专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5802728A Liquid level and angle detector 失效
标题翻译：液位和角度检测器
公开(公告)号：US5802728A
公开(公告)日：1998-09-08
申请号：US516310
申请日：1995-08-17
申请人： Drew A. Karnick , William S. Watson
发明人： Drew A. Karnick , William S. Watson
IPC分类号： G01F23/00 , G01C9/06 , G01C9/20 , G01D5/20 , G01D5/24 , G01D5/241 , G01F23/24 , G01F23/26 , G08C19/10
CPC分类号： G01F23/24 , G01C9/20 , G01D5/2046 , G01D5/2405 , G01D5/2412 , G01F23/266 , G01F23/268 , G01C2009/062
摘要： A feedback circuit for generating an output signal from a sensor that makes changing electrical and temperature characteristics of the sensor and any sensing medium irrelevant. The sensor is placed in the forward loop of the circuit to make the output depend on the area of the parallel plates the sensor, not on any electrical or temperature characteristics of the sensor or sensing medium. A liquid filled sensor having parallel conducting plates, one solid and the other being split into two differential plate sections may be used in the forward loop as a liquid level sensor or an inclinometer. Alternative sensors such as inductive sensors may also be used.
摘要翻译：用于产生来自传感器的输出信号的反馈电路，该传感器改变传感器的电和温度特性以及任何感测介质不相关。传感器放置在电路的正向环路中，使得输出取决于传感器的平行板的面积，而不是传感器或传感介质的任何电气或温度特性。作为液位传感器或倾斜计，可以在正向回路中使用具有平行导电板的液体填充传感器，一个固体，另一个被分成两个差分板部分。还可以使用诸如感应传感器的替代传感器。

2. 发明授权

US5440817A Vertical reference and attitude system 失效
标题翻译：垂直参考和姿态系统
公开(公告)号：US5440817A
公开(公告)日：1995-08-15
申请号：US64225
申请日：1993-05-19
申请人： William S. Watson , Drew A. Karnick
发明人： William S. Watson , Drew A. Karnick
IPC分类号： G01C9/04 , G01C15/10 , G01C21/18 , G01C9/06
CPC分类号： G01C21/18
摘要： The present invention provides a vertical reference that includes sensors providing signals indicative of angular tilt from the predetermined reference axis and the rate of angular tilt; an integrator to integrate the angular rate signal to provide a dynamic angular tilt signal; a pendulum to provide a signal indicative of angular displacement relative to the predetermined axis; a first amplifier for filtering and amplifying the dynamic angular tilt signal and the angular displacement signal to produce a first amplified signal; a second amplifier for filtering and amplifying the dynamic angular tilt signal and the angular displacement signal to produce a second amplified signal; and a dual input amplifier for combining and amplifying the first and second amplified signals to produce an output signal indicative of vertical reference and attitude. In another embodiment of the present invention a vertical reference apparatus includes a cascaded second-order filter or control loop having a first second-order loop that receives its inputs from the pendulum and the angular rate sensor and a second second-order loop that receives as its inputs the output signal of the first loop and the angular rate sensor. The output of the second loop is provided to a control system for the structure whose orientation is desired to be measured or stabilized. In this alternative embodiment of the present invention each control loop includes a summing amplifier, a summing damped integrator, an inverting amplifier, and an integrator.
摘要翻译：本发明提供一种垂直参考，其包括提供指示来自预定参考轴的角度倾斜和角度倾斜率的信号的传感器; 积分器，用于积分角速率信号以提供动态角度倾斜信号; 钟摆以提供指示相对于预定轴线的角位移的信号; 用于滤波和放大动态角度倾斜信号和角位移信号以产生第一放大信号的第一放大器; 第二放大器，用于滤波和放大动态角度倾斜信号和角位移信号以产生第二放大信号; 以及用于组合和放大第一和第二放大信号以产生指示垂直参考和姿态的输出信号的双输入放大器。在本发明的另一个实施例中，垂直参考装置包括级联的二阶滤波器或控制回路，其具有第一二阶回路，其接收来自摆和角速率传感器的输入，以及第二二阶回路，其接收为它输入第一个回路和角速度传感器的输出信号。将第二回路的输出提供给用于要求测量或稳定其取向的结构的控制系统。在本发明的这个替代实施例中，每个控制回路包括一个求和放大器，一个加法阻尼积分器，一个反相放大器和一个积分器。

