Glossary entry (derived from question below)
English term or phrase:
dark current
Japanese translation:
暗電流
Nov 19, 2008 21:54
15 yrs ago
English term
dark current
GBK
English to Japanese
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)
Change log
Nov 19, 2008 21:54: changed "Stage" from "Preparation" to "Submission"
Nov 22, 2008 21:54: changed "Stage" from "Submission" to "Selection"
Apr 28, 2009 16:54: changed "Stage" from "Selection" to "Completion"
Proposed translations
+2
25 mins
Selected
暗電流
Definition from
Tech-On！用語:
光を遮断した状態でも発生する電荷による電流。pn接合の空乏層内で熱的に励起される再結合電流が多い。
Example sentences:
最近の車はスマートキー、ナビ、セキュリティ、エンスタ等、電流を必要とする電装品が多くあり、暗電流が多くなると、バッテリーの放電が早まってエンジンが始動できなくなり、バッテリーが上がってしまいます。 (暗電流の正確な計測方法)
自動車の場合は、時計、電装品のバックアップ、セキュリティなど、キーをOFFにしても電気が流れていることを「暗電流」といいます。 この暗電流は、車の装備品や車種ごとに違いますが、おおむね数mA～50mA位が標準的に流れている値です。 (http://minkara.carview.co.jp/userid/3022)
4 KudoZ points awarded for this answer.
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