sling psychrometer

{
  "id": "MLC-T-MET-002504",
  "term": "sling psychrometer",
  "field": "Meteorology and atmospheric science",
  "definition": "An instrument used to measure the water vapor content of the atmosphere in which wet and dry bulb thermometers are mounted on a frame connected to a handle at one end by means of a bearing or a length of chain. The psychrometer is whirled by hand to provide the necessary ventilation to evaporate water from the wet bulb.",
  "references": [
    "NWS Glossary"
  ],
  "url": "https://mlchart.com/terminology/meteorology/sling-psychrometer/"
}