公开(公告)号：US5134397A

公开(公告)日：1992-07-28

申请号：US716179

申请日：1991-06-17

Applicant: Bruce N. Eyerly ,  Donald R. Cargille

Inventor： Bruce N. Eyerly ,  Donald R. Cargille

IPC: G01D5/245 ,  G01D5/20 ,  H03M1/48 ,  H03M1/64

CPC classification number: H03M1/485 ,  G01D5/2073

Abstract: A phase compensation circuit for use with a resolver circuit that compensates for resolver angle measurement error without the use of special compensation windings on the resolver or the buffer amplifier associated with the compensation windings. With the present invention, primary windings from a plurality of resolvers may be reduction over conventional circuits. A digital computer is employed to process integrated data indicative of the phase shift of signals generated by the resolver, and compute error correction signals that compensate sine and cosine angle data output signals of the resolver. No resolver compensation windings are necessary and no additional electronic equipment is necessary. The present invention provides increased accuracy to fulfill more stringent angle measurement specifications.

公开(公告)号：US06360601B1

公开(公告)日：2002-03-26

申请号：US09488425

申请日：2000-01-20

Applicant: A. Dorian Challoner ,  Roman C. Gutierrez ,  Tony K. Tang ,  Donald R. Cargille

Inventor： A. Dorian Challoner ,  Roman C. Gutierrez ,  Tony K. Tang ,  Donald R. Cargille

IPC: G01P904

CPC classification number: G01C19/5719 ,  G01P2015/084 ,  G01P2015/0842

Abstract: A micro-gyroscope (10) having closed loop operation by a control voltage (VTY), that is demodulated by an output signal of the sense electrodes (S1, S2), providing Coriolis torque rebalance to prevent displacement of the micro-gyroscope (10) on the output axis (y-axis). The present invention provides wide-band, closed-loop operation for a micro-gyroscope (10) and allows the drive frequency to be closely tuned to a high Q sense axis resonance. A differential sense signal (S1−S2) is compensated and fed back by differentially changing the voltage on the drive electrodes to rebalance Coriolis torque. The feedback signal is demodulated in phase with the drive axis signal (K&ohgr;⊖x) to produce a measure of the Coriolis force.

Abstract translation: 一种具有通过感测电极（S1，S2）的输出信号解调的控制电压（VTY）的闭环操作的微型陀螺仪（10），提供科里奥利扭矩重新平衡以防止微型陀螺仪（10）的位移 ）在输出轴（y轴）上。 本发明为微型陀螺仪（10）提供宽带，闭环操作，并允许将驱动频率紧密地调谐到高Q感测轴共振。 差分感测信号（S1-S2）被补偿并通过差动地改变驱动电极上的电压进行反馈，以重新平衡科里奥利扭矩。 反馈信号与驱动轴信号（Komega⊖x）同相解调，以产生科里奥利力的量度。

公开(公告)号：US06289733B1

公开(公告)日：2001-09-18

申请号：US09310898

申请日：1999-05-12

Applicant: Anthony D. Challoner ,  Wallace H. Sunada ,  Donald R. Cargille

Inventor： Anthony D. Challoner ,  Wallace H. Sunada ,  Donald R. Cargille

IPC: G01P904

CPC classification number: G01C19/5719

Abstract: Planar vibratory gyroscope structures are provided which are inherently symmetric, which facilitate the use of simple monolithic fabrication processes and which enable the use of sensitive control and sense systems. A planar vibratory member of these structures has a hollow frame, a plate that has a plate perimeter and is positioned within the frame and a plurality of elongate beams which couple the plate to the frame wherein each of the beams is proximate to and substantially parallel to a respective portion of the plate perimeter. The exterior rim of the planar member can be supported by a substrate which provides room for easy access to the plate with mode control and sense systems.

