The central portion of a photograph delimited by the bisectors of the overlaps with the adjacent photographs. The effective area represents the smallest usable area of least displacement in the image.
The calculated area of an outlet based on the averaged measured velocity between the fins.
The gross area of a section, less that lost by rivet or pin holes; the net area.
The effectively useable area of all rooms in a building. Not identical to the Built-on area which includes all walls etc. which is built on but not useable.
The cross-sectional area of the bellows based on the Mean Diameter of the convolutions. This area multiplied by the pressure equals the Pressure Thrust Force (Lbs.). Equalizing Ring
The total area of the medium exposed to flow in a filter element.
The smallest net area of an air terminal device used by the air stream in passing through the air terminal device.
Actual flow area of an air inlet or outlet.
The measure of an antenna system's ability to respond to radiant energy, such that the power density (per unit area) of the radiation times the effective area of the antenna measures the power delivered by the antenna to its receptors.
In the viewing area of the LCD glass, the dimensions of the perimeter of the conductive area.
For a magnetic core of a given geometry, the magnetic cross-sectional area that a hypothetical toroidal core of the same material properties would possess to be the magnetic equivalent to the given core.