公开(公告)号：US06520031B2

公开(公告)日：2003-02-18

申请号：US09935374

申请日：2001-08-22

申请人： Asad M. Madni ,  Jim B. Vuong ,  Robert K. Hansen

发明人： Asad M. Madni ,  Jim B. Vuong ,  Robert K. Hansen

IPC分类号： G01L312

CPC分类号： G01L3/109 ,  G01D5/2053 ,  G01L3/105

摘要： A non contacting angular differential displacement torque sensor utilizes a split shaft with a connecting torsion bar with a pair of receive disks each with an intervening coupler disk carrying a conductive attenuating pattern where the inductive coupling between transmit and receive disks is individually attenuated in accordance with the angular position of the shaft on which the disks are mounted. The pair of receive disks which receive signals from a common transmitter have their angular difference taken and this is the actual torque on the shaft.

公开(公告)号：US5345239A

公开(公告)日：1994-09-06

申请号：US219825

申请日：1988-06-16

申请人： Asad M. Madni ,  Lawrence Wan

发明人： Asad M. Madni ,  Lawrence Wan

IPC分类号： G01S7/38 ,  H03D7/00 ,  H03D7/12 ,  H03D7/14 ,  H03D9/06 ,  G01S7/36

CPC分类号： G01S7/38 ,  H03D7/00 ,  H03D2200/0078 ,  H03D7/125 ,  H03D7/14 ,  H03D9/0658

摘要： A high-speed serrodyne digital frequency translator utilizes a digital phase-shifter, for example, of series coupled Schiffman type cells, which have reference and delay paths which are switched by three-terminal devices of the gallium arsenide FET type. No bias voltages are used and the FETS are driven by the output of a binary divider network which in turn is composed of GaAs FETS as active elements. Thus switching in the picosecond range results.

摘要翻译： 高速serrodyne数字频率转换器利用例如串联耦合的Schiffman型单元的数字移相器，其具有由砷化镓FET类型的三端子器件切换的参考和延迟路径。 没有使用偏置电压，FETs由二分频网络的输出驱动，二进制分频器网络又由GaAs FET作为有源元件组成。 因此，在皮秒范围内切换结果。

公开(公告)号：US5003312A

公开(公告)日：1991-03-26

申请号：US855151

申请日：1986-03-28

申请人： Asad M. Madni ,  Lawrence A. Wan

发明人： Asad M. Madni ,  Lawrence A. Wan

IPC分类号： G01S7/38

CPC分类号： G01S7/38

摘要： The velocity deception apparatus utilizes a serrodyne technique to produce various deception jamming modes. The modes are all controllable by parameters which are digitally stored and in addition, the modes may be selectively actuated by a remote control panel located in the aircraft on which the apparatus is installed. All of the foregoing is accomplished with low cost, reliability, simplicity and with flexibility of operation in being able to digitally reprogram the apparatus on an ongoing basis.

摘要翻译： 速度欺骗装置利用serrodyne技术产生各种欺骗干扰模式。 这些模式都可以通过数字存储的参数来控制，此外，这些模式可以由位于其上安装设备的飞行器中的遥控面板选择性地启动。 所有这些都是以低成本，可靠性，简单性以及在能够以持续的方式对设备进行数字重新编程的操作的灵活性来实现的。

公开(公告)号：US07501834B2

公开(公告)日：2009-03-10

申请号：US11159572

申请日：2005-06-21

申请人： Asad M. Madni ,  Jim B. Vuong ,  Robert K. Hansen

发明人： Asad M. Madni ,  Jim B. Vuong ,  Robert K. Hansen

IPC分类号： G01R27/26 ,  H04R9/06

CPC分类号： H02K11/21 ,  H02K41/0356 ,  H02P25/034

摘要： A voice coil actuator having a capacitive sensor. A magnetic housing contains at least one magnet, and has a wall that defines a first cavity. A magnetic core is coupled to the magnetic housing and extend from an interior surface of the magnetic housing in a direction of a center axis of the wall of the magnetic housing. A coil assembly has a wall defining a second cavity that at least partly envelops the magnetic core, disposed at least partly inside the first cavity, and adapted to move linearly with respect to the magnetic housing. The coil assembly forms a capacitive sensor with the magnetic core, the capacitive sensor adapted to measure at least one of position, velocity and acceleration of the coil assembly with respect to the magnetic housing.

