Abstract: A leak detection module for checking the seal-tightness of an object to be tested by tracer gas is provided, including a leak detector and a probe configured to be manipulated by a user; and a vision device including a processing and display unit configured to communicate with the leak detector, a securing means configured to secure the vision device on a head of the user, and a viewing surface fixed to the securing means and configured to be placed in a field of view of the user, the processing and display unit being further configured to display, on the viewing surface, information relating to detection of leaks including at least one signal representative of a concentration of tracer gas measured by the leak detector. A method for checking the seal-tightness of an object to be tested by tracer gas is also provided.

Abstract: A leak detection module for checking the seal-tightness of an object to be tested by tracer gas is provided, including a leak detector and a probe configured to be manipulated by a user; and a vision device including a processing and display unit configured to communicate with the leak detector, a securing means configured to secure the vision device on a head of the user, and a viewing surface fixed to the securing means and configured to be placed in a field of view of the user, the processing and display unit being further configured to display, on the viewing surface, information relating to detection of leaks including at least one signal representative of a concentration of tracer gas measured by the leak detector. A method for checking the seal-tightness of an object to be tested by tracer gas is also provided.

Abstract: The invention concerns a detection method for checking sealed product packages for leaks, characterized in that it comprises the following steps: at least one previously sealed product (2) is placed in an air, nitrogen, or oxygen atmosphere, in a chamber (3) (step 101), the pressure in the chamber (3) is lowered to a secondary vacuum pressure below 10?1 mbar and, while continuing the secondary vacuum pumping of the chamber (3), the gases contained in the chamber are ionized to monitor the change in the chamber (3) of the concentration of at least one gaseous species of the gas volume contained within the sealed product (2) chosen from among nitrogen, oxygen, or argon, by analysis by optical emission or mass spectrometry (step 102).

Abstract: The invention concerns a detection method for checking sealed product packages for leaks, characterised in that it comprises the following steps: at least one previously sealed product (2) is placed in an air, nitrogen, or oxygen atmosphere, in a chamber (3) (step 101), the pressure in the chamber (3) is lowered to a secondary vacuum pressure below 10?1 mbar and, while continuing the secondary vacuum pumping of the chamber (3), the gases contained in the chamber are ionised to monitor the change in the chamber (3) of the concentration of at least one gaseous species of the gas volume contained within the sealed product (2) chosen from among nitrogen, oxygen, or argon, by analysis by optical emission or mass spectrometry (step 102).

Abstract: The object of the present invention is a device for depolluting a non-sealed, confined environment (1) having a natural leakage (6) and including an interior space (9) bounded by a wall (7), comprising a depollution enclosure (11, 30) means (32, 42) for pumping gas and means (33, 43) for introducing gas. The depollution enclosure (11, 30) has at least two chambers (12, 13; 31, 41) separated by a sealing wall (14, 49). A first chamber (12, 31) is constituted by the part of the enclosure that is situated is contact with the wall (7) of the non-sealed, confined environment (1) and cooperates with first means for pumping (42) and first means for introducing gas (43), and a second chamber (13, 41) is constituted by the part of the enclosure which is situated in contact wife the natural leakage (6) from the non-sealed, confined environment (1) and cooperates with second means for pumping (42) and second means for introducing gas (43).

Abstract: The object of the invention is a system for analyzing gases which are at a pressure on the order of a secondary vacuum. The system includes a gas ionization device that includes a cathode having conducting walls defining a cylindrical volume and a disc including at least one central through hole, an anode placed substantially at the center of the hole, a plasma source, the plasma being generated in the cylindrical volume by the combined action of an electric field and a magnetic field, orthogonal to the electric field, a system for collecting the light radiation emitted by the plasma, a cylindrical cavity coaxial to the anode having a conductance lower than that of the cylindrical volume and arranged between the ionization device and the collector system, and an analysis device for the ionized gases including an optical spectrometer for analyzing the evolution of the radiating spectrum.

Abstract: The object of the invention is a system (2) for analyzing gases which are at a pressure on the order of a secondary vacuum. The system includes a gas ionisation device (4) that comprises a cathode (14) having conducting walls (12) defining a cylindrical volume (11) and a disc (15) including at least one central through hole (31), an anode (13) placed substantially at the centre of the hole (31), a plasma source, the plasma being generated in the cylindrical volume by the combined action of an electric field E (17) and a magnetic field B (19) orthogonal to the electric field E (17), a system for collecting the light radiation emitted by the plasma, a cylindrical cavity (23) coaxial to the anode (13) having a conductance lower than that of the cylindrical volume (11) and arranged between the ionisation device (5) and the collector system (5), and and an analysis device (6) for the ionised gases including an optical spectrometer (41) for analysing the evolution of the radiating spectrum.