Abstract translation: 提供了平面振动陀螺仪结构，其本质上是对称的，这有助于使用简单的单片制造工艺，并且能够使用敏感的控制和感测系统。 这些结构的平面振动构件具有中空框架，具有板周边并且定位在框架内的板和多个细长梁，其将板耦合到框架，其中每个梁接近并且基本上平行于 板周边的相应部分。 平面构件的外缘可由基板支撑，该基板通过模式控制和感测系统提供容易接近板的空间。

公开(公告)号：US5859368A

公开(公告)日：1999-01-12

申请号：US632186

申请日：1996-04-15

Applicant: Donald R. Cargille

Inventor： Donald R. Cargille

IPC: G01C19/5656 ,  G01P9/04

CPC classification number: G01C19/5656

Abstract: A high-accuracy, low-cost rotation rate sensor is based on a vibrating mechanical element induced to laterally oscillate. When rotated, the element, preferably a cantilever beam, is subjected to a Coriolis force that is proportional to the rate of rotation. The Coriolis force, if not counteracted, would cause the beam to move vertically. Vertical motion is detected with a highly sensitive tunneling tip sensor positioned below the beam. A wide bandwidth control circuit applies a counteracting force to the beam to keep the gap between tip and beam constant. This counteracting force varies with and provides an indication of the rotation rate. Lateral oscillation is induced by applying an electrostatic force to the beam with narrow, bipolar pulses that improve the sensor's stability and accuracy. A quadrature suppression circuit is employed if needed to prevent an oscillation that is tending to tilt due to imperfections in sensor construction, by activating electrodes positioned on a substrate below the oscillating beam to counteract the tendency. An alternative embodiment of the invention utilizes a tunneling tip to provide both lateral and vertical position sensing of an oscillating beam.

Abstract translation: 高精度，低成本的旋转速率传感器是基于诱发横向振荡的振动机械元件。 当旋转时，元件，优选地是悬臂梁，受到与旋转速率成比例的科里奥利力。 科里奥利力量，如果没有抵消，将导致梁垂直移动。 使用位于梁下方的高灵敏度隧道尖端传感器检测垂直运动。 宽带宽控制电路向光束施加反作用力以保持尖端和光束之间的间隙恒定。 该反作用力随着旋转速度而变化并提供旋转速率的指示。 通过对具有改善传感器的稳定性和精度的窄双极性脉冲的光束施加静电力而引起横向振荡。 如果需要，采用正交抑制电路，通过激活位于振荡束下方的衬底上的电极来抵消由于传感器结构中的缺陷而倾向于倾斜的振荡，以抵消倾向。 本发明的替代实施例利用隧道尖端来提供摆动梁的横向和垂直位置感测。

公开(公告)号：US5304863A

公开(公告)日：1994-04-19

申请号：US939562

申请日：1992-09-02

Applicant: Donald R. Cargille

Inventor： Donald R. Cargille

IPC: H03K17/687 ,  H03K17/691 ,  H03K3/45 ,  H03K3/30

CPC classification number: H03K17/691 ,  H03K17/6877

Abstract: A transformer driver having an unlimited duty cycle capability is disclosed herein. The transformer driver 10 of the present invention is coupled to an output circuit 20 and includes a transformer 32 having primary winding and secondary windings 30 and 34. The inventive driver 10 further includes a generator 26 for applying a plurality of charging pulses P1, P2 to the primary transformer winding 30 to keep the transformer from being saturated. A transistor buffer network 36 selectively electrically isolates the output circuit 20 from the transformer. In a particular embodiment the charging pulses P1, P2 serve to maintain the voltage at the control terminal 38 of a power transistor included within the output circuit.

