TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
TILTED MIRROR [2 records]
Record 1 - internal organization data 2004-08-06
Record 1, English
Record 1, Subject field(s)
- Facilities and Instruments (Astronomy)
Record 1, Main entry term, English
- liquid mirror telescope
1, record 1, English, liquid%20mirror%20telescope
correct
Record 1, Abbreviations, English
- LMT 1, record 1, English, LMT
correct
Record 1, Synonyms, English
- liquid-mirror telescope 2, record 1, English, liquid%2Dmirror%20telescope
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A telescope which uses liquid as a reflecting surface. The liquid is spun at a rate which causes it to become a perfect parabolic surface. 2, record 1, English, - liquid%20mirror%20telescope
Record number: 1, Textual support number: 1 CONT
Liquid mirror telescopes cannot be tilted and hence cannot track like conventional telescopes do. To track with imagery, narrow-band filter spectrophotometry or slitless spectroscopy, one can use a technique, called time delayed integration(TDI) also known as drift scan, that uses a CCD detector that tracks by electronically stepping its pixels. 3, record 1, English, - liquid%20mirror%20telescope
Record 1, French
Record 1, Domaine(s)
- Installations et instruments (Astronomie)
Record 1, Main entry term, French
- télescope à miroir liquide
1, record 1, French, t%C3%A9lescope%20%C3%A0%20miroir%20liquide
correct, masculine noun
Record 1, Abbreviations, French
- TML 2, record 1, French, TML
correct, masculine noun
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Les télescopes à miroir liquide : Le procédé repose sur un principe simple. Pour réfléchir et concentrer les rayons lumineux en un point, le miroir d'un télescope traditionnel doit être parfaitement parabolique. Or, la surface d'un liquide prend naturellement la forme d'une parabole lorsqu'on le fait tourner sur lui-même [...] le mercure, liquide à température ambiante, réfléchit très bien la lumière. 3, record 1, French, - t%C3%A9lescope%20%C3%A0%20miroir%20liquide
Record number: 1, Textual support number: 2 CONT
Les avantages des télescopes à miroir liquide (TML) sont bien connus : facilité de réalisation, très faible coût, même pour un diamètre considérable, et excellentes qualités optiques. Leur inconvénient majeur est, bien sûr, qu'ils ne peuvent «pointer» que la verticale où ils sont installés. [...] Les détecteurs CCD en mode «drift-scan» permettent de «suivre» le déplacement apparent des sources et d'intégrer leur lumière pendant un temps de pose significatif. Ces poses, cumulées sur un certain nombre de nuits, permettent l'observation de «bandes» de ciel avec une profondeur en magnitude apparente tout à fait comparable à celle des observations pointées en imagerie sur un télescope moderne. 4, record 1, French, - t%C3%A9lescope%20%C3%A0%20miroir%20liquide
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1988-05-10
Record 2, English
Record 2, Subject field(s)
- Lasers and Masers
Record 2, Main entry term, English
- tilted mirror
1, record 2, English, tilted%20mirror
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, French
Record 2, Domaine(s)
- Masers et lasers
Record 2, Main entry term, French
- miroir incliné
1, record 2, French, miroir%20inclin%C3%A9
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record 2, Spanish
Record 2, Textual support, Spanish
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