摘要翻译： 具有电容式传感器的音圈致动器。 磁性壳体包含至少一个磁体，并且具有限定第一腔的壁。 磁芯被耦合到磁性壳体并且从磁性壳体的内表面沿着磁性壳体的壁的中心轴线的方向延伸。 线圈组件具有限定第二腔的壁，所述第二腔至少部分地包围磁芯，至少部分地设置在第一腔内，并且适于相对于磁性壳体线性地移动。 线圈组件形成具有磁芯的电容传感器，电容式传感器适于测量线圈组件相对于磁性壳体的位置，速度和加速度中的至少一个。

公开(公告)号：US06233947B1

公开(公告)日：2001-05-22

申请号：US09432999

申请日：1999-11-02

申请人： Asad M. Madni ,  Jim B. Vuong ,  Lawrence A. Wan

发明人： Asad M. Madni ,  Jim B. Vuong ,  Lawrence A. Wan

IPC分类号： F25B900

CPC分类号： F25B9/14 ,  F25B2309/001

摘要： A high efficiency fuzzy logic based Stirling cycle cryogenic cooler has increased efficiency by driving the system in the demand mode (near the desired set point cooling temperature) by a more efficient sinusoidal waveform. The compressor pistons of the Stirling compressor are driven by a voice coil actuator between compressing the coolant gas and then releasing and being driven against an opposing return spring. Since a square wave provides faster cool-down, this is utilized during that mode. In addition, to utilize the rebound effect of both the ambient gas pressure and the return springs, the voice coil actuator drive is turned off during one-quarter cycle rebound portions of the cooling cycle.

摘要翻译： 基于高效模糊逻辑的斯特林循环低温冷却器通过更有效的正弦波形在需求模式（靠近所需设定点冷却温度）下驱动系统而提高了效率。 斯特林压缩机的压缩机活塞由音圈致动器驱动，压缩冷却剂气体，然后释放并被驱动抵靠相对的复位弹簧。 由于方波提供更快的降温，因此在此模式下使用。 此外，为了利用环境气体压力和复位弹簧的回弹效应，在冷却循环的四分之一周期的回弹部分期间，音圈致动器驱动器被关闭。

公开(公告)号：US5974940A

公开(公告)日：1999-11-02

申请号：US908023

申请日：1997-08-20

申请人： Asad M. Madni ,  Lawrence A. Wan ,  Robert K. Hansen ,  Jim Vuong

发明人： Asad M. Madni ,  Lawrence A. Wan ,  Robert K. Hansen ,  Jim Vuong

IPC分类号： F41C23/12 ,  F41A21/48 ,  F41A27/30 ,  F41C7/00 ,  F41G3/00 ,  F41G3/22 ,  F41G5/14 ,  F41G11/00

CPC分类号： F41A21/48 ,  F41A27/30 ,  F41G3/22 ,  F41G5/14

摘要： An adaptive fuzzy logic based control system for rifle stabilization uses a rifle where the barrel is freely pivoted on the stock which is held by the human being firing the rifle who may be shooting from a moving vehicle or helicopter; alternatively, the firing person may have erratic hand or body motion. During a tracking mode, when the target is being sighted in, undesired motion is sensed by position sensors to effectively lock the rifle barrel in alignment with the stock. During a stabilizing mode just before actuation of the trigger to fire the rifle, the barrel is unlocked, inertial rate sensors make the barrel relatively immune to movement of the stock to facilitate the barrel remaining sighted on the tracked target. The fire control system includes a fuzzy logic controller which by a set of inference rules provides for both alignment of the barrel with the stock during tracking and also for stabilization of the barrel just prior to firing.