Abstract translation: 本文公开了具有无限占空比能力的变压器驱动器。 本发明的变压器驱动器10耦合到输出电路20，并且包括具有初级绕组和次级绕组30和34的变压器32.本发明的驱动器10还包括用于将多个充电脉冲P1，P2施加到 主变压器绕组30保持变压器饱和。 晶体管缓冲器网络36选择性地将输出电路20与变压器隔离。 在特定实施例中，充电脉冲P1，P2用于维持包括在输出电路内的功率晶体管的控制端子38处的电压。

公开(公告)号：US4426591A

公开(公告)日：1984-01-17

申请号：US175112

申请日：1980-08-04

Applicant: Donald R. Cargille

Inventor： Donald R. Cargille

IPC: H03K5/08 ,  H03K5/153

CPC classification number: H03K5/082

Abstract: An adaptive comparator is provided which compares a signal from a horizon sensor of a satellite to a predetermined threshold to provide a signal indicative of the relative position of a celestial body with improved noise immunity. When the comparator receives a signal from the horizon sensor which exceeds the threshold, an output is provided which may be used to change the orientation of the spacecraft. The comparator includes circuitry for ascertaining the average of one or more of the most recent input pulses which exceeded the previous threshold. This average is then utilized to set a new or adapted threshold. The subsequent input signal is then compared to the adapted threshold and the recursive process continues.

Abstract translation: 提供了一种自适应比较器，其将来自卫星的水平传感器的信号与预定阈值进行比较，以提供指示具有改善的抗噪声性能的天体的相对位置的信号。 当比较器从水平传感器接收到超过阈值的信号时，提供可用于改变航天器取向的输出。 比较器包括用于确定超过先前阈值的一个或多个最近输入脉冲的平均值的电路。 然后将该平均值用于设置新的或适应的阈值。 然后将随后的输入信号与适应的阈值进行比较，并且递归过程继续。

公开(公告)号：US06552604B2

公开(公告)日：2003-04-22

申请号：US10052062

申请日：2002-01-17

Applicant: Donald R. Cargille

Inventor： Donald R. Cargille

IPC: H03B100

CPC classification number: H03H11/126 ,  H03H11/12 ,  H03H2007/013 ,  H03H2011/0488 ,  H03H2210/012 ,  H03H2210/021

Abstract: A notch filter circuit is provided including a first stage circuit and a second stage circuit. The first stage circuit sums a filter input signal with a filter output signal to form a summation signal. The second stage circuit includes a first tee network and a second tee network. The first tee network low-pass filters the filter input signal to form a first tee output signal. The second tee network high-pass filters the summation signal to form a second tee output signal. A first multiplying digital-to-analog converter is electrically coupled to the first tee network and the second tee network. The first converter modifies the gain of the second tee network in response to a gain signal to form a corrected second tee network signal, thereby adjusting a notch filter frequency.

公开(公告)号：US5227943A

公开(公告)日：1993-07-13

申请号：US632845

申请日：1990-12-24

Applicant: Donald R. Cargille

Inventor： Donald R. Cargille

IPC: B64G1/28 ,  B64G1/36 ,  B64G1/42 ,  B64G1/66 ,  H02J3/28

CPC classification number: B64G1/36 ,  B64G1/285 ,  H02J3/28 ,  Y10S388/903

Abstract: A power loss protection system for use in a system having a spinning momentum wheel and connected to a power bus. The inventive system (10) isolates a protected circuit from the power bus (11) in the event of a system power loss and converts and regulates power taken from the kinetic energy stored in the spinning momentum wheel to a voltage sufficient to maintain operation of the protected circuit. In a most general sense, the inventive system includes a power loss detector (21) for detecting a power loss in the system bus and providing a first signal in response thereto and a regulator (26) for regulating the voltage derived from the momentum wheel energy to the protected circuit in response to the first signal.

