Psychrometric hygrometer

{
  "id": "MLC-T-CHM-009653",
  "term": "Psychrometric hygrometer",
  "field": "Chemistry",
  "definition": "An instrument used to measure atmospheric humidity by comparing the temperatures of a dry-bulb thermometer and a wet-bulb thermometer. The wet-bulb thermometer is covered with a moist cloth, and the difference in temperature is related to the amount of water vapor in the air. This difference is used to calculate relative humidity and dew point.",
  "subject": "Chemistry and the Environment",
  "see_also": [
    "evaporation",
    "relative humidity"
  ],
  "references": [
    "PAC, 1990, 62, 2167. 'Glossary of atmospheric chemistry terms (Recommendations 1990)' on page 2196 (https://doi.org/10.1351/pac199062112167)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/psychrometric-hygrometer/"
}