BALUN BL510 Руководство пользователя - Страница 5

Просмотреть онлайн или скачать pdf Руководство пользователя для Испытательное оборудование BALUN BL510. BALUN BL510 20 страниц. Portable deadweight tester

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In formula:
P=F/A
Where:
P = the pressure being derived
F = the force applied by the weights
A = the effective area of the piston cylinder
1.4 Determine of the pressure
The reference level of the deadweight tester is at the top of the sealing of the pressure connection. If the weight set is
marked with a pressure unit (MPa; bar; psi or kg/cm²) the pressure can be determined by the formula:
m·g(1
－
ρ
／
ρ
P=
a
So (1
＋
λPo)[1
＋
(α
＋
p
Where is:
P: Measurement pressure
m: Mass
(kg)
g: Standard gravity 9.80665 m/s² or customized local gravity
ρ
: The density of the ambient air at the reference level of the deadweight tester, the typical value is 1.2 kg/m³
a
)
.
m
α
)(t
－
20)]
c
Pa (MPa)
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