| 摘要 |
An electrical mobility spectrometer for aerosol particles of an atmosphere to be examined comprises a first (18) and a second (20), spaced, parallel, coaxial conductive disks between which is established an electric field, an annular slot (22) formed in the first disk for communicating with the atmosphere to be examined, a central intake (26) for bringing about a circulation from the periphery of the disks of a centripetal, stable, laminar filtered air flow, an annular slot (28) made in the second disk, a device for varying the selected electrical mobility and an aerosol detector or collector (17).
|