3. 发明授权

US08095250B2 Real-time compensation of inertial sensor bias errors under high spin rate conditions 失效
标题翻译：在高旋转速率条件下实时补偿惯性传感器偏置误差
公开(公告)号：US08095250B2
公开(公告)日：2012-01-10
申请号：US12470237
申请日：2009-05-21
申请人： Timothy J. Hanson , Drew A. Karnick
发明人： Timothy J. Hanson , Drew A. Karnick
IPC分类号： G05D1/08
CPC分类号： G01C23/00 , G01C21/16
摘要： A method of estimating bias errors for an air vehicle in flight under high spin conditions is provided. The method comprises collecting a first set of data samples at a first time and collecting a second set of data samples at a second time. The first time and the second time occur after deployment of the air vehicle and before canard shock. The first and second sets of data samples comprise roll rate data from at least a first gyroscope and acceleration data from at least a first accelerometer. At least a first estimated accelerometer bias from the first and second sets of data samples is calculated.
摘要翻译：提供了在高自旋条件下估计飞行器中的空中飞行器的偏差误差的方法。该方法包括在第一时间收集第一组数据样本并且在第二时间收集第二组数据样本。第一次和第二次发生在机动车辆部署之后，并且在胡乱冲击之前。第一和第二组数据样本包括来自至少第一陀螺仪的滚动速率数据和来自至少第一加速度计的加速度数据。计算来自第一和第二组数据样本的至少第一估计的加速度计偏差。

4. 发明申请

US20130041618A1 ESTIMATION OF AN INITIAL CONDITION INERTIAL REFERENCE FRAME 有权
标题翻译：初步条件初步参考框架的估计
公开(公告)号：US20130041618A1
公开(公告)日：2013-02-14
申请号：US13208929
申请日：2011-08-12
申请人： William Francis Kraetz , Drew A. Karnick
发明人： William Francis Kraetz , Drew A. Karnick
IPC分类号： G06F15/00 , G01P15/02
CPC分类号： G01C19/00 , F41G7/007 , G01C21/16 , G01C25/005
摘要： In one embodiment, an inertial device for determining an initial condition reference frame for a body is provided. The inertial device comprises at least one inertial measurement unit, one or more processing devices, and one or more memory devices. The inertial measurement unit provides rotation information along at least one axis to the one or more processing devices. The one or more processing devices uses the rotation information to estimate the current attitude of the body, based on estimates of a total rotation angle from experienced by the body from the beginning of body motion to when the inertial measurement unit initialized.
摘要翻译：在一个实施例中，提供了一种用于确定身体的初始状态参考框架的惯性装置。惯性装置包括至少一个惯性测量单元，一个或多个处理装置和一个或多个存储装置。惯性测量单元沿着至少一个轴向一个或多个处理装置提供旋转信息。一个或多个处理装置使用旋转信息来估计身体的当前姿态，其基于从身体从身体运动开始到惯性测量单元初始化时的总旋转角度的估计。

5. 发明申请

US20100299003A1 REAL-TIME COMPENSATION OF INERTIAL SENSOR BIAS ERRORS UNDER HIGH SPIN RATE CONDITIONS 失效
标题翻译：实时补偿高转速条件下的传感器偏差错误
公开(公告)号：US20100299003A1
公开(公告)日：2010-11-25
申请号：US12470237
申请日：2009-05-21
申请人： Timothy J. Hanson , Drew A. Karnick
发明人： Timothy J. Hanson , Drew A. Karnick
IPC分类号： G06F7/00 , G06F17/11 , G06F15/00
CPC分类号： G01C23/00 , G01C21/16
摘要： A method of estimating bias errors for an air vehicle in flight under high spin conditions is provided. The method comprises collecting a first set of data samples at a first time and collecting a second set of data samples at a second time. The first time and the second time occur after deployment of the air vehicle and before canard shock. The first and second sets of data samples comprise roll rate data from at least a first gyroscope and acceleration data from at least a first accelerometer. At least a first estimated accelerometer bias from the first and second sets of data samples is calculated.
摘要翻译：提供了在高自旋条件下估计飞行器中的空中飞行器的偏差误差的方法。该方法包括在第一时间收集第一组数据样本并且在第二时间收集第二组数据样本。第一次和第二次发生在机动车辆部署之后，并且在胡乱冲击之前。第一和第二组数据样本包括来自至少第一陀螺仪的滚动速率数据和来自至少第一加速度计的加速度数据。计算来自第一和第二组数据样本的至少第一估计的加速度计偏差。

