Field strength

Field strength

In physics, the field strength of a field is the magnitude of its vector value.

In theoretical physics, field strength is another name for the curvature form. For the electromagnetic field, the curvature form is an antisymmetric matrix whose elements are the electric field and magnetic field: the electromagnetic tensor.

In radio frequency telecommunications, field strength is the intensity of the received electromagnetic field which will excite a receiving antenna and thereby induce a voltage at a specific frequency in order to provide an input signal to a radio receiver for such applications as cellular, broadcasting, wi-fi and a wide variety of other radio-related applications.

See also

* Gravitational field
* Signal strength


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  • field strength — noun the vector sum of all the forces exerted by an electrical or magnetic field (on a unit mass or unit charge or unit magnetic pole) at a given point in the field • Syn: ↑field intensity • Hypernyms: ↑intensity, ↑strength, ↑intensity level •… …   Useful english dictionary

  • field strength — lauko stipris statusas T sritis automatika atitikmenys: angl. field intensity; field strength vok. Feldstärke, f rus. напряжённость поля, f pranc. intensité de champ, f …   Automatikos terminų žodynas

  • field strength — lauko stipris statusas T sritis fizika atitikmenys: angl. field intensity; field strength vok. Feldstärke, f rus. напряжённость поля, f pranc. intensité de champ, f …   Fizikos terminų žodynas

  • field strength meter — lauko stiprio matuoklis statusas T sritis Standartizacija ir metrologija apibrėžtis Įtaisas elektrinio arba magnetinio lauko stipriui matuoti. atitikmenys: angl. field intensity meter; field strength meter vok. Feldstärkemesser, m rus. измеритель …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • field strength meter — lauko stiprio matuoklis statusas T sritis fizika atitikmenys: angl. field strength meter vok. Feldstärkemesser, m rus. измеритель напряжённости поля, m pranc. mesureur d’intensité de champ, m …   Fizikos terminų žodynas

  • field strength variation — lauko stiprio kitimas statusas T sritis fizika atitikmenys: angl. field strength variation vok. Feldstärkeschwankung, f rus. колебание напряжённости поля, n pranc. variation d’intensité du champ, f …   Fizikos terminų žodynas

  • field strength — Physics. the vector sum of all forces exerted by a field on a unit mass, unit charge, unit magnetic pole, etc., at a given point within the field. Also called field intensity. [1895 1900] * * * …   Universalium

  • magnetic field strength — magnetinio lauko stipris statusas T sritis automatika atitikmenys: angl. intensity of magnetic field; magnetic field intensity; magnetic field strength; strength of magnetic field vok. magnetische Feldstärke, f rus. напряжённость магнитного поля …   Automatikos terminų žodynas

  • magnetic field strength — n. The amount of magnetic flux in a unit area perpendicular to the direction of magnetic flow. Syn: magnetic intensity, magnetic induction, magnetic flux density. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • EMC problem (excessive field strength) — In electromagnetic compatibility,EMC problems can occur when the system which is being adversely affected is subject to a high field strength due to a radio transmitter. It is important to note that these effects are not due to defects in the… …   Wikipedia

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