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US 7,458,928 B2Granted
Centrifuge energy management system and method
AssigneeKendro Laboratory Products, LP
InventorsDavid M. Carson, Vijay Mehta, Harvey Schneider
Life of this patent
Estimating the term…
Abstract
A method and apparatus for a centrifuge energy management system prevents the energy level of a rotor from exceeding a predetermined containment limit for the centrifuge by monitoring the energy level and either terminating a run operation of the centrifuge if it surpasses the containment limit or reducing the rotational speed of the rotor.
Claims22
A method of centrifuge energy management, comprising the steps of:
- calculating a projected energy level of a centrifuge rotor at a predetermined set speed based upon the measuring of an deceleration rate of the rotating centrifuge rotor;
- comparing the calculated energy level to an energy range of a set centrifuge rotor;
- and
- terminating a centrifuge run or reducing a rotational speed of the centrifuge rotor if the calculated energy level exceeds the energy range of the set centrifuge rotor.
1 more element
A method of centrifuge energy management, comprising:
- calculating a projected (kinetic) energy level of a centrifuge rotor at a predetermined set speed based upon the measuring of a deceleration rate of the rotating centrifuge rotor;
- comparing the calculated energy level to a predetermined maximum containment energy level for the centrifuge system;
- and
- terminating a centrifuge run or reducing a rotational speed of the centrifuge rotor when the calculated energy level exceeds an energy level approximately twelve or fifteen percent below the predetermined containment energy level.
1 more element
A method of centrifuge energy management, comprising:
- initializing by inserting a rotor, setting a rotor identification, and setting the rotor speed to a predetermined set speed for a rotor run;
- measuring of a kinetic energy of the installed rotor by measuring the deceleration rate while coasting at a prescribed rotation speed;
- calculating what the kinetic energy would be, when the rotor reaches the predetermined set speed;
- comparing when the calculated kinetic energy at the predetermined set speed is outside of the expected energy range for the set rotor;
- terminating the run or speed or automatically reducing the speed when the calculated kinetic energy is greater than expected energy;
- and
- allowing rotor run at set speed when the calculated kinetic energy is lower than the expected energy.
4 more elements
Dependencies are inferred from the claim text.