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12 条记录 (耗时 0.021 秒)

    Load actuating servomechanism with resonance equalization
    1.
    发明授权
    Load actuating servomechanism with resonance equalization 失效
    具有谐振均衡的负载致动伺服机构

    公开(公告)号：US4295081A

    公开(公告)日：1981-10-13

    申请号：US866394

    申请日：1978-01-06

    申请人： William J. Bigley, Jr. ,  Vincent J. Rizzo

    发明人： William J. Bigley, Jr. ,  Vincent J. Rizzo

    IPC分类号： G05B5/01 ,  H02P23/00 ,  H02P5/00

    CPC分类号： G05B5/01 ,  H02P23/16 ,  Y10S388/902 ,  Y10S388/91 ,  Y10S388/922

    摘要： Load actuating servomechanism apparatus includes dynamic regeneration to equalize and overcome a frequency-varying load/load drive train mechanical resonance. The drive circuitry comprises a per se conventional primary motor speed controlling rate feedback loop including a cascaded rate signal command source, summing error-signal producing node, and loop frequency response shaping filter and driver amplifier for exciting a load driving motor, and a rate tachometer signal feedback element connecting a measure of the motor output speed to a subtractive input of the summing node.To broaden the response band of the primary feedback circuit and accommodate a mechanical resonance otherwise interfering therewith, a secondary, positive feedback path supplements the input rate command with a signal dependent upon motor current, and thus upon motor load. Accordingly, output load drive automatically increases as motor current increases when a load drive retarding mechanical resonance is encountered.

    摘要翻译： 负载致动伺服机构包括动态再生以均衡和克服变频负载/负载传动系机械共振。 驱动电路包括一个传统的主电机速度控制速率反馈回路，包括级联速率信号指令源，求和误差信号产生节点和环路频率响应整形滤波器以及用于激励负载驱动电机的驱动器放大器，速率转速计 信号反馈元件将电动机输出速度的量度连接到求和节点的减法输入。 为了扩大初级反馈电路的响应频带并适应另外干扰的机械谐振，次级正反馈路径用取决于电机电流的信号补偿输入速率指令，并因此补偿电机负载。 因此，当遇到负载驱动延迟机械共振时，输出负载驱动自动增加，因为电动机电流增加。

    Servomechanism rate control system with compensation for motor-tachometer resonance
    2.
    发明授权
    Servomechanism rate control system with compensation for motor-tachometer resonance 失效
    伺服力学速率控制系统，补偿电机转速计共振

    公开(公告)号：US4215298A

    公开(公告)日：1980-07-29

    申请号：US916299

    申请日：1978-06-16

    申请人： Bigley William J. ,  Vincent J. Rizzo

    发明人： Bigley William J. ,  Vincent J. Rizzo

    IPC分类号： H02P23/00 ,  H02P5/00

    CPC分类号： H02P23/16 ,  Y10S388/91 ,  Y10S388/918 ,  Y10S388/922

    摘要： A rate-control servomechanism includes a load driving motor and a tachometer mounted on the motor shaft to produce a feedback signal hich corresponds to the rotational speed of the motor. An additional signal corresponding to the motor current is added to the tachometer feedback signal to compensate for the resonance-like effects resulting from the inductive coupling between the motor and tachometer windings.

    摘要翻译： 速率控制伺服机构包括负载驱动电机和安装在电动机轴上的转速计，以产生对应于电动机的转速的反馈信号。 对应于电动机电流的附加信号被添加到转速计反馈信号中，以补偿由电动机和转速计绕组之间的电感耦合产生的类似谐振的影响。

    Ballast circuit for gaseous discharge lamp
    3.
    发明授权
    Ballast circuit for gaseous discharge lamp 失效
    气体放电灯镇流器电路

