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décalage Doppler

English translation: Doppler effect/shift

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
French term or phrase:décalage Doppler
English translation:Doppler effect/shift
Entered by: Louisa Tchaicha

14:35 Nov 3, 2011
French to English translations [PRO]
Science - Physics / moyen de génération d'u
French term or phrase: décalage Doppler
Hi,

Physiquement, le fonctionnement des dispositifs décrits est basé sur l'émission électromagnétique liée à l'oscillation des électrons soumis au double champ laser, à la fréquence optique. Cette émission apparait dans le référentiel du laboratoire avec un décalage Doppler important variant comme 2 fois le facteur de Lorentz au carré.

Please help
Thank you
Louisa Tchaicha
Tunisia
Local time: 03:53
Doppler effect/shift
Explanation:
Like the sound an ambulance makes when it rushes by.

http://en.wikipedia.org/wiki/Doppler_effect

--------------------------------------------------
Note added at 2 hrs (2011-11-03 17:22:55 GMT)
--------------------------------------------------

After plenty of feedback, I realise that I should have made the following more clear:
The Doppler effect causes a shift in frequency, so the best translation would be Doppler shift, or maybe something along the lines of shift caused by the Doppler effect if this is needed to fit the sentence.
Selected response from:

Joshua Pepper
United Kingdom
Local time: 03:53
Grading comment
Thank you everyone
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +11Doppler effect/shift
Joshua Pepper
3Doppler offset
pooja_chic


  

Answers


1 hr   confidence: Answerer confidence 3/5Answerer confidence 3/5
Doppler offset


Explanation:
Another option
http://www.hughes.com/HNS Library Presentations and White Pa...

pooja_chic
Native speaker of: Native in EnglishEnglish
PRO pts in category: 4

Peer comments on this answer (and responses from the answerer)
neutral  Joshua Pepper: To me, "offset" suggests that the shift is constant and systematic or intentional, so I'm not sure that it works in this specific context (décalage variant).
1 hr
neutral  M.A.B.: Never heard of
8 hrs
Login to enter a peer comment (or grade)

3 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +11
Doppler effect/shift


Explanation:
Like the sound an ambulance makes when it rushes by.

http://en.wikipedia.org/wiki/Doppler_effect

--------------------------------------------------
Note added at 2 hrs (2011-11-03 17:22:55 GMT)
--------------------------------------------------

After plenty of feedback, I realise that I should have made the following more clear:
The Doppler effect causes a shift in frequency, so the best translation would be Doppler shift, or maybe something along the lines of shift caused by the Doppler effect if this is needed to fit the sentence.

Joshua Pepper
United Kingdom
Local time: 03:53
Specializes in field
Native speaker of: Native in EnglishEnglish, Native in FrenchFrench
PRO pts in category: 12
Grading comment
Thank you everyone

Peer comments on this answer (and responses from the answerer)
agree  kashew: for shift
0 min
agree  Terry Richards: Yes. shift
8 mins
agree  chris collister: Loosely speaking. it's the "effect" which causes the "shift" in frequency (and hence wavelength)
33 mins
agree  Dr Lofthouse
1 hr
agree  Bashiqa
1 hr
agree  pooja_chic
1 hr
agree  Zareh Darakjian Ph.D.
1 hr
agree  Tony M: Yes for 'shift', which is what is being referred to specifically here.
2 hrs
agree  Michaël Zamo (X): shift happens
3 hrs
agree  Nigel Wheatley: shift is the better translation for décalage
6 hrs
agree  M.A.B.: Doppler shift is the widely used term - hence red-shift
9 hrs
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