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19 条记录 (耗时 0.024 秒)

    Positional indicia misplacement compensation
    11.
    发明授权
    Positional indicia misplacement compensation 有权
    位置标记错位补偿

    公开(公告)号：US07782003B2

    公开(公告)日：2010-08-24

    申请号：US11592340

    申请日：2006-11-03

    申请人： Thomas O. Melrose

    发明人： Thomas O. Melrose

    IPC分类号： G05B1/06

    CPC分类号： G05B19/251 ,  G05B2219/41203 ,  G05B2219/41207

    摘要： Apparatus and method for compensating for positional indicia misplacements in the positioning of a control object, such as with servo seam misplacements on a data storage device storage medium. An actual position for the control object is determined in relation to a corrected commanded position of the control object and a corrected position error of the control object. The corrected commanded position is determined in relation to a gain error and an actual commanded position, and the corrected position error determined in relation to the gain error and an actual position error. Preferably, an actual position error of the control object is next determined in relation to the actual position, and the control object is moved to reduce the actual position error. The positional indicia preferably comprise AB and CD seams of ABCD servo dibit patterns on a recording surface.

    摘要翻译： 用于补偿控制对象的定位中的位置标记错位的装置和方法，例如在数据存储设备存储介质上的伺服接缝错位。 控制对象的实际位置是根据控制对象的校正命令位置和控制对象的校正位置误差来确定的。 相对于增益误差和实际指令位置确定校正的指令位置，并且相对于增益误差和实际位置误差确定校正的位置误差。 优选地，接下来相对于实际位置确定控制对象的实际位置误差，移动控制对象以减少实际位置误差。 位置标记优选地包括在记录表面上的ABCD伺服双位图案的AB和CD接缝。

    LEAD-LAG FILTER ARRANGEMENT FOR ELECTRO-PNEUMATIC CONTROL LOOPS
    12.
    发明申请
    LEAD-LAG FILTER ARRANGEMENT FOR ELECTRO-PNEUMATIC CONTROL LOOPS 有权
    用于电动气动控制杆的引线过滤器布置

    公开(公告)号：US20090326682A1

    公开(公告)日：2009-12-31

    申请号：US12556036

    申请日：2009-09-09

    申请人： Kenneth W. Junk ,  Annette L. Latwesen

    发明人： Kenneth W. Junk ,  Annette L. Latwesen

    IPC分类号： G05D7/00 ,  G05B19/18 ,  G05B15/00

    CPC分类号： G05B19/0423 ,  G05B13/024 ,  G05B19/44 ,  G05B2219/41203 ,  G05B2219/41304 ,  G05D16/2013

    摘要： A lead-lag input filter is connected ahead of a positioner feedback loop having one or more valve accessories, such as a volume booster or a QEV, to overcome slow dynamics experienced by the accessories when receiving low amplitude change control or set point signals. A user interface is connected to the lead-lag input filter and enables an operator or other control personnel to view and change the operating characteristics of the lead-lag input filter to thereby provide the control loop with any of a number of desired response characteristics.

    摘要翻译： 引导滞后输入滤波器连接在具有一个或多个阀附件（例如音量增强器或QEV）的定位器反馈回路之前，以克服附件在接收低幅度变化控制或设定点信号时经历的慢动力。 用户接口连接到超前滞后输入滤波器，使操作员或其他控制人员可以查看和改变超前滞后输入滤波器的工作特性，从而为控制回路提供多种所需响应特性中的任何一种。

    Lead-lag input filter arrangement for electro-pneumatic control loops
    13.
    发明授权
    Lead-lag input filter arrangement for electro-pneumatic control loops 有权
    用于电动气动控制回路的超前滞后输入滤波器装置

    公开(公告)号：US07593802B2

    公开(公告)日：2009-09-22

    申请号：US10595116

    申请日：2006-04-04

    申请人： Kenneth W. Junk ,  Annette L. Latwesen

    发明人： Kenneth W. Junk ,  Annette L. Latwesen

    IPC分类号： G05B15/00

    CPC分类号： G05B19/0423 ,  G05B13/024 ,  G05B19/44 ,  G05B2219/41203 ,  G05B2219/41304 ,  G05D16/2013

    摘要： A lead-lag input filter is connected ahead of a positioner feedback loop having one or more valve accessories, such as a volume booster or a QEV, to overcome slow dynamics experienced by the accessories when receiving low amplitude change control or set point signals. A user interface is connected to the lead-lag input filter and enables an operator or other control personnel to view and change the operating characteristics of the lead-lag input filter to thereby provide the control loop with any of a number of desired response characteristics.