    公开(公告)号：US5023518A

    公开(公告)日：1991-06-11

    申请号：US283255

    申请日：1988-12-12

    申请人： Wayne K. Mans ,  Vincent J. Rizzo

    发明人： Wayne K. Mans ,  Vincent J. Rizzo

    IPC分类号： H05B41/285 ,  H05B41/36 ,  H05B41/38 ,  H05B41/44

    CPC分类号： H05B41/44 ,  H05B41/2858 ,  H05B41/36 ,  H05B41/38 ,  Y10S315/04 ,  Y10S315/07

    摘要： A ballast circuit for a gaseous discharge lamp, particularly a neon light, includes a diode bridge rectifier for producing a d-c voltage from an a-c input and a transformer with a secondary winding connected to the lamp and a primary winding connected to the rectifier. A switching circuit is connected to the transformer primary winding for controlling a flow of current therethrough from the rectifier. The switching circuit includes at least one MOSFET having a drain terminal connected to the transformer primary winding and a grounded source terminal. A control circuit is connected to a gate terminal of the MOSFET for controlling the on and off times thereof, the control circuit including a pulse generator for producing a train of pulse-width-modulated rectangular pulses of substantially a single frequency fed to the MOSFET's gate terminal. The pulse generator includes circuitry for changing the width of the rectangular pulses to enable a gradual energization of the gaseous discharge lamp from one end thereof towards an opposite end to create a writing effect of selectively different speeds in the gaseous discharge lamp. The circuitry in the pulse generator for changing the pulse width can be used to control the widths of the pulses so that the pulses are a train of square waves having a common duration equal to an interpulse period, whereby striations are generated in the gaseous discharge lamp.

    摘要翻译： 用于气体放电灯，特别是霓虹灯的镇流器电路包括用于从a-c输入端产生d-c电压的二极管桥式整流器和连接到灯的次级绕组的变压器和连接到整流器的初级绕组。 开关电路连接到变压器初级绕组，用于控制从整流器流过的电流。 开关电路包括至少一个MOSFET，其具有连接到变压器初级绕组的漏极端子和接地的源极端子。 控制电路连接到MOSFET的栅极端子，用于控制其导通和关断时间，该控制电路包括脉冲发生器，用于产生基本上单个频率的脉冲宽度调制的矩阵脉冲序列，馈送到MOSFET的栅极 终奌站。 脉冲发生器包括用于改变矩形脉冲的宽度的电路，以使气态放电灯从其一端向相对端逐渐通电，从而产生在气体放电灯中选择性地不同速度的写入效应。 用于改变脉冲宽度的脉冲发生器中的电路可以用于控制脉冲的宽度，使得脉冲是具有等于脉冲间周期的公共持续时间的一串方波，从而在气体放电灯中产生条纹 。

    System and method for identifying fluids and monitoring fluid quality in a vessel
    4.
    发明授权
    System and method for identifying fluids and monitoring fluid quality in a vessel 有权
    用于识别流体并监测容器中的流体质量的系统和方法

    公开(公告)号：US08746045B2

    公开(公告)日：2014-06-10

    申请号：US13086958

    申请日：2011-04-14

    申请人： Carlos E. Carvalho ,  John L. Sinnamon ,  Thomas Miskell ,  Vincent J. Rizzo

    发明人： Carlos E. Carvalho ,  John L. Sinnamon ,  Thomas Miskell ,  Vincent J. Rizzo

    IPC分类号： G01N11/00 ,  G01F17/00

    CPC分类号： G01N27/02 ,  G01F23/284 ,  G01N22/04 ,  G01N33/2847

    摘要： Methods and systems are disclosed for using time domain reflectometry to determine the identity of a fluid in a vessel, and to determine whether the quality of a fluid in a vessel is within acceptable parameters. Methods include identifying a fluid by comparing a derived characteristic of a fluid to a reference characteristic, determining the quality of a fluid by determining if a derived characteristic is within an acceptable quality range, monitoring a fluid for a dynamic change in quality or state, and identifying a fluid by comparing a transition reflection waveform to a reference signature transition. The methods are implemented in systems for identifying a fluid layer in a vessel, such as fuel, free liquid water or ice, detecting misfueling or fuel contamination, and detecting fluid state changes, such as the formation of ice.

