Describe How an Aneroid Barometer Works
This is done by detecting the natural high or low pressure in the air surrounding the vacuum sealed chamber which moves the pointer by contracting and detracting. Uses a vacuum sealed chamber to negate a needle. Aneroid Barometer How Does It Work Mechanism Uses Concerns The evacuated capsule or usually several capsules stacked to add up their. . Aneroid barometer measures the external pressure using the expansion or contraction of a flexible metal box which leads to moving a needle on a pressure scale to get the reading. The capsule in an aneroid barometer works by using a flexible metal that is welded shut to create an interior vacuum. An aneroid barometer works by using a vacuum sealed chamber to negate a needle or pointer. Since this box has had the air pumped out of it small changes in external air pressure cause its metal to expand and contract. An aneroid barometer is built around a sealed box blue sometimes called a...