Impactor

{
  "id": "MLC-T-MET-006463",
  "term": "Impactor",
  "field": "Meteorology and atmospheric science",
  "definition": "A device used to collect airborne particulate matter by accelerating the air stream through a nozzle and directing it against an impaction surface. Particles with sufficient inertia deviate from the airflow and deposit on the surface, allowing for size-selective collection. Impactors are widely used in atmospheric research to characterize aerosol size distributions and chemical composition.",
  "synonyms": [
    "impactometer"
  ],
  "see_also": [
    "cascade impactor",
    "rotating multicylinder",
    "collector"
  ],
  "url": "https://mlchart.com/terminology/meteorology/impactor/"
}