Sunday, July 18, 2010

단위 환산표


목록열기 ----전기기초 (30)
단위 환산표 ----전기기초

2006/12/18 13:42

복사http://blog.naver.com/gootaeji/110012225352

단위환산 표[2004/11/13]

SI 단위 접두어

배수접두어기호배수접두어기호
1018엑사(exa)E10-1데시(deci)d
1015페타(peta)P10-2센티(centi)c
1012테라(tera)T10-3밀리(milli)m
109기가(giga)G10-6마이크로(micro)μ
106메가(mega)M10-9나노(nano)n
103키로(kilo)k10-12피코(pico)p
102헥토(hecto)h10-15펨토(femto)f
101데카(deka)da10-18아토(atto)a

길이 단위

단위cmminftydmiles
cm10.010.39370.03280.01092.17e-8
m100139.373.28081.09360.0062
in2.540.025410.08830.02781.58e-5
ft30.480.30481210.33330.00019
yd91.4380.914436310.00059
miles1609301609.363360528017601


무게 단위
단위mggkgtonozlb
mg10.0010.0000011.0e-90.0000352.204e-6
g100010.0010.0000010.035270.0022
kg1000000100010.00135.2732.20459
ton1.0e910000001000135273220459
oz28349.528.34950.028350.00002810.0625
lb453592453.5920.453590.00045161


넓이 단위
단위ft2in2ha
10.00010.1550.0010762.2e-140.00003
1000011550107640.00010.3025
ft26.45160.0006410.0069446.45e-80.000195
in2929.0300.09290314410.0000090.028109
ha1.0e8100001.55e710763913025.6
33051.23.30585122.9535.576330511


부피(체적) 단위
단위cm3m3in3ft3gal(미)
cm310.00000010.0010.061020.000030.00026
m31000000110006102735.3165264.186
10000.001161.0270.035310.26418
in316.3870.0000160.0163810.000570.00432
ft328316.80.0283128.3169172817.48051
gal(미)3785.430.003783.785432310.163681


압력 단위
단위atmbarmmHg (torr)mmH2Opsi(lb/ft2)kgf/cm2pa
atm110132576010332.214.69561.03323101325
bar0.9869231750.0610197.114.5041.01972100000
mmHg(torr)0.0013160.001333113.5950.019340.001360.01333
mmH2O0.0000970.0000980.07355610.0014220.00019.80669
psi(lb/ft2)0.0680460.06894851.715703.06610.0703076894.757
kgf/cm20.9678410.980665735.5591000014.2233198066.5
pa0.000010.000010.0075020.1019710.0001450.0000111


에너지(열) 단위
단위J(N·m)kcalkW·hkgf·mft·lbfBTU
J(N·m)10.0002390.00000030.1019720.7375620.000948
kcal4186.7510.001163426.933087.993.97093
kW·h3600000859.855136709826552243414.43
kgf·m9.806650.0023430.00000317.233010.009301
ft·lbf1.355820.0003240.00000040.13825510.001286
BTU1054.350.251830.000293107.514777.6491


힘 단위
단위HPkgf·m/sW(J·S)kWkcal/sBTU/s
HP176.04745.70.74570.17820.7073
kgf·m/s13.15e-319.8079.807e-32.344e-39.296e-3
W(J·S)1.342e-30.10210.0012.3884e-49.484e-4
kW1.341102100010.2390.9484
kcal/s5.614426.941874.18713.968
BTU/s1.415107.610551.0550.2521


유량 단위
단위ℓ/sℓ/min㎤/s㎥/hrft3/mingal/min
ℓ/s16010003.62.1188715.851
ℓ/min0.016667116.66670.060.0353140.26418
㎤/s0.0010.0610.00360.0021190.01585
㎥/hr0.27777816.6667277.77810.5885754.402295
ft3/min0.4719528.317471.951.6990217.4807
gal/min0.0630893.7853463.0890.227120.1316771


밀도 단위
단위g/㎤(s.q)g/ℓ㎏/㎥lb/㎥lb/ft3lb/gal
g/㎤(s.q)1100010000.03612462.4228.34516
g/ℓ0.001110.0000360.0624220.008345
㎏/㎥0.001110.0000360.0624220.008345
lb/㎥27.682927682.627682.611728231.015
lb/ft30.0160216.0216.020.00057910.13369
lb/gal0.011983119.83119.830.0043297.480031


속도 단위
단위m/skm/hrin/sft/smiles/hrknots
m/s13.639.373.2812.2371.944
km/hr0.2778110.9360.91130.62140.54
in/s0.02540.091410.8330.05680.0494
ft/s0.30481.09731210.68180.0293
miles/hr0.4471.609317.61.466710.869
knots0.51441.85220.2541.68781.15081


