IMPACTOR Russian patent published in 2007 - IPC G01N15/02 

FIELD: devices for intake of suspended spray particles from air and division thereof by fractions of known dimensions and may be used for analyzing dispersion composition and concentration of industrial and natural dust in environment.

SUBSTANCE: impactor consists of body, tape-drive mechanism with accumulating and protecting tapes and a filter. Body is made in form of sections, mounted in cascaded fashion, each section being provided with tape-drive mechanism, substrate with perforated through apertures in its central part and slit through apertures along edges, and nozzle, made in form of slit aperture, turned at sharp angle in the direction of movement of accumulating tape. Filter is located in output section and is made in form of ribbon.

EFFECT: user may record the concentration of spray and its dispersion in time, possible joint measurement of spectral composition and concentration of spray in large time interval.

4 dwg