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    Feedback control system
    1.
    发明授权
    Feedback control system 失效
    反馈控制系统

    公开(公告)号：US3652942A

    公开(公告)日：1972-03-28

    申请号：US3652942D

    申请日：1971-01-18

    Applicant: LUMMUS CO

    Inventor： O'CONNOR WARD F ,  VLIET WILLIAM GEORGE VAN

    IPC: G05B11/42 ,  G06G7/66 ,  G06G7/18

    CPC classification number: G06G7/66 ,  G05B11/42

    Abstract: A feedback control system including differentiating means and integrating means is disclosed in accordance with the teachings of the present invention wherein the effective time constants of the differentiating means and the integrating means are simultaneously modified in accordance with a single adjusting means such that said time constants maintain a constant relationship with respect to each other. The single adjusting means includes variable proportioning means for producing a signal proportional to an input signal such that the ratio of proportionality between the produced signal and the input signal is adapted to be altered, and reciprocal means supplied with said input signal such that said relationship is equal to the reciprocal of said ratio of proportionality. The produced signal and the generated signal are applied to the differentiating means and the integrating means whereby the effective time constants thereof are modified in accordance with said ratio of proportionality. The sensitivity of the feedback control system may be modified by second adjusting means.

    Abstract translation: 根据本发明的教导，公开了一种包括微分装置和积分装置的反馈控制系统，其中根据单一调节装置同时修改微分装置和积分装置的有效时间常数，使得所述时间常数保持 彼此之间的关系不断。 单个调节装置包括用于产生信号的可变比例装置

    Feedback control apparatus
    3.
    发明授权
    Feedback control apparatus 失效
    反馈控制装置

    公开(公告)号：US3699989A

    公开(公告)日：1972-10-24

    申请号：US3699989D

    申请日：1970-06-18

    Applicant: LUMMUS CO

    Inventor： O'CONNOR WARD F ,  VLIET WILLIAM GEORGE VAN

    IPC: G05B13/04 ,  G05B11/42

    CPC classification number: G05B13/04 ,  Y10T137/2452 ,  Y10T137/7761

    Abstract: Apparatus for controlling the operation of a device is disclosed in accordance with the teachings of the present invention wherein the actual operation of the device is detected by detecting means and compared to a predetermined standard of performance. Indications of the variance between the actual operation of the device and the predetermined standard of performance are utilized by control function generating means to generate a device control function which adjusts the operation of the device such that the variance is reduced to zero. The device control function is additionally applied to device simulating means which simulates the response of the device to the device control function and generates a simulating function representative of that response. The control function generating means combines the simulating function with the indicated variance to produce the control function which includes a substantially noise-free component indicative of the rate of change of the operation of the device thereby anticipating the future operation of the device.

    Method and apparatus for the suppression of noise in process control systems
    4.
    发明授权
    Method and apparatus for the suppression of noise in process control systems 失效
    在过程控制系统中抑制噪声的方法和装置

    公开(公告)号：US3611145A

    公开(公告)日：1971-10-05

    申请号：US3611145D

    申请日：1968-08-05

    Applicant: LUMMUS CO

    Inventor： O'CONNOR WARD F

    IPC: F15B21/00 ,  H03G11/08 ,  H04B1/10

    CPC classification number: H03G11/08 ,  F15B21/00

    Abstract: A method of noise suppression and the apparatus therefor is provided wherein the distinctive rate of change of the noise signal is relied upon to achieve the isolation and suppression thereof. In one embodiment of the disclosed invention, the composite waveform including the noise and information component signals is applied to both a linear and a nonlinear signal transfer means. The nonlinear transfer means is designed so that it will only pass the entire magnitude of signal components having a relatively high rate of change and thus only the noise component is wholly passed thereby. Thereafter, the isolated noise component signal is subtracted from the composite waveform as passed by the linear transfer means and a substantially noisefree information signal is thereby obtained.

    Web tracking and control
    6.
    发明授权
    Web tracking and control 失效
    WEB跟踪和控制

    公开(公告)号：US3570624A

    公开(公告)日：1971-03-16

    申请号：US3570624D

    申请日：1966-06-27

    Applicant: LUMMUS CO

    Inventor： O'CONNOR WARD F

    IPC: B65H23/02 ,  B65H25/02

    CPC classification number: B65H23/0204 ,  Y10S181/40

    Abstract: The invention relates to a method of and apparatus for automatically measuring the sideway displacement of a continuous web. In accordance with the invention, one or more sound wave paths which are variably attenuated by sideway displacement of one or more edges of a continuous and moving web are used to automatically measure the amount and direction of such sideway displacement of the web. In one of the embodiments, two sound wave paths are each translated into separate electrical voltages having a magnitude corresponding to the magnitude of the sound wave and a polarity identifying the particular sound path. The difference in the magnitudes of the voltages and the polarity thereof are measured to indicate the amount and direction respectively, of the sideway displacement of the web.

    Fluidic jet positioner
    9.
    发明授权
    Fluidic jet positioner 失效
    流体喷射定位器

    公开(公告)号：US3908471A

    公开(公告)日：1975-09-30

    申请号：US14115671

    申请日：1971-05-07

    Applicant: LUMMUS CO

    Inventor： O'CONNOR WARD F ,  CRAWFORD ERNEST A

    IPC: F15B9/06 ,  F15B9/16 ,  F15C3/12 ,  F15B5/00 ,  F16J3/04

    CPC classification number: F15B9/06 ,  F15B9/16 ,  F15C3/12 ,  Y10T137/2322

    Abstract: A frictionless fluid-mechanical transducer system for establishing and maintaining the position of a fluid jet nozzle within a pressure chamber. A very small force, applied to a lever external to the pressure chamber, is transmitted through a novel, frictionless linkage system to position a jet nozzle between a pair of fluid outlets thereby proportioning the flow of a pressurized fluid from the jet nozzle between the outlets.

    Abstract translation: 一种用于建立和维持流体喷嘴在压力室内的位置的无摩擦的流体 - 机械换能器系统。 施加到压力室外部的杠杆的非常小的力被传递通过一种新颖的无摩擦联动系统以将喷嘴定位在一对流体出口之间，从而将来自喷嘴的加压流体的流量与出口 。

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