TERMIUM Plus®

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APPAREIL IMPACT [1 record]

Record 1 2000-02-02

English

Subject field(s)
  • Dust Removal
  • Fluid Mechanics and Hydraulics (Physics)
DEF

impinger: Any of various instruments for collecting samples of the particles suspended in air (or another gas), this being either drawn into a liquid or directed in a jet against a flat surface so that some particles are deposited.

DEF

impactor: An impinger, especially one in which the particles are deposited on a dry surface rather than in a liquid.

CONT

The second impinger is of the Greenberg-Smith design with the standard tip.

OBS

Such devices are commonly used in apparatus used to measure the concentrations of pollutants, which they can remove with high efficiency from relatively large volumes of air.

French

Domaine(s)
  • Dépoussiérage
  • Mécanique des fluides et hydraulique (Physique)
DEF

Instrument d'échantillonnage fondé sur les effets d'impact et de rétention pour recueillir les particules et les gaz.

DEF

Séparateur qui capte les poussières et les aérosols en suspension dans un effluent gazeux, par choc sur une surface, en milieu sec ou par jet dans un liquide.

OBS

«Impinger» est le nom technique des conimètres à impact (par exemple : appareil américain de Greenberg-Smith), qui permettent de recueillir puis de doser les poussières dans un gaz.

OBS

impacteur : terme normalisé par l'AFNOR.

Key term(s)
  • impinger

Spanish

Campo(s) temático(s)
  • Eliminación del polvo
  • Mecánica de fluidos e hidráulica (Física)
CONT

Uno de los equipos empleados comunmente en la determinación de fracciones en PST es el impactador de cascada Andersen modificado [...] Cada etapa del impactador presenta numerosas perforaciones con orificios de alta presión [...] El principio de operación es la impactación de las partículas, según su tamaño [...]

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