Ventilated psychrometer

{
  "id": "MLC-T-MET-009981",
  "term": "Ventilated psychrometer",
  "field": "Meteorology and atmospheric science",
  "definition": "An instrument designed to measure atmospheric humidity by comparing the temperature of a dry-bulb thermometer with that of a wet-bulb thermometer. A fan or other mechanism actively draws air over both thermometer bulbs, promoting rapid evaporation from the wet bulb. This active airflow provides more accurate readings than a natural ventilation psychrometer.",
  "url": "https://mlchart.com/terminology/meteorology/ventilated-psychrometer/"
}