Weight barometer

{
  "id": "MLC-T-MET-010198",
  "term": "Weight barometer",
  "field": "Meteorology and atmospheric science",
  "definition": "A type of barometer that measures atmospheric pressure by balancing the force exerted by the atmosphere against a set of known weights. In one design, the pressure acts on a volume of gas or a mercury cistern, and weights are added or removed from a balance arm to maintain equilibrium. The total weight required to achieve balance is directly proportional to the atmospheric pressure, providing a highly accurate but less portable measurement than a mercury barometer.",
  "url": "https://mlchart.com/terminology/meteorology/weight-barometer/"
}