    摘要翻译： 引导滞后输入滤波器连接在具有一个或多个阀附件（例如音量增强器或QEV）的定位器反馈回路之前，以克服附件在接收低幅度变化控制或设定点信号时经历的慢动力。 用户接口连接到超前滞后输入滤波器，使操作员或其他控制人员可以查看和改变超前滞后输入滤波器的工作特性，从而为控制回路提供多种所需响应特性中的任何一种。

    Automatic phase margin compensation control circuit and method for disk drives
    14.
    发明授权
    Automatic phase margin compensation control circuit and method for disk drives 失效
    自动相位裕量补偿控制电路及磁盘驱动方式

    公开(公告)号：US5306994A

    公开(公告)日：1994-04-26

    申请号：US865994

    申请日：1992-04-09

    申请人： Louis Supino

    发明人： Louis Supino

    IPC分类号： G05B13/02 ,  G05B19/35 ,  G05B13/04

    CPC分类号： G11B5/5547 ,  G05B13/0225 ,  G05B19/351 ,  G05B2219/41172 ,  G05B2219/41203

    摘要： A control circuit optimizes the track seeking operation of a disk drive by automatically adjusting the phase margin of a compensator circuit that generates a control signal used to drive the actuator of the disk drive to optimize the actual performance of the drive during track seeking operations. Parametric values of coefficients associated with the compensation circuit used for driving the head of the disk drive are adjusted responsive to the determination of the system phase margin to change the phase margin and bring it within a desired range. More specifically, the present invention provides a method and apparatus for automatically controlling the phase margin in a compensation control circuit for a disk drive having a head driven by an actuator. The head is driven with a control signal that is generated by a compensator circuit. Feedback from the head is employed to create a position signal, which is used to generate a position error signal. The position error signal is combined with a disturbance signal of predetermined frequency. The resulting signal is fed into the compensator circuit, which has a transfer function that can be expressed mathematically in terms of one or more coefficients. The phase margin of the system is computed by taking the phase difference between the disturbance signal and the component of the position error signal that has the same frequency as the disturbance signal. The values of the compensator circuit coefficient are adjusted to bring the phase margin within an acceptable range.

    摘要翻译： 控制电路通过自动调整补偿电路的相位裕度来优化磁盘驱动器的磁道寻找操作，该相位裕度产生用于驱动磁盘驱动器的致动器的控制信号，以在磁道寻道操作期间优化驱动器的实际性能。 响应于系统相位裕度的确定来调整与用于驱动磁盘驱动器的磁头的补偿电路相关联的系数的参数值，以改变相位裕度并将其带入期望的范围。 更具体地说，本发明提供了一种用于自动控制用于具有由致动器驱动的磁头的磁盘驱动器的补偿控制电路中的相位裕度的方法和装置。 磁头由补偿电路产生的控制信号驱动。 采用来自头部的反馈来产生位置信号，该位置信号用于产生位置误差信号。 位置误差信号与预定频率的干扰信号组合。 所得到的信号被馈送到补偿器电路中，该补偿器电路具有可根据一个或多个系数以数学方式表达的传递函数。 通过取干扰信号与频率与扰动信号相同的位置误差信号的分量之间的相位差来计算系统的相位裕度。 调整补偿器电路系数的值以使相位裕度在可接受的范围内。

    Numerical control device for a grinding machine
    15.
    发明授权
    Numerical control device for a grinding machine 失效
    磨床数控设备

