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1 directional
adj direccional -
2 directional antenna
s TECNOL antena direccional -
3 directional coupler
s acoblador direccional. Def. del Termcat: Dispositiu passiu de quatre accessos que en ser inserit en una línia de transmissió permet extreure una part de l'energia que es propaga en una determinada direcció. Consta de dues línies de transmissió, una principal, que és la que s'insereix en el circuit i per la qual viatja, sense experimentar cap alteració, el senyal que s'hi connecta, i una de secundària, que és la que rep la mostra de potència del senyal de la línia principal. L'adjectiu direccional indica que només s'acobla o bé l'energia de l'ona incident o bé la de l'ona reflectida. Els acobladors direccionals són d'utilitat en sistemes de comunicacions per a monitoritzar la potència de sortida de transmissors i també en instruments com ara analitzadors de xarxes, per a mesurar els paràmetres de dispersió (S) i les pèrdues de retorn de dispositius. -
4 directional filter
s ELECTRÒN filtre direccional -
5 directional microphone
s ELECTRÒN micròfon direccional
См. также в других словарях:
direcţional — DIRECŢIONÁL, Ă, direcţionali, e, adj. Care arată direcţia; care emite într o singură direcţie. [pr.: ţi o ] – Din fr. directionnel. Trimis de LauraGellner, 13.07.2004. Sursa: DEX 98 DIRECŢIONÁL adj. (fiz.) directiv. (Raze direcţional.) Trimis… … Dicționar Român
directional — adj. 1. of or pertaining to direction (definition 2). [WordNet 1.5] 2. serving to indicate direction. [PJC] 3. (Radio) transmitting radio signals in a specific direction, or receiving signals only from a narrow angle of directions, thus serving… … The Collaborative International Dictionary of English
directional — [də rek′shə nəl, dī rek′shə nəl] adj. 1. of, aimed at, or indicating (a specific) direction 2. designed for radiating or receiving radio signals most effectively in one or more particular directions [a directional antenna] 3. designed to pick up… … English World dictionary
directional — [[t]daɪre̱kʃən(ə)l, dɪr [/t]] 1) ADJ GRADED If something such as a radio aerial, microphone, or loudspeaker is directional, it works most effectively in one direction, rather than equally in all directions at once. [TECHNICAL] Dish aerials are… … English dictionary
directional — adjective Date: 1842 1. of, relating to, or indicating direction in space: a. suitable for detecting the direction from which radio signals come or for sending out radio signals in one direction only < a directional antenna > b. operating most… … New Collegiate Dictionary
directional — directionality, n. directionally, adv. /di rek sheuh nl, duy /, adj. 1. of, pertaining to, or indicating direction in space. 2. Radio. adapted for determining the direction of signals received, or for transmitting signals in a given direction: a… … Universalium
directional — adj. Directional is used with these nouns: ↑microphone … Collocations dictionary
directional — di|rec|tion|al [dıˈrekʃənəl, daı ] adj technical 1.) relating to the direction in which something is pointing or moving 2.) a directional piece of equipment receives or gives out radio signals from some directions more strongly than others … Dictionary of contemporary English
directional — di|rec|tion|al [ dı rekʃənl, daı rekʃənl ] adjective TECHNICAL 1. ) relating to or pointing in a particular direction 2. ) designed to send or receive radio signals better in one direction than in others: a directional microphone/antenna … Usage of the words and phrases in modern English
directional — Has no meaning but looks good when used by posers This report is realistic, timely and directional in its approach … Dictionary of american slang
directional — Has no meaning but looks good when used by posers This report is realistic, timely and directional in its approach … Dictionary of american slang
