barograph
Quick Summary
A barograph is a type of barometer that records atmospheric pressure over time. It functions as a self-recording barometer, meaning it automatically charts changes in pressure. This is achieved by using the same principles as a standard barometer, often employing an aneroid capsule whose movements are magnified and translated to a pen that traces a line on a graph. The graph is typically wrapped around a clockwork-driven cylinder, allowing for a continuous record of pressure fluctuations. This instrument is valuable for tracking weather patterns and changes in altitude.123
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