公开(公告)号：US06310454B1

公开(公告)日：2001-10-30

申请号：US09188402

申请日：1998-11-06

申请人： Robert L. Moran ,  James L. Flesher

发明人： Robert L. Moran ,  James L. Flesher

IPC分类号： G05B1101

CPC分类号： G05B13/027

摘要： An apparatus for precisely controlling the feed rate of a feeder comprises: a motor operatively connected to the feeder to cause dispensing of the feeder when the motor is driven; a control circuit for supplying, when actuated, an AC voltage supply to the motor for driving of the motor; a counter disposed in communication with the control circuit for actuation thereof when an overflow signal is generated by the counter; a latch controller disposed in communication with the counter for enablement and disablement of the counter, the latch controller disabling the counter when the overflow signal is generated by the counter; a detector connected to the AC voltage supply for detecting when the AC voltage crosses over a median voltage thereof, the detector further disposed in communication with the latch controller for enablement of the counter when the median voltage is detected; and a fuzzy logic controller disposed in communication with the counter for generating an output to the counter that loads a determined count into the counter such that the counter generates an overflow signal within a time interval equal to a determined percentage of the half period of the AC voltage. The control circuit includes a pair of silicon control rectifiers disposed in parallel but reversed to one another resulting in each silicon control rectifier being able to supply the AC voltage to the motor during opposite half periods of a time period of the AC voltage if continuously actuated.

摘要翻译： 一种用于精确控制进料器的进给速率的装置，包括：马达，其可操作地连接到所述进料器，以在所述马达被驱动时引起所述进料器的分配; 控制电路，用于在致动时向所述电动机供应AC电压以驱动所述电动机; 当由计数器产生溢出信号时，与控制电路通信的计数器，用于致动; 锁存器控制器，设置成与计数器通信，用于启用和禁用计数器;锁存器控制器在计数器产生溢出信号时禁止计数器; 连接到所述AC电压源的检测器，用于检测所述AC电压何时超过其中间电压，所述检测器进一步设置为与所述锁存器控制器通信，以在检测到所述中值电压时启用所述计数器; 以及设置成与计数器通信的模糊逻辑控制器，用于产生计数器的输出，该计数器将确定的计数加载到计数器中，使得计数器在等于AC的半周期的确定百分比的时间间隔内产生溢出信号 电压。 控制电路包括一对并联布置但彼此反向的硅控制整流器，导致每个硅控制整流器能够在连续致动的AC电压的时间段的相反的半个周期期间将电压提供给电动机。

公开(公告)号：US4086591A

公开(公告)日：1978-04-25

申请号：US728109

申请日：1976-09-28

申请人： Kazimierz Siwiak ,  Robert L. Moran

发明人： Kazimierz Siwiak ,  Robert L. Moran

IPC分类号： H01Q1/40 ,  H01Q17/00 ,  H01Q19/06 ,  H01Q1/42

CPC分类号： H01Q1/405 ,  H01Q17/001 ,  H01Q19/06

摘要： A device for reducing the backlobe radiation from small aperture antennas is shown to comprise a thin hemispherical radome having both radio frequency energy absorbing and reflecting materials attached thereto. The absoring material dissipates a portion of the edge currents existing on the antenna aperture, while the reflecting material intercepts a portion of the energy radiated from the antenna and reflects that portion back to the edge of the antenna to produce destructive interference with the edge currents.

摘要翻译： 用于减小小孔径天线的背景辐射的装置被示为包括具有附接到其上的射频能量吸收和反射材料的薄的半球形天线罩。 吸收材料耗散存在于天线孔径上的边缘电流的一部分，而反射材料拦截从天线辐射的能量的一部分，并将该部分反射回天线的边缘，以产生与边缘电流的破坏性干扰。

公开(公告)号：US06181288B2

公开(公告)日：2001-01-30

申请号：US05727732

申请日：1976-09-29

申请人： Alex Ivanov ,  Robert L. Moran ,  Troy E. Plunk

发明人： Alex Ivanov ,  Robert L. Moran ,  Troy E. Plunk

IPC分类号： H01Q1900

CPC分类号： H01Q1/42 ,  H01Q15/242 ,  H01Q21/061

摘要： A polarization compensating device useful in correcting radome-induced polarization errors in a linearly polarized antenna in a missile is described.

摘要翻译： 描述了一种用于校正导弹中线性极化天线雷达天线雷达极化误差的极化补偿装置。

公开(公告)号：US4233608A

公开(公告)日：1980-11-11

申请号：US727731

申请日：1976-09-29

申请人： Robert L. Moran ,  Francis J. O'Hara

发明人： Robert L. Moran ,  Francis J. O'Hara

IPC分类号： H01Q13/06 ,  H01Q13/18 ,  H01Q21/00

CPC分类号： H01Q13/06 ,  H01Q13/18

摘要： A broadband antenna element capable of operating over greater than an octave band of frequencies is disclosed. The element comprises an open-ended rectangular waveguide section having a loop radiator, formed by shorting an insulated probe to one of the broad walls of the waveguide section, disposed therein. Notches are provided in the narrow walls and flanges are provided on the broad walls of the waveguide section for matching purposes. The insulated probe extends through a hole formed in the rear wall of the waveguide section to connect with a stripline feed network.

摘要翻译： 公开了能够在大于八度频带的频带上工作的宽带天线元件。 该元件包括具有环形散热器的开放式矩形波导部分，其通过将绝缘探针短路到设置在其中的波导部分的一个宽壁而形成。 在狭窄的壁中设置凹口，并且为了匹配目的，在波导部分的宽壁上设置凸缘。 绝缘探针延伸穿过形成在波导部分的后壁中的孔，以与带状馈线网络连接。