Method and system for detecting bend in rotating shaft of magnetic bearing

    公开(公告)号:US10746527B2

    公开(公告)日:2020-08-18

    申请号:US15778526

    申请日:2016-09-20

    Abstract: Provided are a method and a system for detecting bend in the rotating shaft of magnetic bearing. The system comprises a first displacement sensor, a second displacement sensor, and a processor electrically connected with the first displacement sensor and the second displacement sensor; the processor comprises a calculating unit, a first judging unit and a second judging unit; the calculating unit is configured to calculate center positions of the rotating shaft stopping at different positions during rotating a circle; the first judging unit judges whether the rotating shaft is bent or not according to a curve of the changed center positions, and outputs a test result of qualification if the rotating shaft is not bent. Users are able to determine whether the rotating shaft needs to be processed or not, to avoid causing destructive effects on the magnetic bearing system due to excessive bend degree of the rotating shaft.

    SYSTEM AND METHOD FOR MEASURING ALIGNMENT ERRORS OF AXLES
    2.
    发明申请
    SYSTEM AND METHOD FOR MEASURING ALIGNMENT ERRORS OF AXLES 有权
    用于测量轴对准错误的系统和方法

    公开(公告)号:US20100171488A1

    公开(公告)日:2010-07-08

    申请号:US12663291

    申请日:2008-07-17

    CPC classification number: G01B7/31 G01B7/312

    Abstract: The invention concerns a system for measuring the alignment error of two axles provided with a first and a second coupling part by means of a biaxial orthogonal magnetic sensor system comprising a sensor and a magnet, wherein said sensor is designed to be placed on the first coupling part with its one direction of sensing oriented in one direction of magnetization of said magnet, which magnet is designed to be placed on the other coupling part and means for reading off an angle error and offset error independently of each other during the rotation of the axles on-line. The system moreover includes a reference sensor for determining said angle error and offset error orientation relative to a known direction.

    Abstract translation: 本发明涉及一种用于通过包括传感器和磁体的双轴正交磁传感器系统来测量设置有第一和第二耦合部分的两个轴的对准误差的系统,其中所述传感器设计成放置在第一耦合 其一个方向的感测方向定向在所述磁体的一个磁化方向上,该磁体被设计成放置在另一个耦合部分上,以及用于在轴的旋转期间彼此独立地读出角度误差和偏移误差的装置 线上。 该系统还包括用于确定相对于已知方向的所述角度误差和偏移误差取向的参考传感器。

    System for determining the exit direction of a flexible supply line from
an autonomous mobile unit
    3.
    发明授权
    System for determining the exit direction of a flexible supply line from an autonomous mobile unit 失效
    用于确定来自自主移动单元的柔性供应线的出口方向的系统

    公开(公告)号:US5703297A

    公开(公告)日:1997-12-30

    申请号:US683226

    申请日:1996-07-18

    Applicant: Rudolf Bauer

    Inventor: Rudolf Bauer

    Abstract: A system is provided for sensing an exit direction of a flexible supply line relative to an apparatus, such as robot or autonomous mobile unit. A method is also provided for planning the movement of such a unit based partly on such supply line direction data. The system includes a pressure sensor a least partially disposed around an exit opening through which the supply line is feedably guided. Upon contact at a given point on the sensor from the supply line, the sensor emits a signal corresponding to a particular exit direction. From this signal, a probable exit direction is inferred and a more precise movement planning is enabled, avoiding measurement errors that arise when the cable is run over can be avoided, or avoiding knottings of the cable.

    Abstract translation: 提供了一种用于感测柔性供应管线相对于诸如机器人或自主移动单元的装置的出口方向的系统。 还提供了一种用于基于这样的供应线方向数据来规划这种单元的移动的方法。 该系统包括压力传感器,该压力传感器至少部分地布置在出口周围,供给线通过该出口开放。 在传感器上的给定点处从供应线接触时,传感器发出对应于特定出口方向的信号。 从该信号中,可以推断可能的出口方向,并且启用更精确的运动规划,避免可以避免电缆运行时产生的测量误差,或避免电缆打结。

    System and method for measuring run-out and other characteristics of a
workpiece mounted on an engraver
    4.
    发明授权
    System and method for measuring run-out and other characteristics of a workpiece mounted on an engraver 失效
    用于测量安装在雕刻机上的工件的耗尽和其他特性的系统和方法

