TERMIUM Plus®
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MIRROR RETURN [2 records]
Record 1 - internal organization data 2007-07-09
Record 1, English
Record 1, Subject field(s)
- Audiovisual Techniques and Equipment
- Photography
Record 1, Main entry term, English
- mirror return
1, record 1, English, mirror%20return
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Mamiya RZ67... Mirror return, shutter cocking and winding. 1, record 1, English, - mirror%20return
Record 1, French
Record 1, Domaine(s)
- Audiovisuel (techniques et équipement)
- Photographie
Record 1, Main entry term, French
- retour du miroir
1, record 1, French, retour%20du%20miroir
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1985-01-02
Record 2, English
Record 2, Subject field(s)
- Aeroindustry
- Radar, Radio Guidance and Goniometry
Record 2, Main entry term, English
- blade flash
1, record 2, English, blade%20flash
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Detection relies entirely on echoes returned by the main rotor blades which do yield a significant Doppler effect. Experience has shown that rotor blades, whether metal or plastic, behave like mirrors in terms of reflecting electromagnetic radiation. In other words, a blade will only give a usable return to the transmitter location if it is perpendicular to line connecting blade and transmitter. At the receiver, a series of return pulses can be detected, each corresponding to the passage of a blade. By analogy with the illumination of a rotating mirror, this pulsed return pattern is known as "blade flash". 1, record 2, English, - blade%20flash
Record 2, French
Record 2, Domaine(s)
- Constructions aéronautiques
- Radar, radioguidage et radiogoniométrie
Record 2, Main entry term, French
- éclair de pale
1, record 2, French, %C3%A9clair%20de%20pale
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
La détection repose entièrement sur les échos renvoyés par les pales du rotor principal qui, eux, présentent un effet Doppler important. L'expérience a montré que les pales, métalliques ou plastiques, se comportent vis-à-vis du rayonnement électromagnétique comme des miroirs. En d'autres termes, elles ne réfléchissent l'émission radar que si elles sont perpendiculaires à celle-ci. A la réception, on enregistre donc une série de retours de caractères impulsionnels, chacun correspondant au passage d'une pale. Par analogie avec l'illumination d'un miroir tournant, on appelle "éclairs de pale" ces retours impulsionnels. 1, record 2, French, - %C3%A9clair%20de%20pale
Record 2, Spanish
Record 2, Textual support, Spanish
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