phase angle of a signal
61Electrical characteristics of dynamic loudspeakers — A dynamic loudspeaker driver s chief electrical characteristic is its electrical impedance versus frequency. Explanation The most common driver type is an electro mechanical transducer using a voice coil rigidly connected to a diaphragm… …
62Derivation of the Routh array — The Routh array is a tabular method permitting one to establish the stability of a system using only the coefficients of the characteristic polynomial. Central to the field of control systems design, the Routh–Hurwitz theorem and Routh array… …
63Fusée de proximité — Mark 53 telle qu utilisée par l’US Navy. Photo prise dans les années 1950. Une fusée de proximité est une fusée d artillerie conçue pour provoquer la détonation d un explosif quand la distance entre la fusée et la cible est plus petite qu une… …
64List of electrical engineering topics (alphabetical) — This page aims to list, alphabetically, all articles related to the specific discipline of electrical and electronics engineering. For a thematic list, please see List of electrical engineering topics. For the broad field of engineering, see List …
65Reactance (electronics) — Reactance is a circuit element s opposition to an alternating current, caused by the build up of electric or magnetic fields in the element due to the current. Both fields act to produce counter emf that is proportional to either the rate of… …
66Protective relay — See also: Power system protection In electrical engineering, a protective relay is a complex electromechanical apparatus, often with more than one coil, designed to calculate operating conditions on an electrical circuit and trip circuit breakers …
67Dimmer — For the New Zealand band, see Dimmer (band). A common dual dimmer manufactured by Electronic Theatre Controls (ETC) …
68infrared guidance — A method of guidance in which an IR (infrared) seeker cell and a combined optics and flight control system act to home the vehicle onto the heat source. The illustration indicates the operation of an infrared guidance system. If the missile is… …
69Lissajous figure — /lee seuh zhooh , lee seuh zhooh /, Physics. the series of plane curves traced by an object executing two mutually perpendicular harmonic motions. [1875 80; named after Jules A. Lissajous (1822 80), French physicist] * * * also called… …
70Network analysis (electrical circuits) — Linear Network Analysis Elements …