    公开(公告)号:US5652659A

    公开(公告)日:1997-07-29

    申请号:US541330

    申请日:1995-10-09

    CPC classification number: B41C1/04 G01B7/125 G01B7/312 Y10T409/30616

    Abstract: A method and apparatus for automatically measuring a cylinder characteristic, such as a cylinder diameter or a cylinder run-out and then automatically adjusting the engraver in response to the measurement and subsequently engraving the cylinder to account for such characteristic. The engraver includes a run-out detector for detecting a cylinder characteristic of the cylinder on the engraver, and the run-out detector includes an LVDT sensor and a run-out circuit for generating a signal generally corresponding to a shape of the cylinder surface. The run-out circuit is capable of generating a measured run-out using the signal generated by the LVDT sensor. The invention also provides a method and apparatus for automatically adjusting for the cylinder characteristic using manual, mechanical and/or electronic features of the invention.

    Abstract translation: 一种用于自动测量气缸特性的方法和装置,例如气缸直径或气缸跳动,然后响应于测量自动调节雕刻机,随后雕刻圆筒以考虑到这种特性。 雕刻机包括用于检测雕刻机上的圆柱体的气缸特性的漏气检测器,并且检测器包括用于产生大致对应于气缸表面形状的信号的LVDT传感器和漏气回路。 跳闸电路能够使用由LVDT传感器产生的信号产生测量的跳动。 本发明还提供一种用于使用本发明的手动,机械和/或电子特征自动调节气缸特性的方法和装置。

    Monitoring apparatus for rotating equipment dynamics for slow checking
of alignment using plural angled elements
    5.
    发明授权
    Monitoring apparatus for rotating equipment dynamics for slow checking of alignment using plural angled elements 失效
    用于旋转设备动态的监测装置,用于使用多个倾斜元件缓慢检查对准

    公开(公告)号:US5514952A

    公开(公告)日:1996-05-07

    申请号:US271215

    申请日:1994-07-05

    CPC classification number: G01B7/02 G01B7/31 G01B7/312

    Abstract: Axial alignment detection apparatus for a shaft rotatable about an axis includes alignment indicating means rotatable by the shaft and comprising a plurality of detectable elements; and detector means for detecting the elements and alignment of the shaft as a function of the elements; the elements comprising at least one reference element and at least one alignment dependent element, wherein the reference and alignment elements have a detectable alignment dependent relationship to each other.

    Abstract translation: 用于可围绕轴线旋转的轴的轴向对准检测装置包括可由轴旋转并且包括多个可检测元件的对准指示装置; 以及用于根据元件检测元件和轴的对准的检测器装置; 所述元件包括至少一个参考元件和至少一个取向依赖元件,其中所述参考和对准元件具有彼此可检测的对准依赖关系。

    Method and apparatus for non-contact hole eccentricity and diameter
measurement
    6.
    发明授权
    Method and apparatus for non-contact hole eccentricity and diameter measurement 失效
    非接触孔偏心和直径测量的方法和装置

    公开(公告)号:US5339031A

    公开(公告)日:1994-08-16

    申请号:US904620

    申请日:1992-06-26

    Inventor: Engmin J. Chern

    CPC classification number: G01B7/12 G01B7/012 G01B7/312

    Abstract: A method and apparatus for inserting an eddy current hole probe into a hole specimen and automatically moving the probe in two orthogonal (X, Y) directions in response to the impedance change of an eddy current coil located in the probe as a function of distance from the surface of the hole. The probe is centered in the hole by a system controller which operates to minimize the composite deviation value of the coil impedance. The diameter of the hole is then determined from the average impedance measurement. Following this, a plot of the hole eccentricity is generated by determining the impedance deviation from the average coil impedance value as a function of the angular rotation of the probe in the hole. Measurements of the hole eccentricity for a plurality of hole depths provides an indication of the hole eccentricity profile.

    Abstract translation: 一种用于将涡流孔探头插入孔样本中并根据位于探针中的涡流线圈的阻抗变化自动地沿两个正交(X,Y)方向移动探针的方法和装置,作为距离 孔的表面。 探头通过系统控制器在孔中居中,该系统控制器用于使线圈阻抗的复合偏差值最小化。 然后从平均阻抗测量确定孔的直径。 接下来,通过确定作为探针在孔中的角旋转的函数的平均线圈阻抗值的阻抗偏差来产生孔偏心的曲线图。 多个孔深度的孔偏心度的测量提供了孔偏心轮廓的指示。

    Concentricity evaluating system
    7.
    发明授权
    Concentricity evaluating system 失效
    同心评估系统