摘要翻译： 用于步枪稳定的基于自适应模糊逻辑的控制系统使用步枪，其中枪管可自由地枢转在由人发射可能从移动的车辆或直升机射击的步枪的枪上; 或者，射击者可能具有不稳定的手或身体运动。 在跟踪模式期间，当目标被瞄准时，不期望的运动由位置传感器感测以有效地锁定步枪枪筒与原料一致。 在激活触发器以激发步枪之前的稳定模式期间，枪管被解锁，惯性速率传感器使得桶相对于库存的移动免于动作，以便使枪管保持在被跟踪的目标上。 消防控制系统包括一个模糊逻辑控制器，该控制器通过一组推理规则提供了在跟踪过程中筒体与坯料的对准，并且还用于在烧制之前对筒的稳定性。

公开(公告)号：US08113050B2

公开(公告)日：2012-02-14

申请号：US12279174

申请日：2006-01-25

申请人： Cenk Acar ,  Andrei Shkel ,  Adam R. Schofield ,  Lynn E. Costlow ,  Asad M. Madni

发明人： Cenk Acar ,  Andrei Shkel ,  Adam R. Schofield ,  Lynn E. Costlow ,  Asad M. Madni

IPC分类号： G01P9/04 ,  G01C19/00

CPC分类号： G01P15/14 ,  G01C19/574 ,  G01P15/18 ,  Y10T74/1225

摘要： A method of operating an anti-phase six degree-of-freedom tuning fork gyroscope system comprises the steps of driving a first three degree-of-freedom gyroscope subsystem, and driving a second three degree-of freedom gyroscope subsystem in an anti-phase mode with the first gyroscope subsystem at an anti-phase resonant frequency. Acceleration or an angular rate of motion is sensed by the first and second three degree-of-freedom gyroscope subsystems operating in a flat frequency response range where the anti-phase resonant frequency is designed. Response gain and phase are stable and environmental and fabrication perturbations are avoided by such operation. A anti-phase six degree-of-freedom tuning fork gyroscope system which operates as described is also characterized.

摘要翻译： 一种操作反相六自由度音叉陀螺仪系统的方法包括以下步骤：驱动第一三自由度陀螺仪子系统，以及驱动第二三自由度陀螺仪子系统的反相 模式，第一个陀螺仪子系统处于反相谐振频率。 通过设计反相谐振频率的平坦频率响应范围内工作的第一和第三三自由度陀螺仪子系统感测加速度或角速度。 响应增益和相位是稳定的，通过这种操作可以避免环境和制造扰动。 还描述了如上所述操作的反相六自由度音叉陀螺仪系统。

公开(公告)号：US20090272189A1

公开(公告)日：2009-11-05

申请号：US12279174

申请日：2006-01-25

申请人： Cenk Acar ,  Andrei Shkel ,  Adam R. Schofield ,  Lynn E. Costlow ,  Asad M. Madni

发明人： Cenk Acar ,  Andrei Shkel ,  Adam R. Schofield ,  Lynn E. Costlow ,  Asad M. Madni

IPC分类号： G01C19/56

CPC分类号： G01P15/14 ,  G01C19/574 ,  G01P15/18 ,  Y10T74/1225

摘要： A method of operating an anti-phase six degree-of-freedom tuning fork gyroscope system comprises the steps of driving a first three degree-of-freedom gyroscope subsystem, and driving a second three degree-of freedom gyroscope subsystem in an anti-phase mode with the first gyroscope subsystem at an anti-phase resonant frequency. Acceleration or an angular rate of motion is sensed by means of the first and second three degree-of-freedom gyroscope subsystems operating in a flat frequency response range where the anti-phase resonant frequency is designed. Response gain and phase are stable and environmental and fabrication perturbations are avoided by such operation. A anti-phase six degree-of-freedom tuning fork gyroscope system which operates as described is also characterized.

