Polarization: The orientation in space of the electrical axis of a radar wave. This electrical axis which is at right angles to the magnetic axis may be horizontal, vertical, or circular. With circular polarization, the axes rotate, resulting in a spiral transmission of the radar wave. Circular polarization is used for reducing rain clutter.

 

Related Words

Polarization: The orientation in space of the electrical axis of a radar wave. This electrical axis which is at right angles to the magnetic axis may be horizontal, vertical, or circular. With circular po . . . View Full Definition

Crossed Polarization: System of using two polarizing filters, one over the light source and one between the subject and the lens. With certain materials crossed polarization causes bi-refringent effects which are . . . View Full Definition

Polarization Test: A ratio of a one-minute meggar test (see Meggar Test) to ten-minute meggar test. Used to detect contaminants in winding insulation done typically on high voltage, V.P.I. motors which are tes . . . View Full Definition

Farraday Shutter: High-speed shutter using a pair of crossed polarizers, between which is a glass block within a coil. When a voltage passes through the coil, the plane of polarization changes, allowing light . . . View Full Definition