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公开(公告)号：US20130081463A1
公开(公告)日：2013-04-04
申请号：US13580616
申请日：2011-03-03
IPC分类号： G01P3/14
CPC分类号： G01P3/14 , G01C19/5684
摘要： An inertial sensor is described that has a commanded test function. The sensor is of a ring type driven by a driver circuit, the sensor further comprising primary and secondary portions having corresponding signal pickoffs. The primary pickoff signal amplitude is controlled via an automatic gain control, the primary phase lock loop and VCO locks to the resonant frequency to provide the clocks for the synchronous detectors, the primary pickoff signals via the primary phase shift circuit is provided to the primary driver, the secondary pickoff signal being input into a detector circuit capable of detecting motion in the sensor. The commanded test function comprises signal derived from the primary portion of the circuit and input into the two inputs of a differential amplifier in the secondary pickoff detector circuit.
摘要翻译： 描述了具有指令测试功能的惯性传感器。 传感器是由驱动器电路驱动的环形型，该传感器还包括具有对应的信号检测的主要和次要部分。 通过自动增益控制来控制主要的检测信号幅度，主锁相环和VCO锁定到谐振频率以提供同步检波器的时钟，通过主相移电路的初级检测信号被提供给主驱动器 ，次级检测信号被输入到能够检测传感器中的运动的检测器电路。 命令测试功能包括从电路的主要部分导出的信号并输入到次级检测电路中的差分放大器的两个输入端。
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公开(公告)号：US09176158B2
公开(公告)日：2015-11-03
申请号：US13580616
申请日：2011-03-03
IPC分类号： G01C19/56 , G01P3/14 , G01C19/5684
CPC分类号： G01P3/14 , G01C19/5684
摘要： An inertial sensor is described that has a commanded test function. The sensor is of a ring type driven by a driver circuit, the sensor further includes primary and secondary portions having corresponding signal pickoffs. The primary pickoff signal amplitude is controlled via an automatic gain control, the primary phase lock loop and VCO locks to the resonant frequency to provide the clocks for the synchronous detectors, the primary pickoff signals via the primary phase shift circuit is provided to the primary driver, the secondary pickoff signal being input into a detector circuit capable of detecting motion in the sensor. The commanded test function includes a signal derived from the primary portion of the circuit and input into the two inputs of a differential amplifier in the secondary pickoff detector circuit.
摘要翻译： 描述了具有指令测试功能的惯性传感器。 该传感器是由驱动电路驱动的环型，该传感器还包括具有相应信号检测的主要和次要部分。 通过自动增益控制来控制主要的检测信号幅度，主锁相环和VCO锁定到谐振频率以提供同步检波器的时钟，通过主相移电路的初级检测信号被提供给主驱动器 ，次级检测信号被输入到能够检测传感器中的运动的检测器电路。 命令测试功能包括从电路的主要部分导出并输入到次级检测电路中的差分放大器的两个输入的信号。
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公开(公告)号：US09234907B2
公开(公告)日：2016-01-12
申请号：US13698342
申请日：2011-05-19
IPC分类号： G01P3/44 , G01C19/567 , G01C19/5628 , G01C19/5733
CPC分类号： G01P3/44 , G01C19/567 , G01C19/5677
摘要： An angular velocity sensor is described with improved ageing and hysteresis properties. The sensor may be of a ring type driven by a driver circuit, the sensor further comprising primary and secondary portions having corresponding signal pickoffs. The gain of the primary pickoff signal and the capacitance of the primary portions of the sensor are controlled relative to the gain of the secondary pickoff and the capacitance of the secondary portions of the sensor. Control electronics is provided that enables matching of the relative signals from the respective channels. In this way, temperature hysteresis and ageing effects of materials used in forming the sensor are overcome.
摘要翻译： 描述了具有改进的老化和滞后特性的角速度传感器。 传感器可以是由驱动器电路驱动的环形，传感器还包括具有对应的信号检测的主要和次要部分。 主传感器的主要部分的增益和传感器的主要部分的电容相对于传感器的次级传感器的增益和传感器次级部分的电容进行控制。 提供控制电子装置，其能够匹配来自相应通道的相对信号。 以这种方式克服了用于形成传感器的材料的温度滞后和老化效应。
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公开(公告)号：US20130233074A1
公开(公告)日：2013-09-12
申请号：US13698342
申请日：2011-05-19
IPC分类号： G01P3/44
CPC分类号： G01P3/44 , G01C19/567 , G01C19/5677
摘要： An angular velocity sensor is described with improved ageing and hysteresis properties. The sensor may be of a ring type driven by a driver circuit, the sensor further comprising primary and secondary portions having corresponding signal pickoffs. The gain of the primary pickoff signal and the capacitance of the primary portions of the sensor are controlled relative to the gain of the secondary pickoff and the capacitance of the secondary portions of the sensor. Control electronics is provided that enables matching of the relative signals from the respective channels. In this way, temperature hysteresis and ageing effects of materials used in forming the sensor are overcome.