摘要翻译： 一种操作反相六自由度音叉陀螺仪系统的方法包括以下步骤：驱动第一三自由度陀螺仪子系统，以及驱动第二三自由度陀螺仪子系统的反相 模式，第一个陀螺仪子系统处于反相谐振频率。 通过在设计反相谐振频率的平坦频率响应范围内工作的第一和第三三自由度陀螺仪子系统感测加速度或角速度。 响应增益和相位是稳定的，通过这种操作可以避免环境和制造扰动。 还描述了如上所述操作的反相六自由度音叉陀螺仪系统。

公开(公告)号：US06985018B2

公开(公告)日：2006-01-10

申请号：US10813329

申请日：2004-03-29

申请人： Asad M. Madni ,  Jim B. Vuong ,  Philip Vuong

发明人： Asad M. Madni ,  Jim B. Vuong ,  Philip Vuong

IPC分类号： H03K3/017

CPC分类号： G01D5/2053

摘要： A multi-turn pulse width modulation (PWM) generator for generating a PWM output corresponding to multiple 360 degree turns. A counter receives a reference signal, and counts a number of cycles of the reference signal to generate a binary output corresponding to the number of cycles counted. A frequency divider receives a sensor output signal, and divides the frequency of the sensor output signal by the number of turns in the multiple turns to generate a frequency divided signal. The sensor output signal has substantially the same frequency as the reference signal, but can be offset in phase from the reference signal. A demultiplexer receives the binary output, and generates a plurality of turn indicator signals, each corresponding to one of the multiple turns. A multiplexer receives the turn indicator signals and a mechanical turn indication signal, and selects one of the turn indicator signals that corresponds to the mechanical turn indication signal. At least one flip flop receives the selected one of the turn indicator signals and the frequency divided signal, and generates the PWM output using the selected one of the turn indicator signals and the frequency divided signal. The multi-turn PWM generator may be combined with a single-turn angular position sensor to form a multi-turn angular position sensor.

摘要翻译： 一种用于产生对应于多个360度匝数的PWM输出的多匝脉宽调制（PWM）发生器。 计数器接收参考信号，并对参考信号的周期数进行计数，以生成与计数的周期数相对应的二进制输出。 分频器接收传感器输出信号，并将传感器输出信号的频率除以匝数匝数以产生分频信号。 传感器输出信号具有与参考信号基本相同的频率，但可以与参考信号相位偏移。 解复用器接收二进制输出，并且产生多个转向指示符信号，每个转向指示符信号对应于多个匝数之一。 复用器接收转向指示符信号和机械转向指示信号，并且选择对应于机械转向指示信号的转向指示符信号之一。 至少一个触发器接收转向指示符信号和分频信号中选择的一个触发器，并且使用转向指示器信号和分频信号中选择的一个产生PWM输出。 多匝PWM发生器可以与单匝角位置传感器组合以形成多匝角位置传感器。

公开(公告)号：US06448759B2

公开(公告)日：2002-09-10

申请号：US09764840

申请日：2001-01-17

申请人： Asad M. Madni ,  Jim B. Vuong

发明人： Asad M. Madni ,  Jim B. Vuong

IPC分类号： G01B714

CPC分类号： G01D5/2053

摘要： A non-contact linear position center has juxtaposed transmit and receive sections with a coupler or slider section interposed therebetween carrying a symmetrical attenuating conductive pattern. The inductive coupling of coils on the transmitter and receive sections is attenuated in accordance with the linear position of the pattern on the coupler. A unique sinusoidal signal is generated whose phase is indicative of the linear position of the coupler.

摘要翻译： 非接触线性位置中心具有并置的发射和接收部分，其间插入有耦合器或滑块部分，带有对称的衰减导电图案。 发射器和接收部分上的线圈的电感耦合根据耦合器上图案的线性位置而衰减。 产生一个独特的正弦信号，其相位表示耦合器的线性位置。