Centrifuge

Details Centrifuge Centrifuge

2006-11-29

2009-06-16

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Plural diverse motor controls

Running-speed control

C318S066000, C318S069000, C494S007000, C494S009000, C494S010000

Reexamination Certificate

active

07548034

ABSTRACT:
A centrifuge including: a rotor rotating with a sample contained therein; a rotating shaft rotatably engaged with the rotor; a motor rotating the rotor and the rotating shaft; a belt transmitting rotational force of the motor to the rotating shaft; a rotor speed detecting unit detecting a rotation speed of the rotor; a motor speed detecting unit detecting a rotation speed of the motor; and a control unit controlling the motor, wherein the control unit calculates a signal for controlling the rotation speed of the rotor on the basis of a signal from the rotor speed detecting unit and controls the motor on the basis of a signal from the motor speed detecting unit and the calculated signal.

REFERENCES:
patent: 4827197 (1989-05-01), Giebeler
patent: 5681256 (1997-10-01), Nagafuji
patent: 5726881 (1998-03-01), Inaniwa et al.
patent: 5857955 (1999-01-01), Phillips et al.
patent: 5917688 (1999-06-01), Kido et al.
patent: 6029300 (2000-02-01), Kawaguchi et al.
patent: 6616588 (2003-09-01), Takahashi et al.
patent: 7372219 (2008-05-01), Fujimaki et al.
patent: 2005-290890 (2005-10-01), None

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