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dozer811
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I am trying to determine the torque exerted by a motor running a centrifuge at constant speed. How do you determine torque when there is no acceleration? I know it's there somewhere...
dozer811 said:I understand that a larger torque must be applied to speed up the rotation, but once the system is running at a steady speed (ie no angular acceleration), then the only torque applied is to overcome friction. The two setups should have the same friction because the mass differences are neglible. The force is being applied by a motor via belt to the centrifuge. The application force is not changing between the two.
Centrifuge torque is the force that causes an object to rotate around a central axis. In the context of a centrifuge, it is the force that is exerted on the rotor as it spins.
Determining centrifuge torque is important because it helps scientists understand the forces that a centrifuge exerts on samples or substances being spun, which can affect the accuracy and reliability of their experiments.
Centrifuge torque can be calculated by multiplying the mass of the sample being spun by the acceleration of the centrifuge. It is measured in units of force, such as Newtons or pound-force.
Yes, it is possible to determine centrifuge torque without knowing the acceleration. This can be done by measuring the mass of the sample being spun and the radius of the centrifuge, and using the equation for centripetal force: F = mω²r, where F is the centrifuge torque, m is the mass, ω is the angular velocity, and r is the radius.
Centrifuge torque can affect the operation of a centrifuge by causing it to vibrate, generate excess heat, or potentially damage the rotor or samples being spun. It is important to determine and monitor centrifuge torque to ensure safe and efficient operation of the centrifuge.