zero+phase+angle

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• phase angle — i. An angle between the sight lines to the sun and the earth measured at a remote location (e.g., other celestial bodies). ii. The number of electrical degrees between the time an AC (alternating current) voltage passes through zero moving in the …   Aviation dictionary

• phase angle — noun a particular point in the time of a cycle; measured from some arbitrary zero and expressed as an angle • Syn: ↑phase • Derivationally related forms: ↑phase (for: ↑phase) • Hypernyms: ↑point, ↑ …   Useful english dictionary

• phase — phaseless, adj. phasic, phaseal, adj. /fayz/, n., v., phased, phasing. n. 1. any of the major appearances or aspects in which a thing of varying modes or conditions manifests itself to the eye or mind. 2. a stage in a process of change or… …   Universalium

• Phase (waves) — Phase in waves is the fraction of a wave cycle which has elapsed relative to an arbitrary point.[1] Contents 1 Formula 2 Phase shift 3 Phase difference …   Wikipedia

• Phase fired controllers — Phase control (PFC), also called phase cutting, is a method of pulse width modulation (PWM) for power limiting, applied to AC voltages. It works by modulating a thyristor, SCR, triac, thyratron, or other such gated diode like devices into and out …   Wikipedia

• Zero crossing — is a commonly used term in electronics, mathematics, and image processing. In mathematical terms, zero crossing basically means the changing of sign (e.g. from positive to negative), that is represented with a crossing of the axis (zero value) in …   Wikipedia

• Zero cross circuit — A zero cross circuit is an electrical circuit that starts operation with the AC load voltage at close to zero phase. This is in relation to solid state relays, such as triacs and silicon controlled rectifiers. The purpose of the circuit is to… …   Wikipedia

• Zero-G roll — Éléments de montagnes russes Traduit de l anglais en:Roller coaster elements Les montagnes russes se composent de nombreux éléments. Ces éléments peuvent être purement techniques (frein, harnais...) ou avoir comme but d offrir des sensations aux… …   Wikipédia en Français

• Minimum phase — In control theory and signal processing, a linear, time invariant system is said to be minimum phase if the system and its inverse are causal and stable.[1][2] For example, a discrete time system with rational transfer function H(z) can only… …   Wikipedia

• Optical phase space — Optical phase diagram of a coherent state s distribution across phase space. In quantum optics, an optical phase space is a phase space in which all quantum states of an optical system are described. Each point in the optical phase space… …   Wikipedia

• Three-phase — This article deals with the basic mathematics and principles of three phase electricity. For information on where, how and why three phase is used, see three phase electric power. In electrical engineering, three phase electric power systems have …   Wikipedia