open position opening and the close position is ordered by the measurement of the differential pressure between the dry cavity and the floodable cavity, the separator is maintained in the closed position when the differential pressure sensor indicates a pressure in the dry cavity lower than a pressure in the floodable cavity and is maintained in the open position when the differential pressure sensor indicates the pressure in the dry cavity higher than or equal to the pressure in the floodable cavity. The separator and the switch are coupled so that the switch prevents the passage of gas into the floodable cavity when the separator moves from the open position to the closed position.