Overview of Centrifugal Force and Relative Centrifugal Force
An important parameter of a centrifuge is centrifugal force. What is centrifugal force?
Based on the principle of material sedimentation, put the the rotor (with sample solution in the tubes or jars) on the centrifugal shaft. The centrifugal force (FC) of Cence centrifuge is produced by the high speed rotation of the rotating head.
The strong centrifugal force generated by the high-speed rotation of the rotating head around the shaft makes the particles of different nature in the sample separate from each other according to their density or shape.
According to the law of uniform circular motion in physics, the material particles in the centrifugal tube placed in the rotor are subject to an outward centrifugal force in the centrifugal field.
Due to the different radii of the rotors of various centrifuges or the different distance between the centrifugal tube and the center of the rotating shaft, the centrifugal force on the particles is also different.
In addition to the centrifugal force, the material particles are also affected by gravity P. Therefore, in recent years, relative centrifugal force (RCF), that is, the multiple value of centrifugal acceleration generated by the centrifuge and the earth’s gravitational acceleration, is adopted internationally to express the speed of the centrifuge. The unit is the gravitational acceleration g (g = 9.8m / S2).
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