가속도 단위
단위㎝/s2m/s2in/s2ft/s2galg
㎝/s210.010.3937010.03280810.00102
m/s2100139.37013.280841000.101971
in/s22.540.025410.0833332.540.00259
ft/s230.480.304812130.480.031081
gal10.010.3937010.03280810.00102
g980.6659.80665386.08932.1741980.6651


각도 단위
단위deg.sminradiansquadcycles
deg.13600600.0174530.0111110.002778
s0.00027810.0166674.848e-63.086e-67.716e-7
min0.0166676012.909e-41.852e-44.63e-5
radians57.29582062643437.7510.636620.159155
quad9032400054001.570810.25
cycles3601296000216006.2831941


조도 단위
단위luxfoot-candelalumen/ft2lumen/㎡phot
lux10.0929030.92903110.0001
foot-candela10.763911110.763910.001076
lumen/ft210.763911110.763910.001076
lumen/㎡10.0929030.9290310.0001
phot10000929.03929.03100001


휘도 단위
단위candela/in2candela/㎡foot-lambertlambertstilb
candela/in211550.003452.28910.4869480.1550003
candela/㎡0.00064510.0001880.0003140.0001
foot-lambert0.002213.4262610.0010760.000343
lambert2.053613183.1929.310.31831
stilb6.4516100002918.633.14159151


농도 단위
단위%μg/ℓ㎎/ℓg/ℓppmppb
%11e81000010100001e8
μg/ℓ1e-710.0010.0000010.0011
㎎/ℓ0.0001100010.00111000
g/ℓ0.11e70.0010.0000010.0011e7
ppm0.0001100010.00111000
ppb1e-710.0010.0000010.0011


점도 단위
단위cPP(g/㎝.s)gmf.s/㎠lbf.s/in2mPa·sN.s/㎡
cP10.011.02e-71.45e-710.001
P(g/㎝.s)10011.02e-61.45e-51000.1
gmf.s/㎠98039.2980.39210.01421998039.298.0392
lbf.s/in2689475768947.5770.3265168947576894.76
mPa·s10.011.02e-71.45e-710.001
N.s/㎡1000100.01021.45e-410001


동점도 단위
단위cStSt㎠/s㎡/hrin2/sft2/s
cSt10.010.010.00360.001551.076e-5
St100110.360.1550390.001076
㎠/s100110.360.1550390.001076
㎡/hr277.7782.777782.7777810.4306630.00299
in2/s6456.456.452.32210.006943
ft2/s9290392.03992.039334.451144.0361


온도단위 환산식
℉→℃:
(5/9)×(℉-32)
℃→Kelvin :
℃+273.15
℃→℉ :
(9/5)×℃-32
℉→Rankine:
℉+459.67


전기/전자 단위
항목기호표시산출공식SI단위SI기호CGS단위
전류I, iI=E/R, I=E/Z, I=Q/tAmpereAAbampere
전하량Q, qQ=I×t, Q=C×ECoulombCAbcoulomb
전압E, eE=I×R, E=W/QVoltVAbvolt
저항R, rR=E/I, R=(n×1)/AOhmΩAbohm
저항률nP=(R×A)/IOhm-meterΩ.mAbohm-cm
conductanceG, gG=(a×A)/I, G=A/(n×1)SiemensSAbmho
도전율GG=R/Z2SiemensSAbmho
capacitanceaa=1/n, a=I/(R×A)Siemens-meterS/mAbmho/cm
cC=Q/EFaradFAbrarad
유전물aFarad/meterF/mStar farad/cm
상대유전율arar=a/aoNumericalNumerical
자기유도LL=N×(d/dt)HenryHAbhenry
상호유도MM=K×(L1×L2)1/2HenryHAbhenry
EnergyJJ=e×I×tJouleJErg
kWhkWh=kW/3600, 3.6M×JKilowatthourkWh
유효전력WW=J/t W=E×I×coseWattWAbwatt
무효전력jQjQ=E×I×sineVarVarAbvar
피상저력VAVA=E×IVolt-ampereVA
역률PF, pfPF=W/(V×A) PF=W/(W+jQ)Ohm
유도ReactanceXLXL=2ð×f×LOhmΩAbohm
용량ReactanceXCXC=1/(2ð×f×C)OhmΩAbohm
ImpedanceZZ=E/I, Z=R+j×(XL-XC)SiemensΩAbohm
SusceptanceBB=X/Z2SiemensSAbohm
AdimittanceYY=I/E, Y=G+jBHertzSAbohm
주파수ff=1/TSecondHzCps, Hz
주기TT=1/fSecondSSecond
시간상수TT=l/R, T=R×CRadians/SecondSSecond
각속도uu=2ð×frad/SRadians/Second

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