Intensité (en W/m^2) calculée avec l'aire sous la courbe de la radiance spectrale
8
수식 9: "I" Subscript, 1 , Baseline equals Start integral from 0 to infinity , end integral, StartFraction, 2 pi "c" squared "h" left parenthesis, "x" , right parenthesis to the negative 5th power Over exp left parenthesis, StartNestedFraction, "h" "c" NestedOver left parenthesis, "x" , right parenthesis "k" "T" , EndNestedFraction , right parenthesis minus 1 , EndFraction "d" "x"I1=∫∞02πc2hx−5exphcxkT−1dx
equals=
59856397.7 8 0 959856397.7809
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Radiance spectrale (en W/m^2/nm) en fonction de la longueur d'onde (en nm) calculée avec la loi de Planck
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수식 11: "R" equals StartFraction, 10 to the negative 9th power times 2 pi "c" squared "h" left parenthesis, lambda times 10 to the negative 9th power , right parenthesis to the negative 5th power Over exp left parenthesis, StartNestedFraction, "h" "c" NestedOver lambda times 10 to the negative 9th power "k" "T" , EndNestedFraction , right parenthesis minus 1 , EndFractionR=10−9·2πc2hλ·10−9−5exphcλ·10−9kT−1
equals=
75568.3 1 5 0 7 1 675568.3150716
11
수식 12: lambda equals 563λ=563
400400
700700
12
Divers
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13
Boutons
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23
31
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Maintenir enfoncer la touche "shift" ("majuscule")
et approcher le curseur de l'axe que vous souhaitez zoomer.
"T" equals 5700 KT=5700K
lambda Subscript, "m" "a" "x" , Baseline equals 508 nmλmax=508nm
"I" equals 5.9 8 5 6 4 8 times 10 to the 7th power W/msquaredI=5.985648×107W/m2