Aneroidibarometri

Aneroidibarometri refers to an aneroid barometer, a type of barometer that measures atmospheric pressure without using liquid. Instead, it relies on a small, flexible, sealed metal box called an aneroid cell. This cell is partially evacuated of air, causing it to expand or contract in response to changes in atmospheric pressure. As the pressure outside the cell increases, it squeezes the cell, and as the pressure decreases, the cell expands. These small movements are amplified by a system of levers and springs, which then move a pointer across a calibrated scale. This scale indicates the atmospheric pressure, typically in units like inches of mercury, millimeters of mercury, or hectopascals. Aneroid barometers are commonly used for weather forecasting and in altimeters, where altitude is determined by measuring the decrease in air pressure with increasing height. Their portability and lack of a liquid column make them more practical for many applications compared to mercury barometers. While generally accurate, aneroid barometers can be affected by temperature changes, and some models incorporate compensating mechanisms for this.