METHOD FOR SEPARATING SOLID AND LIQUID PHASES

    公开(公告)号:US20240173726A1

    公开(公告)日:2024-05-30

    申请号:US18552135

    申请日:2022-02-17

    Abstract: A method is provided for controlling separation of solid and liquid phases in a centrifugal basket of a centrifugal. The method includes the steps of monitoring at least associated values of the rotational speed of the centrifugal basket and a purging of the liquid phase from the centrifugal basket, wherein the purging of the liquid phase from the centrifugal basket is monitored using an accelerometer, determining a safe temporal range within which temporal range a wash water can be safely applied to the content of the centrifugal basket, and applying a wash water to the content of the centrifugal basket during at least a portion of the safe temporal range. A computer program product and a centrifugal system are provided for carrying out the method.

    Centrifuge having control unit that stops rotation of a rotor when a displacement-conversion value satisifies a displacement determination criterion

    公开(公告)号:US11958063B2

    公开(公告)日:2024-04-16

    申请号:US16961838

    申请日:2019-01-10

    Inventor: Chitoshi Miki

    CPC classification number: B04B9/10 B04B5/0414 B04B13/00

    Abstract: Damage caused by displacement of a rotating shaft is prevented with an acceleration sensor. A centrifuge according to the present invention includes a rotor, a driving source that rotates the rotor, a rotating shaft that links the rotor with the driving source, an acceleration sensor, and a control unit. The acceleration sensor outputs a value indicating acceleration in at least two different directions which are orthogonal to an axial direction of the rotating shaft. The control unit obtains a displacement conversion value corresponding to a value, which is obtained by dividing a value which is proportional to acceleration based on a value indicating acceleration and outputted by the acceleration sensor, by a value which is proportional to a square of an angular velocity of the rotor, and stops rotation of the rotor when the displacement conversion value satisfies a displacement determination criterion which is predetermined and indicates that displacement is large.

    CENTRIFUGAL FIELD-FLOW FRACTIONATION DEVICE INCLUDING ARC-SHAPED CHANNEL MEMBER

    公开(公告)号:US20230201842A1

    公开(公告)日:2023-06-29

    申请号:US18117074

    申请日:2023-03-03

    Inventor: Kengo AOKI

    CPC classification number: B04B1/02 B03B5/32 B04B11/02 B04B13/00

    Abstract: Provided is a centrifugal field-flow fractionation device capable of suppressing deformation of a channel member. Pressure in a channel formed inside the channel member in a centrifugal field-flow fractionation device 1 is increased by a pressure increasing mechanism 8 provided downstream of the centrifugal field-flow fractionation device 1. In this manner, an inner surface of the channel is pressed outward by a liquid sample in the channel, and an outer peripheral surface and an inner peripheral surface of the channel member can be suppressed from being recessed toward the channel side.

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