In geometry, coaxial means that two or more forms share a common axis; it is the three-dimensional linear analogue of concentric.

Coaxial cable, as a common example, has a wire conductor in the centre (D) a circumferential outer conductor (B) and an insulating medium called the dielectric (C) separating these two conductors. The outer conductor is usually sheathed in a protective PVC outer jacket (A).

The dimension and material of the conductors and insulation determine the cables characteristic impedance and attenuation at various frequencies.

In loudspeaker design, coaxial speakers are a loudspeaker system in which the individual driver units radiate sound from the same point or axis.

See also

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  • coaxial — coaxial, iale, iaux [ koaksjal, jo ] adj. • 1911; de co et axial ♦ Qui a le même axe qu un autre objet. Câble coaxial, et n. m. un coaxial : câble formé de deux conducteurs concentriques isolés. Recomm. offic. pour feeder. Hélices coaxiales. ●… …   Encyclopédie Universelle

  • coaxial — COAXIÁL, Ă, coaxiali, e, adj. Care are aceeaşi axă cu un alt corp. [pr.: co a xi al] – Din fr. coaxial. Trimis de hai, 03.06.2004. Sursa: DEX 98  coaxiál adj. (sil. co a ) → axial Trimis de siveco, 13.09.2007. Sursa: Dicţionar ortografic … …   Dicționar Român

  • coaxial — adj. having a common axis. Syn: coaxal. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • coaxial — having a common axis, 1904, as a term in mathematics; coaxial cable is 1934. See CO (Cf. co ) + AXIAL (Cf. axial) …   Etymology dictionary

  • coaxial — adj. 2 g. 1. Que tem o mesmo eixo que outro corpo. 2. cabo coaxial: cabo constituído por dois condutores concêntricos, separados por um espaço cheio com uma substância dielétrica. 3. hélices coaxiais: conjunto de duas hélices de avião que giram… …   Dicionário da Língua Portuguesa

  • coaxial — adjetivo 1. [Figura, cuerpo] que tiene diferentes partes cilíndricas con un mismo eje de simetría …   Diccionario Salamanca de la Lengua Española

  • coaxial — (De co y el lat. axis, eje). adj. Se dice de la figura o cuerpo, compuesto de diferentes partes cilíndricas, que tienen común su eje de simetría …   Diccionario de la lengua española

  • coaxial — ► ADJECTIVE 1) having a common axis. 2) (of a cable or line) transmitting by means of two concentric conductors separated by an insulator. DERIVATIVES coaxially adverb …   English terms dictionary

  • coaxial — [kō ak′sē əl] adj. [ CO + AXIAL] 1. having a common axis: also coaxal [kōak′səl] 2. designating a compound speaker consisting of a smaller unit mounted within and connected with a larger one on a common axis: the smaller unit reproduces the… …   English World dictionary

  • Coaxial — Câble coaxial « Coaxial » redirige ici. Pour rotors principaux coaxiaux, voir rotor contrarotatif. Le câble coaxial ou ligne coaxiale est une ligne de transmission ou liaison asymétrique, utilisée en hautes fréquences, composée d un… …   Wikipédia en Français

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