    摘要翻译： 公开了使用时域反射测定来确定容器中的流体的身份并确定容器中的流体质量是否在可接受参数内的方法和系统。 方法包括通过将流体的导出特征与参考特征进行比较来确定流体，通过确定导出的特征是否在可接受的质量范围内来确定流体的质量，监测流体以获得质量或状态的动态变化，以及 通过将过渡反射波形与参考特征转换进行比较来识别流体。 该方法在用于识别容器中的流体层（例如燃料，游离液体水或冰），检测不充分或燃料污染以及检测流体状态变化（例如冰的形成）的系统中实施。

    SYSTEM AND METHOD FOR IDENTIFYING FLUIDS AND MONITORING FLUID QUALITY IN A VESSEL
    5.
    发明申请
    SYSTEM AND METHOD FOR IDENTIFYING FLUIDS AND MONITORING FLUID QUALITY IN A VESSEL 有权
    用于识别流体和监测流体质量的系统和方法

    公开(公告)号：US20110246100A1

    公开(公告)日：2011-10-06

    申请号：US13086958

    申请日：2011-04-14

    申请人： Carlos E. Carvalho ,  John L. Sinnamon ,  Thomas Miskell ,  Vincent J. Rizzo

    发明人： Carlos E. Carvalho ,  John L. Sinnamon ,  Thomas Miskell ,  Vincent J. Rizzo

    IPC分类号： G01N27/02 ,  G06F19/00

    CPC分类号： G01N27/02 ,  G01F23/284 ,  G01N22/04 ,  G01N33/2847

    摘要： Methods and systems are disclosed for using time domain reflectometry to determine the identity of a fluid in a vessel, and to determine whether the quality of a fluid in a vessel is within acceptable parameters. Methods include identifying a fluid by comparing a derived characteristic of a fluid to a reference characteristic, determining the quality of a fluid by determining if a derived characteristic is within an acceptable quality range, monitoring a fluid for a dynamic change in quality or state, and identifying a fluid by comparing a transition reflection waveform to a reference signature transition. The methods are implemented in systems for identifying a fluid layer in a vessel, such as fuel, free liquid water or ice, detecting misfueling or fuel contamination, and detecting fluid state changes, such as the formation of ice.

    摘要翻译： 公开了使用时域反射测定来确定容器中的流体的身份并确定容器中的流体质量是否在可接受参数内的方法和系统。 方法包括通过将流体的导出特征与参考特征进行比较来确定流体，通过确定导出的特征是否在可接受的质量范围内来确定流体的质量，监测流体以获得质量或状态的动态变化，以及 通过将过渡反射波形与参考特征转换进行比较来识别流体。 该方法在用于识别容器中的流体层（例如燃料，游离液体水或冰），检测不充分或燃料污染以及检测流体状态变化（例如冰的形成）的系统中实施。

    Implant drug delivery device
    10.
    发明授权
    Implant drug delivery device 失效
    植入药物输送装置

    公开(公告)号：US5141748A

    公开(公告)日：1992-08-25

    申请号：US312084

    申请日：1989-02-17

    申请人： Vincent J. Rizzo

    发明人： Vincent J. Rizzo

    IPC分类号： A61K9/00

    CPC分类号： A61K9/0092 ,  A61K9/0024

    摘要： A drug delivery device for subcutaneous implantation in animals having the ability to deliver drug at a controlled rate over a prolonged period of time, comprising a rod shaped polymeric inner matrix with an elongated body and two ends, said matrix having solid particles of the drug to be delivered dispersed throughout the matrix and a polymeric outer membrane wherein the membrane is chemically bound to the surface of the elongated body of the matrix and methods for forming said device.

    摘要翻译： 一种用于皮下植入动物的药物递送装置，其具有在长时间内以受控速率递送药物的能力，包括具有细长体和两端的棒状聚合物内基质，所述基质具有药物的固体颗粒， 分散在整个基质和聚合物外膜中，其中膜与基质的细长体的表面化学结合，以及用于形成所述装置的方法。