    公开(公告)号:US4441026A

    公开(公告)日:1984-04-03

    申请号:US315731

    申请日:1981-10-28

    CPC classification number: G01B11/272 G01B11/12 G01B5/0002

    Abstract: A concentricity evaluating system has a stage supported by a hydrostatic bearing in at least one of radial and thrust directions. The angle of rotation of the stage is detected by a rotation angle detector. On the stage a hollow cylindrical member is fixed coaxially. Onto the upper end face of the hollow cylindrical member or into the hole thereof a light beam is applied from a light emitting means, whereby a clear image of the profile of the hole is formed. The image thus formed is enlarged by an optical system. The light beam passing through the optical system reaches a photodiode array which is positioned across a part of the enlarged image. The hollow cylindrical member is rotated, and a displacement meter is detected how the circumference of the hollow cylindrical member varies as the member rotates. Data from the displacement meter, photodiode array and the rotation angle detector are fed to an interface and processed. The data thus processed are fed to a computer, which perform arithmetic operations on these data, thus evaluating the concentricity of the hollow cylindrical member.

    Abstract translation: 同心度评估系统具有在径向和推力方向中的至少一个中由静压轴承支撑的台阶。 通过旋转角度检测器检测台的旋转角度。 在舞台上,中空圆柱形构件被同轴地固定。 在中空圆柱形构件的上端面或其孔中,从发光装置施加光束,由此形成孔的轮廓的清晰图像。 这样形成的图像被光学系统放大。 通过光学系统的光束到达位于放大图像的一部分的光电二极管阵列。 中空圆柱形构件旋转,并且检测位移计如何随着构件旋转而中空圆柱形构件的圆周变化。 来自位移计,光电二极管阵列和旋转角度检测器的数据被馈送到接口并进行处理。 将这样处理的数据送入计算机,对这些数据执行算术运算,从而评估中空圆柱形构件的同心度。

    System for determining tube eccentricity
    9.
    发明授权
    System for determining tube eccentricity 失效
    用于确定管偏心率的系统

    公开(公告)号:US4099418A

    公开(公告)日:1978-07-11

    申请号:US772529

    申请日:1977-02-28

    CPC classification number: G01B7/06 G01B17/02 G01B5/252 G01B7/312

    Abstract: A system for continuously determining the eccentric characteristics of a tube wall, including a positioning assembly supported by the tube when it travels in its lengthwise direction. Two thickness sensors are supported by the positioning assembly and have sensing axes disposed in a predetermined angular relation with respect to one another about the periphery of the tube. The two sensors continuously measure the wall thickness of the tube at the predetermined angular locations as the tube moves in its lengthwise direction. Signal processing circuits are provided for continuously computing the eccentricity characteristics of the tube based entirely upon the comparative values of the thickness readings of the sensors.

    Abstract translation: 一种用于连续地确定管壁的偏心特性的系统,包括当管沿其长度方向行进时由管支撑的定位组件。 两个厚度传感器由定位组件支撑,并且具有相对于管的周边相对于彼此以预定角度关系设置的感测轴。 当管沿其长度方向移动时,两个传感器在预定角度位置连续地测量管的壁厚。 提供信号处理电路,用于完全基于传感器的厚度读数的比较值连续计算管的偏心特性。

    Process and apparatus for determining the position of an elongated
object with respect to a reference axis
    10.
    发明授权
    Process and apparatus for determining the position of an elongated object with respect to a reference axis 失效
    用于确定细长物体相对于参考轴线的位置的过程和装置

    公开(公告)号:US4088952A

    公开(公告)日:1978-05-09

    申请号:US685974

    申请日:1976-05-13

    Applicant: Harald Sikora

    Inventor: Harald Sikora

    Abstract: A process and apparatus for determining the position of elongated objects such as insulated cable, tubing, and the like, with respect to a reference axis, for example, that of a vulcanizing tube in which a localized magnetic alternating field is produced around a specified section of the object and the intensity of the magnetic field produced by the current induced in the object is diametrically measured at a distance from this section. A signal proportional to the sum of measured field intensities is used to regulate the field strength of the localized magnetic field so that a signal proportional to the difference of the measured field intensities becomes an indication of the absolute position of the object with respect to the reference axis.

    Abstract translation: 用于确定细长物体(例如绝缘电缆,管道等)相对于参考轴线的位置的方法和装置,例如硫化管的位置,其中在特定部分周围产生局部磁性交变场 并且在距离该部分的距离处径向地测量由在物体中感应的电流产生的磁场的强度。 使用与测得的场强的和成比例的信号来调节局部磁场的场强,使得与测得的场强的差成比例的信号成为对象相对于参考的绝对位置的指示 轴。

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