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    • 5. 发明授权
    • Centrifugal separator and a method of detecting unbalance of a rotor
    • 离心分离器和检测转子不平衡的方法
    • US5738622A
    • 1998-04-14
    • US651590
    • 1996-05-22
    • Yoshitaka NiinaiShoji KusumotoTsutomu TakamuraNoriyasu Matsufuji
    • Yoshitaka NiinaiShoji KusumotoTsutomu TakamuraNoriyasu Matsufuji
    • G01M1/22B04B9/14B04B13/00
    • B04B9/146
    • A centrifugal separator comprising: a rotor for containing a sample; a rotating unit; a detection circuit for detecting a distance between a reference position and a position of the rotor and generating a distance detection signal; a rectifying circuit for half-wave rectifying the distance detection signal; a judging circuit for judging the distance detection signal from the rectifying circuit; and a controller for controlling the rotating unit in accordance with a judging result of the judging circuit and a corresponding method are disclosed. The judging circuit judges whether the distance is in a balanced condition of or an unbalance condition of the rotor. A centrifugal separator comprising: the rotor; the rotating unit; a detection circuit, having a given detection range, for detecting a distance between a reference position and a position of the rotor and generating the distance detection signal, the given range covering a deflection range of the rotor due to whirling on the side of the detection circuit with respect to a rotational axis of the rotor; the judging circuit for judging the detection signal and the controller for controlling the rotating unit and a corresponding method are also disclosed. The detection range may be assigned to an inhibit deflection range due to whirling of the rotor.
    • 一种离心分离器,包括:用于容纳样品的转子; 旋转单元 检测电路,用于检测基准位置与转子的位置之间的距离并产生距离检测信号; 用于半波整流距离检测信号的整流电路; 判断电路,用于判断来自整流电路的距离检测信号; 并且公开了根据判断电路的判断结果来控制旋转单元的控制器和相应的方法。 判断电路判断距离是否在转子的平衡状态或不平衡状态。 一种离心分离器,包括:转子; 旋转单元; 具有给定检测范围的检测电路,用于检测基准位置和转子位置之间的距离并产生距离检测信号,所述给定范围覆盖由于检测侧的旋转引起的转子偏转范围 相对于转子的旋转轴线的电路; 还公开了用于判断检测信号的判断电路和用于控制旋转单元的控制器以及相应的方法。 由于转子的旋转,检测范围可能被分配到禁止偏转范围。
    • 7. 发明授权
    • Centrifuge with imbalance detector
    • 离心机与不平衡检测器
    • US07255669B2
    • 2007-08-14
    • US10960716
    • 2004-10-08
    • Takahiro ShimizuYoshitaka NiinaiShoji KusumotoHiroyuki Takahashi
    • Takahiro ShimizuYoshitaka NiinaiShoji KusumotoHiroyuki Takahashi
    • B04B9/10B04B13/00
    • B04B9/146B04B5/0421
    • A centrifuge includes a frame, a damper connected to and supported on the frame for isolating vibrations, a drive unit connected to and supported by the damper, a swing-bucket rotor rotated by the drive unit, an accelerometer for detecting when part of the drive unit contacts part of the frame due to vibrations of the drive unit exceeding a predetermined amplitude, and a control unit for controlling the drive unit based on output from the accelerometer. When amplitude of vibrations in the drive unit exceeds a predetermined value, a portion of the drive unit contacts a portion of the frame. The accelerometer detects an impact caused by the contact between the drive unit and the frame. The drive unit is halted when output detected from the accelerometer exceeds a threshold value for detecting imbalances.
    • 离心机包括框架,连接并支撑在框架上用于隔离振动的阻尼器,与阻尼器连接并由阻尼器支撑的驱动单元,由驱动单元旋转的回转 - 转子转子,加速度计,用于检测驱动器的一部分 单元接触由于驱动单元的振动超过预定振幅的框架的一部分,以及控制单元,用于基于来自加速度计的输出来控制驱动单元。 当驱动单元的振动幅度超过预定值时,驱动单元的一部分接触框架的一部分。 加速度计检测由驱动单元和框架之间的接触引起的冲击。 当从加速度计检测到的输出超过用于检测不平衡的阈值时,驱动单元停止。