公开(公告)号：US4705946A

公开(公告)日：1987-11-10

申请号：US772786

申请日：1985-09-05

Applicant: Donald R. Cargille

Inventor： Donald R. Cargille

IPC: G01S3/78 ,  G01S3/781 ,  H03G11/00 ,  G01J5/32

CPC classification number: G01S3/781 ,  H03G11/00

Abstract: An improved infrared sensor is provided which is of the type which scans across a spatial region and detects infrared energy radiating from a celestial body and in which an input electronic signal is produced in response to the detected infrared energy, wherein the improvement comprises: amplifier circuit means for providing an amplified output signal in response to the input electronic signal; threshold detection circuit means for detecting when the output electronic signal reaches a prescribed threshold level substantially below a saturation level of said amplifier circuit means said threshold detection circuit means comprising a thresholding circuit for providing a turn-on signal when the output signal reaches the prescribed threshold level; and feedback circuit means for providing a feedback signal for limiting the input electronic signal provided to said amplifier circuit means, said feedback circuit means comprising a feedback amplifier circuit responsive to the turn-on signal, such that the feedback signal is provided when the output signal substantially reaches the prescribed threshold level; wherein a feedback loop comprising said threshold detection circuit means and said feedback circuit means is characterized by a feedback ratio selected to substantially dampen unwanted oscillations in said feedback loop.

Abstract translation: 提供了一种改进的红外传感器，其类型是扫描空间区域并且检测从天体辐射的红外能量，并且其中响应于检测到的红外能量产生输入电子信号，其中改进包括：放大器电路 用于响应于所述输入电子信号提供放大的输出信号的装置; 阈值检测电路装置，用于检测输出电子信号何时达到规定的阈值电平，该电平实质上低于所述放大器电路的饱和电平，所述阈值检测电路装置包括阈值电路，用于当输出信号达到规定阈值时提供导通信号 水平; 以及用于提供用于限制提供给所述放大器电路装置的输入电子信号的反馈信号的反馈电路装置，所述反馈电路装置包括响应于导通信号的反馈放大器电路，使得当输出信号 基本达到规定的阈值水平; 其中包括所述阈值检测电路装置和所述反馈电路装置的反馈回路的特征在于所选择的反馈比以基本上抑制所述反馈回路中的不需要的振荡。

公开(公告)号：US4432060A

公开(公告)日：1984-02-14

申请号：US231210

申请日：1981-02-04

Applicant: Donald R. Cargille

Inventor： Donald R. Cargille

IPC: G01S3/786 ,  G01S3/789 ,  G06F15/50 ,  G01J1/00

CPC classification number: G01S3/7868 ,  G01S3/789

Abstract: An electronic logic circuit utilized in conjunction with a scanning infrared detector to generate pulses which accurately indicate the precise location of the center of a preselected astronomical radiant body, such as the earth, notwithstanding a wide scanning frequency range with unknown initial value, and capable of rejecting undesirable input signals, is disclosed. The pulses are initially generated so as to conform the frequency of a generated signal to that of the signal applied from the infrared detector, thereby correcting the large initial signal frequency error. Both the conditions of an initially high and low frequency of oscillation of the generated signal relative to the applied signal are corrected. After such frequency correction has been rendered, signal phase correction is accomplished so as to negate the difference between the exact center of the signal applied from the infrared sensor and the trailing edge of the generated signal. The system has a variety of applications in the celestial environment, and especially with use an earth-orbiting satellite, in order to produce error signals which are utilized to correct the flight attitude of the satellite, to produce antenna-positioning steering signals, and to generate other guidance and timing quantities.

Abstract translation: 与扫描红外检测器结合使用的电子逻辑电路，以产生准确地指示预选的天文辐射体（例如地球）的中心的精确位置的脉冲，尽管具有未知初始值的宽扫描频率范围，并且能够 拒绝不期望的输入信号。 最初产生脉冲以便使所生成的信号的频率与从红外检测器施加的信号的频率一致，从而校正大的初始信号频率误差。 校正所产生的信号相对于所施加的信号的初始高和低频振荡的条件。 在进行这种频率校正之后，实现信号相位校正，以便否定从红外线传感器施加的信号的精确中心与产生的信号的后沿之间的差异。 该系统在天体环境中具有各种应用，特别是使用地球轨道卫星，以产生用于校正卫星飞行姿态的误差信号，产生天线定位转向信号，并且 产生其他指导和时间量。