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monotypie

Glossary entry

French term or phrase:

pilotage en modulation

English translation:

modulated drive

Added to glossary by Louisa Tchaicha
Feb 26, 2014 00:36
10 yrs ago
1 viewer *
French term

pilotage en modulation

French to English Tech/Engineering Electronics / Elect Eng traitement numérique par modulation
Hello,

"Un tel traitement numérique est de préférence réalisé avec une diode électroluminescente (LED), notamment dans le spectre UV, comme source de rayonnement, car les diodes électroluminescentes sont particulièrement bien adaptées pour un pilotage en modulation. "

Help!
Thank you
Proposed translations (English)
4 modulated drive
4 dimming driver
5 -1 particularly well suited for driving a modulation / generating a modulated light
3 -1 suitable for modulation

Discussion

chris collister Feb 28, 2014:
A (not particularly technical) suggestion is "particularly easy to modulate".
Tony M Feb 28, 2014:
@ Daryo Please see my suggestion below for a suitably technical formulation!
Daryo Feb 28, 2014:
@chris collister "though strictly speaking it's not the diode per se which is being modulated but its output."
that agrees perfectly with http://www.google.com/patents/WO2013045807A1?cl=fr which seems to be the ST; any idea for a "suitably technical formulation"?
chris collister Feb 26, 2014:
Ah, it's starting to make more sense. The UV light causes the biological material to fluoresce, which is detected by some other light sensitive element. The UV led may be generating some form of carrier (ie the output is modulated) which might make detection and subsequent signal processing easier.
Louisa Tchaicha (asker) Feb 26, 2014:
more context Système de détection et/ou de quantification in vitro par fluorimétrie d'au moins un analyte présent dans un échantillon de fluide constituant un matériau biologique, notamment pour un test immunologique
Tony M Feb 26, 2014:
@ Chris I think you misunderstood me! I didn't really say that "only a signal can be modulated" — what I meant is there has to be some kind of drive (albeit only DC!) in order for it to be modulated; i.e. an LED per se cannot be modulated — only the drive to it that makes it light up!
chris collister Feb 26, 2014:
@Tony Yes, I too did some very similar experiments, though not as sophisticated as a colour signal! However, I don't necessarily agree that only a signal can be modulated - PWM effectively IS the signal and requires no carrier as such. The average light output from an led is controlled this way, though of course we generally don't see the flicker. In this particular case we don't know what the modulation scheme is, though perhaps we could say that leds are particularly suitable for controlling the modulation.
chris collister Feb 26, 2014:
What exactly is this "traitement numérique"? I'm guessing that the UV light-emitting diode, which is particularly well suited to being modulated, is somehow generating a signal which is then processed digitally to produce some other useful output. IMHO, "pilotage" is redundant, though strictly speaking it's not the diode per se which is being modulated but its output. The modulation scheme itself could take one of very many forms, pulse width modulation being one of the simplest.
As an alternative to the slightly clumsy "well suited to being modulated", "easy to modulate" is neater and conveys the idea.

Proposed translations

8 hrs
Selected

modulated drive

Though please note, I wouldn't tend to take this term in isolation like this, I think you need to phrase the whole thing slightly differently in order to make it sound natural and technically plausible in EN.

The 'pilotage' is there because, technically, you can't modulate an LED — you can only modulate the signal that is driving it!

When I was a lot younger, I did some home experimentation with the transmission of modulated signals via visible red LEDs; creating a beam using two magnifying make-up mirrors, I succeeded in transmitting composite colour video signals over a short distance, and we were all set to scale up to much greater distances.

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Note added at 2 jours6 heures (2014-02-28 07:28:40 GMT)
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...LEDs are particularly suitable for use with a modulated drive

would be one way of phrasing this in order for it to sound natural and technically accurate.
Peer comment(s):
neutral Daryo : if the ST is the one I found, they talk of the "modulation" of the output of the LED - the light produced by the LED (obtained by modulating the input, surely, but the talk of the output, not of the input to the LED)
2 days 6 hrs
The use of 'pilotage' (which you yourself pointed out is significant) clearly indicates they are talking about the way the LED is driven; there's no reason to change the emphasis of the s/t, it makes perfect sense this way round.
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4 KudoZ points awarded for this answer. Comment: "Thanks!"
-1
3 hrs

suitable for modulation

*
Peer comment(s):
disagree Daryo : where is the "pilotage" part gone?
3 hrs
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10 hrs

dimming driver

On utilise aussi "dimmable driver", mais les LED d'éclairage sont quasiment toujours associées à un driver, d'où l'expression de "pilotage" francisation peut-être excessive parce que tout le monde utiliser "driver"

IL y a deux méthodes de gradation: PWM (le plus probable pour "modulation" et analogique
https://www.digikey.com/us/en/techzone/lighting/resources/ar...
http://www.lighting.philips.com/gb_en/subsites/oem/product_p...
Reference:

http://www.changzhi-electronics.com/index.php?_m=mod_product&_a=prdlist&cap_id=246&gclid=CPCjsPDK6bwCFQkFwwodMQUAqg

http://www.harvardeng.com/clanalogue.do;jsessionid=3FE11E0BFB73C41A6620247597A439AD

Peer comment(s):
neutral chris collister : I don't think so, at least not here. The led in question is UV, and the "traitement numérique" is an essential feature od whatever this thing is supposed to do. A lot more context is needed.
2 hrs
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-1
21 hrs
French term (edited): particulièrement bien adaptées pour un pilotage en modulation

particularly well suited for driving a modulation / generating a modulated light

personally I prefer "generating a modulated light/signal"

as in:

- un moyen de comparaison entre la première valeur de fluorescence et la seconde valeur de référence pour calculer un résultat final pour établir la détection et/ou la quantification de l'analyte.

Ainsi, le système selon l'invention effectue un traitement numérique par modulation d'amplitude et démodulation, qui permet d'atteindre des rapports signal sur bruit particulièrement intéressants.

Un tel traitement numérique est de préférence réalisé avec une diode électroluminescente (LED), notamment dans le spectre UV, comme source de rayonnement, car les diodes électroluminescentes sont particulièrement bien adaptées pour un pilotage en modulation. Avec une diode électroluminescente, on peut en particulier assurer une série de flashs lumineux d'amplitude, de formes temporelles et fréquentielles bien définies et contrôlées, les flashs pouvant être espacés temporellement les uns des autres de manière contrôlée et précise. Avec une telle possibilité de pilotage de la diode électroluminescente, le traitement numérique qui suit permet de rejeter/limiter le bruit. Il est bien entendu que le premier signal numérique de fluorescence et le second signal numérique de référence sont démodulés séparément à la même fréquence correspondant à la fréquence porteuse du signal sinusoïdal porteur, avant de réaliser la comparaison qui permettra d'extraire le résultat final qui se présente, de préférence, sous la forme d'une unité relative de fluorescence (RFU).
...
http://www.google.com/patents/WO2013045807A1?cl=fr

Such digital processing is preferably carried out with a light emitting diode (LED), particularly in the UV spectrum as a radiation source, because the light emitting diodes are particularly well suited for driving a modulation.

http://www.google.com/patents/WO2013045807A1?cl=en
Peer comment(s):
disagree Tony M : 'driving a modulation' is technical nonsense in EN, and the patent you quote is clearly a poor translation into EN; 'generating a modulated light' is technically unsatisfactory language for this register.
1 hr
well, at least you have now a far wider context ....although I don't see how "generating a modulated light/signal" could be wrong or "not technical enough"; any suggested improvement?
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