BALUN BL510 Manual do utilizador - Página 6
Procurar online ou descarregar pdf Manual do utilizador para Equipamento de teste BALUN BL510. BALUN BL510 20 páginas. Portable deadweight tester
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ρ
: Mass density, ρ value of stainless steel =7.93x10³kg/m
m
Aluminum =2.7 x10³kg/m
So: effective area at zero pressure (m²) @ t=20℃
Po: This is pressure value when piston module doesn't be deformed, can be instead by P, (MPa)
α
: thermal expansion coefficient piston, the typical value is 4.5×10
p
α
: thermal expansion coefficient cylinder, the typical value is 4.5×10
c
T: The temperature of piston (℃)
λ: pressure distortion coefficient piston + cylinder (MPa - ¹), Example: the piston and cylinder is tungsten carbide
material, cylinder outside diameter is 22 mm, cylinder height is 30 mm, piston length is 38 mm, the λ value as
below:
Part Number
KY0.6
KY1
KY6
KY25
KY60
KY70
KY100
1.5 Piston cylinder assembly
3
Pressure Range
Piston Diameter Piston Area
(0.04~0.6)MPa
11.28 mm
(0.04~1)MPa
11.28 mm
(0.1~6)MPa
5.046 mm
(0.5~25)MPa
3.568 mm
(1~60)MPa
2.523 mm
(1~70)MPa
2.523 mm
(1~100)MPa
2.523 mm
, ρ value of carbon steel =7.8x10
3
-6
-1
℃
-6
-1
℃
λ value of tungsten carbide
1 cm
Negligible
2
1 cm
Negligible
2
0.2 cm
Negligible
2
0.1 cm
2
7.413 ×10
0.05 cm
2
7.413 ×10
0.05 cm
2
7.196 ×10
0.05 cm
2
7.196 ×10
kg/m
, ρ value of
3
3
MPa - ¹
-7
MPa - ¹
-7
MPa - ¹
-7
MPa - ¹
-7
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