Aneroidibaarometrit

Aneroidibaarometrit is a Swedish term referring to aneroid barometers. An aneroid barometer is a type of barometer that measures atmospheric pressure using a small, flexible, sealed metal box called an aneroid cell. This cell expands or contracts in response to changes in air pressure. As the air pressure increases, the cell is compressed, and as the pressure decreases, it expands. These small movements are amplified by a system of levers and springs, which then move a needle on a dial calibrated to show atmospheric pressure in units such as hectopascals (hPa), millibars (mbar), or inches of mercury (inHg).

Unlike mercury barometers, aneroid barometers do not use liquid and are therefore more portable and less susceptible to breakage. They are commonly used in weather forecasting, aviation, and mountaineering. The word "aneroid" itself comes from the Greek word "anēros," meaning "without fluid." The calibration of an aneroid barometer is crucial for accurate readings and typically involves comparing it to a known standard. While generally reliable, aneroid barometers can sometimes require recalibration due to mechanical wear or changes in altitude. Their compact size and robustness have made them a popular choice for both scientific and domestic applications.