Centrifuge speed conversion formula (rpm and g)

In experiments involving centrifuges, RCF (relative centrifugal field) represents the relative centrifugal field, with gravitational acceleration g ( 980.66cm The multiple of /s2 ) is expressed; rpm (revolution per minute , or r/min) represents the number of revolutions per minute of the centrifuge.

The conversion formula between rmp and g is:
RCF = 1.119 x 10-5 x (rpm)2 xr

Where r is the distance between the center of the centrifuge shaft and the center of the centrifuge tube (as shown below), in cm . Since the position of the centrifuge tube is determined by the rotor (rotor), and therefore must be obtained by the parameter r Now associated rotor.

The conversion of RCF and rmp can also be read directly from the table below by taking the known r radius value on the right icon ruler and taking the known relative centrifugal force value on the RCF scale. The long line along these two points is at rpm. The intersection of the ruler is the value to be converted. vice versa.

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