    公开(公告)号：US5105137A

    公开(公告)日：1992-04-14

    申请号：US569863

    申请日：1990-08-20

    申请人： Ryuji Iijima

    发明人： Ryuji Iijima

    IPC分类号： B24B47/20 ,  B23Q15/00 ,  B24B47/25 ,  B24B49/18 ,  G05B19/18 ,  G05B19/23 ,  G05B19/404

    CPC分类号： G05B19/231 ,  G05B2219/33337 ,  G05B2219/41177 ,  G05B2219/41203 ,  G05B2219/45159 ,  G05B2219/45161

    摘要： A numerical control device for a grinding machine is equipped with a servo-motor which moves at least one of a spindle and a dresser. The spindle and/or the dresser moves relative to the dresser shaft center direction and the rotor shaft center direction. The numerical control device compensates an amount of servo lag using a target position compensation calculating circuit. A unit time target position is obtained by performing a track calculation at unit times on the basis of the amount of servo lag stored in a storage device. Feedback control of the servo motor is effected by calculating a compensated target position dependent on the unit time target position.

    摘要翻译： 一种用于研磨机的数字控制装置配有一个伺服电动机，该伺服电动机可以移动主轴和修整器中的至少一个。 主轴和/或修整器相对于修整器轴中心方向和转子轴中心方向移动。 数控装置使用目标位置补偿计算电路补偿伺服滞后量。 通过基于存储在存储装置中的伺服滞后量进行单位时间的轨迹计算来获得单位时间目标位置。 通过根据单位时间目标位置计算补偿目标位置来实现伺服电动机的反馈控制。

    Servovalve drive electronics improvements
    19.
    发明授权
    Servovalve drive electronics improvements 失效
    伺服阀驱动电子改进

    公开(公告)号：US4679591A

    公开(公告)日：1987-07-14

    申请号：US840402

    申请日：1986-03-17

    申请人： Dale N. Maue ,  Richard A. Lund

    发明人： Dale N. Maue ,  Richard A. Lund

    IPC分类号： G01M7/02 ,  F15B9/09 ,  F15B13/044 ,  G05B19/19

    CPC分类号： G05B19/19 ,  G05B2219/37133 ,  G05B2219/41156 ,  G05B2219/41203 ,  G05B2219/41278 ,  G05B2219/41309 ,  G05B2219/41423 ,  G05B2219/42032 ,  G05B2219/42033 ,  Y10T137/86405 ,  Y10T137/86622

    摘要： The present invention provides a circuit for obtaining higher accuracy and total system response for complex mechanical impedance loads, such as earthquake simulators, and in particular to compensate for limitations in controlling the actual valve spool displacement and adequately stabilizing and controlling it at high frequencies. The improvement circuit includes a state variable filter to extend the band width of servovalve actuation frequencies by adding a lead compensation signal compensating for servovalve hydraulic responses. The output of the first filter circuit then in turn feeds a summing junction where the spool displacement feedback is provided, and the output of the summing junction or circuit is provided with the output from an additional filter which cleans up the signal by filtering out noise and insures that the phase of stabilizing signals is proper. The final input signal that is then fed into a unique drive system utlizing two amplifiers connected as current pumps to independently drive the electrical motor coils that in turn drive the valve spool to insure adequate current for driving the spool in opposite directions at high frequencies.

    摘要翻译： 本发明提供了一种用于为诸如地震模拟器的复杂机械阻抗负载获得更高精度和总系统响应的电路，并且特别地用于补偿控制实际阀芯位移并在高频下充分稳定和控制它的限制。 改进电路包括状态变量滤波器，通过增加补偿伺服阀液压响应的引导补偿信号来扩展伺服阀驱动频率的带宽。 第一滤波器电路的输出然后进给馈线，其中提供线轴位移反馈，并且求和结或电路的输出提供有来自附加滤波器的输出，滤波器滤除掉噪声并清除信号， 确保稳定信号的相位是正确的。 最后的输入信号然后被馈送到独特的驱动系统中，利用连接成当前泵的两个放大器来独立地驱动电动机线圈，该电动机线圈又驱动阀芯以确保足够的电流以在高频下以相反的方向驱动线轴。