Altimeter - Wikipedia An altimeter, or altitude meter, is an instrument used to measure the altitude of an object relative to a fixed level [1] The measurement of altitude is called altimetry, which is related to the term bathymetry, the measurement of depth under water
How Does An Altimeter Work? - Boldmethod Altimeters measure height above particular pressure levels To do this, they compare the pressure of outside static air to the standard pressure of 29 92" Hg of air at sea level Air is denser at sea level than aloft, so pressure decreases as altitude increases (and vice versa)
What Is an Altimeter and How Does It Work? - thedailyeco. com An altimeter is a device that measures altitude, meaning the vertical distance between a given point and certain fixed level In most practical uses, this fixed level is sea level Its use is essential in various activities such as aviation, mountaineering and outdoor sports
How it works: The altimeter - AOPA The altimeter measures the height of an aircraft above a fixed level The instrument senses this by taking the ambient air pressure from the static port That air is plumbed through the back of the panel and into the back case of the altimeter Inside the altimeter is a sealed disc called an aneroid, or bellows
The Aircraft Altimeter - AeroToolbox The altimeter is a pressure instrument used in the cockpit to measure vertical height, and is one of the components that make up an aircraft’s pitot-static system An altimeter is essentially an aneroid barometer that is calibrated to measure altitude rather than pressure
Altimeter - SKYbrary Aviation Safety The altimeter provides an output to the transponder system to enable the transmission of the flight level or altitude to the air traffic control