What is a fan?
Fan beam describes the formula of the mass or energy emitted from the transmitter, especially the radio wave transmitter. The shape of the beam from different tools for medical imaging can determine the clarity and distinction of images. The radios, applied in radio astronomy, are more efficient than tight rays of pencils when scanning deep space for radio signals.
The shape of the fan of the fan is an ellipse. The ellipse or oval has the main axis and a small axis. Both axes cut the oval to two same halves. In the fan beam, the main axis is at least three times longer than a smaller axis, resulting in an oval that is quite crushed. If the beam could be seen from the side, it would look like a fan with rays pointing from origin and spreading in a radial direction.
Paints spraiders often have a fan attachment to form a wide beam with a narrow height. Sprinklers on grass are also configured in this shape. The nozzles with this shape create a wide beam, which makes them even APRAmore likely to be pplication. The distance between the nozzle and the object determines the width of the beam and the density of the applied material.
The application for medical display and radio astronomy prefers the fan radio transmitter. This is effective because more data accumulates in one pass, but the data density is uniform. This density is critical in the scanning space, as density changes could be misinterpreted as meaningful radio signals. The data returned from the scan must be manipulated to create useful images. Mathematics have developed a mathematical routine, a fan of a fan that is responsible for the geometry of the beam.
Computer tomography (CT), medical imaging device, shows the complexity of these calculations. In this machine, X -rays are reflected from the tested tissues of the body area and detectors are collected. The machine dresses the patient, take over a thousand ocross -sectional furrows. The computer manipulates data and restores a two -dimensional image or three -dimensional model of the scanned area.
The wireless industry also examines fans' technology. In the range of radio frequencies assigned to wireless local communication, 60 Gigahertz (60 GHz), radio waves spread or bend around obstacles poorly. A person standing between the transmitter and the person using a notebook causes a significant loss of the signal received by the computer. The antennas of the fan of the fan will significantly reduce this problem.