Yingtai: Centrifugal Force And Relationship With Rotational Speed

Yingtai: Centrifugal Force And Relationship With Rotational Speed

In centrifugation, centrifuges utilize centrifugal force to achieve sample separation, which is generated through high-speed rotation. There is a close correlation between centrifuges and centrifugal force: typically, the greater the centrifugal force of a centrifuge, the better its separation efficiency, resulting in finer separation of materials. Generally, materials with lower density require greater centrifugal force for effective separation.

01 What is Centrifugal Force?

Centrifugal force, as an actual force, fundamentally does not exist; it is a fictitious force imagined for computational convenience in non-inertial reference frames. Centripetal force causes objects to experience attraction, repulsion, or any tendency toward a central point. Descartes interpreted centrifugal force as a tendency of objects to maintain their specified quantity. The distinction lies in centripetal force existing in an inertial reference frame, while centrifugal force exists in a non-inertial frame.

02 What is Relative Centrifugal Force (RCF)?

Typically, the radial forces experienced by rotating heads are measured using relative centrifugal force (RCF). Relative centrifugal force is the ratio of centrifugal force to gravitational force.

03 Conversion Relationship between Rotational Speed and Relative Centrifugal Force

The magnitude of centrifugal force is closely related to rotational speed, which refers to the number of rotations per minute (rpm) of an object.