摘要翻译： 描述了具有改进的老化和滞后特性的角速度传感器。 传感器可以是由驱动器电路驱动的环形，传感器还包括具有对应的信号检测的主要和次要部分。 主传感器的主要部分的增益和传感器的主要部分的电容相对于传感器的次级传感器的增益和传感器次级部分的电容进行控制。 提供控制电子装置，其能够匹配来自相应通道的相对信号。 以这种方式克服了用于形成传感器的材料的温度滞后和老化效应。
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公开(公告)号：US09341476B2
公开(公告)日：2016-05-17
申请号：US13698339
申请日：2011-05-13
申请人： Kevin Townsend , Michael Durston
发明人： Kevin Townsend , Michael Durston
IPC分类号： G01C19/56 , G01C19/5677 , G01C19/5776
CPC分类号： G01C19/56 , G01C19/5677 , G01C19/5776
摘要： An inertial sensor is described that has means for improving quadrature rejection The sensor is of a ring type, driven by a driver circuit, the sensor further comprising primary and secondary portions having corresponding signal pickoffs. The primary pickoff signal amplitude is controlled via an automatic gain control, the primary phase lock loop and VCO locks to the resonant frequency to provide the clocks for the synchronous detectors, the primary pickoff signals via the primary phase shift circuit is provided to the primary driver, the secondary pickoff signal being input into a detector circuit capable of detecting motion in the sensor. The secondary channel comprises a series of circuits that when operable in series significantly improve the quadrature rejection ability of the sensor. The circuits include a synchronous detector, passive and active filters and a decimator.
摘要翻译： 描述了具有用于改善正交抑制的装置的惯性传感器。传感器是由驱动器电路驱动的环形传感器，传感器还包括具有对应的信号检测的主要和次要部分。 通过自动增益控制来控制主要的检测信号幅度，主锁相环和VCO锁定到谐振频率以提供同步检波器的时钟，通过主相移电路的初级检测信号被提供给主驱动器 ，次级检测信号被输入到能够检测传感器中的运动的检测器电路。 次级通道包括一系列电路，当串联可操作时显着提高传感器的正交抑制能力。 电路包括同步检测器，无源和有源滤波器和抽取器。
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公开(公告)号：US09162875B2
公开(公告)日：2015-10-20
申请号：US13639703
申请日：2011-04-05
申请人： Michael Durston , David Beasley , Kevin Townsend
发明人： Michael Durston , David Beasley , Kevin Townsend
IPC分类号： B81B7/00 , G01C19/5684 , G01C19/56
CPC分类号： B81B7/008 , G01C19/56 , G01C19/5684
摘要： An inertial sensor is described in which a resonant element is driven by control electronics into resonance. The control electronics includes an oscillator. A circuit is provided for matching the frequency of the oscillator with the frequency of the output of the resonant element such that the time to operation from start up of the sensor is minimized and the requirement of frequency matching a given sensor to the control electronics is removed.
摘要翻译： 描述了一种惯性传感器，其中谐振元件由控制电子器件驱动到共振中。 控制电子器件包括一个振荡器。 提供了一种用于将振荡器的频率与谐振元件的输出频率相匹配的电路，使得从传感器启动起的操作时间被最小化，并且将给定传感器与控制电子装置的频率匹配的要求去除 。
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公开(公告)号：US20130199294A1
公开(公告)日：2013-08-08
申请号：US13698339
申请日：2011-05-13
申请人： Kevin Townsend , Michael Durston
发明人： Kevin Townsend , Michael Durston
IPC分类号： G01C19/56
CPC分类号： G01C19/56 , G01C19/5677 , G01C19/5776
摘要： An inertial sensor is described that has means for improving quadrature rejection The sensor is of a ring type, driven by a driver circuit, the sensor further comprising primary and secondary portions having corresponding signal pickoffs. The primary pickoff signal amplitude is controlled via an automatic gain control, the primary phase lock loop and VCO locks to the resonant frequency to provide the clocks for the synchronous detectors, the primary pickoff signals via the primary phase shift circuit is provided to the primary driver, the secondary pickoff signal being input into a detector circuit capable of detecting motion in the sensor. The secondary channel comprises a series of circuits that when operable in series significantly improve the quadrature rejection ability of the sensor. The circuits include a synchronous detector, passive and active filters and a decimator.
