Part chen spectrometer, i. b. for submicron region, kron ic particles

摘要

The spectrometer electrostatic aerosol particles of an atmosphere to be examined, comprises a first (18) and a second (20) disks coaxial conductors spaced apart and parallel, between which it establishes an electrical field, an annular slot (22) formed in the first disk in order to communicate with the atmosphere to be examined, a suction unit (26) to circulate from the periphery of the disks, a flow of filtered air laminar, centripetal and stable, an annular slot (28) made in the second disc, a third conductive disk (32) located opposite the second disc, the means for injecting between the second and third disks, a flow of filtered air laminar, a central pipe (38) in order to bring the particles to a detector (40).