Adam Equipment AEA Series, Руководство оператора

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© Adam Equipment Company 2000 19
Appendixes
A method to determine the volume of the float
To determine the volume of the float the following equation can be used.
V
A - mass of float in air [g]
B - mass of float in distilling water [g]
V - float volume [cm
3
]
p - distilled water Density [g/cm
3
]
d - uplift pressure of air
[ ]
[ ]
25 , 1013
0036728 , 0 1
0012932 , 0
3
/
p
C
o
t
cm g d
×
× +
=
t - temperature of air [
o
C]
p - pressure of air
The procedure would be to measure the mass of the float in air (value A) while it is
submerged in distilled water (value B) and then put the values in for the corrections for water
density (p) and air density (d) at the temperature and pressure measured using other
instruments.
The values for water density at various temperatures can be found in most chemistry or
physics reference texts. A partial list is given below.
A - B
= [cm
3
]
p - d