摘要翻译： 描述了具有用于改善正交抑制的装置的惯性传感器。传感器是由驱动器电路驱动的环形传感器，传感器还包括具有对应的信号检测的主要和次要部分。 通过自动增益控制来控制主要的检测信号幅度，主锁相环和VCO锁定到谐振频率以提供同步检波器的时钟，通过主相移电路的初级检测信号被提供给主驱动器 ，次级检测信号被输入到能够检测传感器中的运动的检测器电路。 次级通道包括一系列电路，当串联可操作时显着提高传感器的正交抑制能力。 电路包括同步检测器，无源和有源滤波器和抽取器。
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公开(公告)号：US20130199293A1
公开(公告)日：2013-08-08
申请号：US13639703
申请日：2011-04-05
申请人： Michael Durston , David Beasley , Kevin Townsend
发明人： Michael Durston , David Beasley , Kevin Townsend
CPC分类号： B81B7/008 , G01C19/56 , G01C19/5684
摘要： An inertial sensor is described in which a resonant element is driven by control electronics into resonance. The control electronics includes an oscillator. A circuit is provided for matching the frequency of the oscillator with the frequency of the output of the resonant element such that the time to operation from start up of the sensor is minimized and the requirement of frequency matching a given sensor to the control electronics is removed.
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公开(公告)号：US20050229797A1
公开(公告)日：2005-10-20
申请号：US11095024
申请日：2005-03-31
申请人： Carrie Thomas , Catherine Wynkoop , Kevin Townsend
发明人： Carrie Thomas , Catherine Wynkoop , Kevin Townsend
摘要： A method of making screen printing frames can include, in certain illustrative embodiments, affixing at least two frames to one another, applying a masking film to both frames, exposing the frames, removing the unhardened emulsion in the meshes, and separating the frames from one another for deployment in a screen printing apparatus. This exemplary process can be used to create images in substantially complete registration with one another on frames having different mesh counts. Stated another way, these embodiments permit the use of multiple frames to print different inks through different meshes in a single pass to form images in substantially complete registration with one another. In certain preferred embodiments, a screen printing apparatus can include two frames, each having a mesh with a different pitch, wherein the frames are adapted to receive different inks and held in fixed register during a screen printing operation.
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10.发明授权Vibratory sensor operating as a rate gyro about two axes and as a rate integrating gyro about the third one 失效振动传感器作为绕两轴的速率陀螺仪运行，作为速率积分陀螺仪约三分之一公开(公告)号：US06805007B2
公开(公告)日：2004-10-19
申请号：US10181765
申请日：2002-07-23
申请人： Christopher P Fell , Kevin Townsend
发明人： Christopher P Fell , Kevin Townsend
IPC分类号： G01C1900
CPC分类号： G01C19/5677 , G01C19/5691
摘要： A vibrating structure gyroscope comprises a resonant body, a drive transducer for driving resonant motion of the body, a pick-off for producing signals representative of the resonant motion, and a signal processor for extracting z-axis orientation information and x- and y-axis rate information from the signals. The resonant body is planar and the resonant motion takes place in a vibration mode pattern whose orientation angle with respect to the body varies in accordance with z-axis orientation of the body and couples energy into an out-of-plane response mode motion in accordance with rotation of the body about the x- or y-axis. The signal processor resolves the out-of-plane response mode motion with reference to a z-axis orientation signal to extract the x- and y-axis rate information.
摘要翻译： 振动结构陀螺仪包括谐振体，用于驱动身体的共振运动的驱动换能器，用于产生表示谐振运动的信号的拾取器，以及用于提取z轴取向信息和x轴和y轴的信号处理器， 来自信号的轴速率信息。 谐振体是平面的，并且谐振运动发生在振动模式图案中，其相对于身体的取向角根据身体的z轴取向而变化，并且将能量依次转换成平面外的响应模式运动 使身体绕x轴或y轴旋转。 信号处理器参照z轴取向信号来解决平面外的响应模式运动，以提取x轴和y轴速率信息。
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