Aneroid barometer, meaning (English)
What is an aneroid barometer? - Definition An aneroid barometer is a metal barometer, with an almost airless box with air pressure. It measures the pressure differences of air. The degree of structure of the box by the surrounding air is possible by using a needle on a distribution. The Barometer works on the principle of series-switched aneroid (vacuum) boxes or capsules (known as jewel case inserts of Vidi). These cases are usually made of phosphor-bronze or beryllium-copper. If air pressure rise than the boxes are more pressed in, the boxes are less pressed by low air pressure. Through a lever system, these changes were transferred to a needle that moves over a scale. Most home barometers are aneroid barometers. In Surveying (barometric elevation) make this system of sophisticated barometers (aneroid Paulin) service to the elevation of different points to be determined. A barometer usually contains mercury, the aneroid barometer contains no mercury. The aneroid barometer is only use...