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發光強度的單位 (Candela)

SI luminosity intensity measure. Symbol: cd. It is one of the base units in SI, and it is currently defined as follows: the Candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540*10^12 Hertz and that has a radiant intensity in that direction of 1/683 Watt per Steradian.

Ontology

SUMO / UNITS-OF-MEASURE

Class(es)

is instance of

發光強度的單位

Superclass(es)

[tree]

is subclass of

抽象的

is subclass of

數量

is subclass of

物理量

is subclass of

[tree]

is subclass of

抽象的

is subclass of

關係

is subclass of

is subclass of

函數

is subclass of

is subclass of

函數量

is subclass of

發光強度的單位

Coordinate term(s)

電流強度單位-安培放射性活度單位英國熱量單位-BTU 熱量的單位-卡路里攝氏庫侖電壓單位-電伏特電容量單位-法拉克入射劑量電感單位頻率單位-赫茲功或能的單位-焦爾絕對溫標光束的能量單位照明度的國際單位公尺克分子量力的單位-牛頓電阻單位-歐姆壓力的單位力量單位弧度秒計電導單位劑量當量球面度磁通量密度之國際單位一元恆定函數量電壓單位瓦特磁通量

Related WordNet synsets

candle, candela, cd, standard candle: the basic unit of luminous intensity adopted under the System International d'Unites; equal to 1/60 of the luminous intensity per square centimeter of a blackbody radiating at the temperature of 2,046 degrees Kelvin