6. 发明申请

US20100139373A1 MEMS SENSOR PACKAGE 审中-公开
标题翻译： MEMS传感器封装
公开(公告)号：US20100139373A1
公开(公告)日：2010-06-10
申请号：US12708074
申请日：2010-02-18
申请人： Todd L. Braman , Drew A. Karnick , Max C. Glenn , Harlan L. Curtis
发明人： Todd L. Braman , Drew A. Karnick , Max C. Glenn , Harlan L. Curtis
IPC分类号： G01M3/20
CPC分类号： G01C19/5783 , B81B7/0038 , B81B7/0041 , B81B2201/0242 , G01C19/56 , G01P1/003 , G01P1/023
摘要： Methods and apparatus for a MEMS sensor package are provided. In one embodiment, a MEMS sensor package comprises a MEMS sensor; a sensor body permeable to gas leakage at a first leak rate; a backfill gas that pressurizes the sensor body to a backfill pressure; wherein the backfill pressure provides a dampening of the MEMS sensor; and wherein the backfill pressure is set such than any increase in pressure within the sensor body due to gas leakage will not cause a deviation in a Q value of the MEMS sensor beyond a predefined range for at least a specified design service life for the MEMS sensor package.
摘要翻译：提供了用于MEMS传感器封装的方法和装置。在一个实施例中，MEMS传感器封装包括MEMS传感器; 在第一泄漏率下可渗透气体的传感器体; 将传感器主体加压到回填压力的回填气体; 其中所述回填压力提供所述MEMS传感器的衰减; 并且其中回填压力被设定为使得由于气体泄漏而导致的传感器主体内的压力的任何增加不会导致MEMS传感器的Q值的偏差超过预定范围，以至少达到用于MEMS传感器的规定的设计使用寿命包。

7. 发明授权

US08666694B2 Estimation of an initial condition inertial reference frame 有权
标题翻译：初始条件惯性参考系的估计
公开(公告)号：US08666694B2
公开(公告)日：2014-03-04
申请号：US13208929
申请日：2011-08-12
申请人： William Francis Kraetz , Drew A. Karnick
发明人： William Francis Kraetz , Drew A. Karnick
IPC分类号： G01P15/00 , G01C9/10 , G01C19/00 , G01C21/16
CPC分类号： G01C19/00 , F41G7/007 , G01C21/16 , G01C25/005
摘要： An inertial device for determining an initial condition reference frame for a body is provided. The inertial device includes at least one inertial measurement unit, one or more processing devices, and one or more memory devices. The inertial measurement unit provides rotation information along at least one axis to the one or more processing devices. The one or more processing devices use the rotation information to estimate the current attitude of the body, based on estimates of a total rotation angle experienced by the body from the beginning of body motion to when the inertial measurement unit initialized.
摘要翻译：提供了一种用于确定身体的初始状态参考框架的惯性装置。惯性装置包括至少一个惯性测量单元，一个或多个处理装置和一个或多个存储装置。惯性测量单元沿着至少一个轴向一个或多个处理装置提供旋转信息。一个或多个处理装置使用旋转信息来估计身体的当前姿态，这是基于身体从身体运动开始到惯性测量单元初始化时经历的总旋转角度的估计。

8. 发明授权

US07412775B1 Gyroscope north seeker system and method 有权
标题翻译：陀螺仪北探器系统及方法
公开(公告)号：US07412775B1
公开(公告)日：2008-08-19
申请号：US11833398
申请日：2007-08-03
申请人： Drew A. Karnick , Timothy J. Hanson
发明人： Drew A. Karnick , Timothy J. Hanson
IPC分类号： G01C19/38 , G01C19/02
CPC分类号： G01C19/38
摘要： A sensor system and method for determining a relative direction to true north is provided. The system comprises at least one angular rate sensor, such as a MEMS sensor, which has an input axis and a rotation axis. The sensor comprises a motor drive structure, a motor signal output from the motor drive structure, a gyroscope, and a sensor rate output from the gyroscope for a sensor rate signal. A frequency divider is in operative communication with the motor signal output, and a spinning device is coupled to the angular rate sensor. A spinning device motor is coupled to the spinning device and is in operative communication with the frequency divider. The spinning device motor has an axis of rotation that is substantially perpendicular to the input axis of the sensor. The spinning device motor is configured to be driven by a periodic signal from the sensor. A position of the spinning device is synchronized to the periodic signal to generate a spinning device position signal. A phase detector is in operative communication with the spinning device motor and with the sensor rate output. The relative direction to true north is determined from a phase differential between the spinning device position signal and the sensor rate signal.
摘要翻译：提供了用于确定与真北相对方向的传感器系统和方法。该系统包括具有输入轴和旋转轴的至少一个角速度传感器，例如MEMS传感器。传感器包括马达驱动结构，从马达驱动结构输出的马达信号，陀螺仪以及用于传感器速率信号的陀螺仪输出的传感器速率。分频器与电动机信号输出操作地通信，并且旋转装置耦合到角速率传感器。纺纱装置马达耦合到纺纱装置并与分频器操作地通信。旋转装置马达具有基本上垂直于传感器的输入轴线的旋转轴线。旋转装置电动机被配置成由来自传感器的周期性信号驱动。旋转装置的位置与周期信号同步，以产生旋转装置位置信号。相位检测器与纺纱装置电动机和传感器速率输出端可操作地通信。根据旋转装置位置信号和传感器速率信号之间的相位差确定与真北相对的方向。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式