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Nomograph
To determine the
RCF
(
R
elative
C
entrifugal
F
orce)
5
6
7
8
9
10
12
14
16
18
20
25
30
35
40
45
50
200
500
1000
2000
3000
4000
5000
10000
15000
20000
3
10
20
50
100
200
5000
4000
3000
2000
1000
500
400
300
10000
20000
30000
50000
100000
6000
7000
8000
9000
4500
3500
11000
13000
12000
14000
300
400
600
700
800
900
1100
1200
1300
1400
1500
2500
4
5
15
30
40
6
8
25
60
80
150
120
600
800
1500
2400
1200
15000
8000
6000
40000
11
13
15
17
19
21
22
24
23
26
28
27
29
[r.p.m]
Centrifuging radius [cm]
R.C.F. (x "g")
multiple of
gravitational
acceleration
Example of making use
A=14,4 cm
B=4600 r.p.m.
C=3400 x g
Formula used for calculation of this
nomogram :
2
R.C.F.= 11,18 * r * (n/1000)
where :
R.C.F. - multiple of
gravitational speed
r - centrifuging radius (cm)
n - rotational speed (r.p.m.)
g - gravitational acceleration
C
B
A
2
*
RCF
r
*
18
,
11
RCF
1000
n
18
,
11
*
1000
n
r
of the nomogram:
Example