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Glossary entry

English term or phrase:

dark current

French translation:

courant d'obscurité

Mar 19, 2009 14:54
15 yrs ago
3 viewers *
English term

dark current

GBK English to French Science Physics
Definition from Tyco Electronics Corporation:
The thermally induced current that exists in a photodiode in the absence of incident optical power.
Example sentences:
This voltage may be as low as 10 mV or as high as 50 V and the dark currents may vary from pA to μA depending upon the junction area and the process used. Dark current is always specified at a particular value of reverse applied voltage. (optoelectronics.perkinelmer.com)
The photodiode noise in is the sum of the thermal noise (or Johnson noise) ij of a resistor which approximates the shunt resistance and the shot noise isD and isL resulting from the dark current and the photocurrent. (Hamamatsu Corporation)
Dark current is dependent on temperature. While dark current may initially be low, it will increase as the device temperature increases. (tpub.com)
Proposed translations (French)
5 +2 courant d'obscurité
4 courant d'obscurité
Change log

Mar 19, 2009 14:38: changed "Kudoz queue" from "In queue" to "Public"

Mar 19, 2009 14:54: changed "Stage" from "Preparation" to "Submission"

Mar 22, 2009 14:55: changed "Stage" from "Submission" to "Selection"

Mar 23, 2009 09:54: changed "Stage" from "Selection" to "Completion"

Proposed translations

+2
10 mins
Selected

courant d'obscurité

Definition from own experience or research:
Le courant d'obscurité est le courant qui traverse la photodiode ou le phototransistor provoquant une sortie non nulle même en l'absence de lumière à l'entrée.
Example sentences:
le courant d'obscurité d'une photodiode ou d'un phototransistor... (dictionnaire encyclopédique d'électron)
Note from asker:
краткотрайни материални активи, а не просто „краткотрайни активи“?
Изглежда, че правилният отговор е turnover of non-current tangible assets.
Peer comment(s):
agree michaelmestre : vous avez été plus rapide :o)
5 mins
agree Yves Georges : Je connais bien ce domaine: spectrophotomètres (barettes de diodes, photo multiplicateurs) et spectrométrie de masse (mutiplicateurs d'électrons, photo multiplicateurs, galettes de microcanaux). J'approuve la réponse sans réserve
3 days 18 hrs
Something went wrong...
4 KudoZ points awarded for this answer.
13 mins

courant d'obscurité

Alternate translation : "courant noir" (slightly less common)
Definition from Tyco Electronics Corporation:
Le courant induit thermiquement qui existe dans une photo-diode en l'absence de puissance lumineuse incidente.
Example sentences:
En l'absence de tout rayonnement éclairant le photomultiplicateur, on peut observer en sortie un courant électrique. Ce dernier est appelé courant noir ou courant d'obscurité (L'imageur Cerenkov annulaire d'AMS)
Courant d'obscurité (en Ampères). Ce courant est généré par des processus physiques autres que l'absorption des photons à détecter. (Qwip Wikipedia article)
Analyse en fonction de la température du courant d'obscurité et du bruit électrique des diodes GaAlAs/GaAs à multipuits quantiques. (thesis by Wintrebert-Fouquet Wintrebert)
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