Duray為您提供計量單位與簡易換算查詢:
1.長度單位:
1 in = 25.4 mm | 1 ft = 0.3048 m |
1 mile = 1609.3 m | 1 micron =10-6 m |
2. 質量單位:
1 lb = 453.6 g | 1 cwt = 50.8 Kg | 1 ton(imp) = 1016Kg |
1 ton(美噸) = 907.2 Kg | 1 tonne = 1000Kg |
3.力矩單位:
1 inlb = 0.113 Nm | 1 ftlb = 1.356 Nm |
1 kgm = 9.807 Nm | 1 ft poundal = 0.0421Nm |
4.溫度單位:
(º F-32) x 5/9 = º C | K-273.15 = º C |
5.功及能量單位:
1 lbft = 1.356 J | 1 Nm = 1 J |
1 kgm = 9.807 J | 1 kW/hr = 3.6MJ |
6.面積單位:
1 in2 = 6.45cm2 | 1 ft2 = 0.093m2 |
7.壓力單位:
1 psi= 6.89 kPa 1 kgf/cm2 = 98.07kPa
1 bar= 100 kPa 1 bar = 14.5 psi
1atmosphere = 98.1 kPa 1"(STANDARD) = 101.33 kPa
1 cmwater = 97.89Pa 1 in water = 248.64 Pa
1 mmmercury = 133.3 Pa 1 in mercury = 3.39 kPa
1 Torr= 133.3 Pa 1 ft water = 0.0298 bar
1 bar= 33.33 ft water
8.體積單位:
1litre= 0.001 m3 1 cu.ft. = 0.0283m3
1cu.in.= 16.39 cm3 1 gal(imp) = 4.546L
1gal(us) = 3.79 L 1 fluid oz.(imp) = 28.41 mL
1fluid oz.(us) = 29.57 mL
9.力單位:
1 lbf = 4.45 N | 1kgf = 9.81 N | 1 kp(kilopond) = 9.81N |
1 poundal = 138.3mN | 1 ton force = 9.964kM |
10.功率單位(功/時間):
1 lbft/sec = 1.356W | 1 kgm/sec = 9.807W | 1Nm/sec = 1 W |
1 Nm/sec = 1 W | 1 Joule/sec = 1 W | 1 H.P.(imp) = 745.7W |
11.流量單位:
Cv值:水流量(US gal/min)于60ºF下,流經差壓為1psi之閥門而所得出之流量定值。( Cv X 1000=l/min ) |
kv值:水流量 (L/ min)于20ºF下,流經差壓為1kgf/cm2之閥門而所得出之流量定值。 |
KV值: 水流量 (m3于20ºF下,流經差壓為1kgf/cm2之閥門而所得出之流量定值。 /min) |
S值:氣動元件有效截面積(mm2) |
流量系數之間的轉換: |
CV = 1.17 KV S = 18.45CV |
S.T.P = 標準溫度及壓力 (0 º C 及101.3 kPa**壓力) |
N.T.P = 正常溫度及壓力 (20 º C 及101.3 kPa**壓力) |
M.S.C = 公制標準情況 (15 º C 及101.3 kPa**壓力) |
ANR = 溫度 :20 °C及相對濕度:65% |
12.等值換算:
1 psi = 6.895 kPa =0.07kg/cm2 = 0.06895 bar =0.0703 atm |
1 standard atmosphere = 14.7psi = 101.3 kPa = 1.01325 bar |
1 kg/cm2 = 98.07 kPa = 14.22psi = 28.96 ins mercury |
1 ft lb = 0.13826 kgm = 1.356Nm |
1 L = 1000 cm3 = 1.7598 pint = 106 mm3 |
1 tonne = 1000 kg = 0.984 ton= 2205 lb |
1 m3 = 106 cm3 |
1 cu ft/min = 0.0283 m3/min =28.3 l/min |
1 Pa = 1 N/m2 |
13.單位縮寫:
單 位 | 縮 寫 | 單 位 | 縮 寫 |
Pascal | Pa | Newton | N |
metre | m | litre | L |
Watt | W | Newton metre | Nm |
Joule | J | Megajoule | MJ |
° Kelvin | K |