Method for determining the rotational position of the drive shaft of a commutated DC motor
    1.
    发明申请
    Method for determining the rotational position of the drive shaft of a commutated DC motor 有权
    用于确定换向直流电动机的驱动轴的旋转位置的方法

    公开(公告)号:US20040107071A1

    公开(公告)日:2004-06-03

    申请号:US10685089

    申请日:2003-10-07

    发明人: Tobias Gerlach

    IPC分类号: G01C017/00 G01C019/00

    CPC分类号: H02P6/18 H02P7/0094

    摘要: A method for determining the position of a shaft of a commutated direct current (DC) motor based on the current ripples contained in an armature current signal includes digitally sampling the armature current signal to generate signal values at sampling points. The signal value corresponding to a current sampling point and selected signal values corresponding to previous sampling points in a time interval containing the sampling points are compared. Either a rising or falling slope detection signal is generated if the comparison is indicative of either an increasing or decreasing tendency in the magnitudes of the signal values. The rising and falling slope detection signals are respectively indicative of rising and falling current ripple slopes. A current ripple signal is generated if rising and falling slope detection signals are generated one after the other in a given period. The shaft position is determined based on the current ripple signal count.

    摘要翻译: 基于包含在电枢电流信号中的电流波纹来确定换向直流(DC)马达的轴的位置的方法包括对电枢电流信号进行数字采样以在采样点产生信号值。 比较对应于当前采样点的信号值和与包含采样点的时间间隔中的先前采样点对应的选定信号值。 如果比较指示信号值的幅度的增加或减小的趋势,则产生上升或下降斜率检测信号。 上升和下降斜率检测信号分别表示上升和下降电流波纹斜率。 如果在给定的周期内一个接一个地产生上升和下降的斜率检测信号,则产生电流纹波信号。 轴位置根据当前纹波信号计数确定。

    Method for reducing position uncertainty of a portable inertial navigation device
    2.
    发明申请
    Method for reducing position uncertainty of a portable inertial navigation device 失效
    降低便携式惯性导航装置的位置不确定性的方法

    公开(公告)号:US20040002828A1

    公开(公告)日:2004-01-01

    申请号:US10185996

    申请日:2002-06-27

    CPC分类号: G01C21/20 G01C21/165

    摘要: A first set of coordinates (100) of a device and an estimated positional error (nullEPEnull) radius (102) is measured. An EPE circle (104) is derived, in which the device is approximately located, from the first set of coordinates (100) and the EPE radius (102). When it is determined that the EPE radius (102) exceeds a predetermined threshold, a first range (106) between the device and a ranging site (108) is measured, and a locus of points (110) on and within the EPE circle (104) is determined, wherein a distance between the ranging site (108) and each point in the locus of points (110) approximately equals the first range (106).

    摘要翻译: 测量装置的第一组坐标(100)和估计的位置误差(“EPE”)半径(102)。 从第一坐标系(100)和EPE半径(102)导出EPE圆(104),其中装置大致定位。 当确定EPE半径(102)超过预定阈值时,测量装置和测距位置(108)之间的第一范围(106),并且测量EPE圆周(和)内的点(110)的轨迹 104),其中测距位置(108)和点(110)的轨迹中的每个点之间的距离近似等于第一范围(106)。

    Electronic compass
    3.
    发明申请
    Electronic compass 失效
    电子指南针

    公开(公告)号:US20030167122A1

    公开(公告)日:2003-09-04

    申请号:US10275393

    申请日:2003-04-27

    IPC分类号: G01C017/00

    CPC分类号: G01C17/30 G01R33/04

    摘要: An electronic compass comprises a saturable core sensor (2) with a core (3) made of ferromagnetic material surrounded by an electric winding (3null), a first couple of electric windings (4, 5) around the sensor (2) having reciprocally orthogonal turns, a second couple of electric windings (8, 9) around said first couple (4, 5) having reciprocally orthogonal turns. The gap between the winding (3null) and the first couple of windings (4, 5) and between the first couple of windings (4, 5) and the second couple of windings (8, 9) is filled with a material having a low thermal expansion coefficient, preferably epoxy fibreglass reinforced plastic, supporting the windings of said first (4, 5) and second (8, 9) couple of windings. It is also provided an electronic control circuit (20, 21, 22).

    摘要翻译: 一个电子指南针包括一个可饱和的核心传感器(2),一个由电磁绕组(3')围绕的铁磁材料制成的芯体(3),围绕传感器(2)的第一对电绕组(4,5) 正交匝,围绕所述第一对(4,5)的具有往复正交匝的第二对电绕组(8,9)。 绕组(3')和第一对绕组(4,5)之间以及在第一对绕组(4,5)和第二绕组(8,9)之间的间隙填充有具有 低热膨胀系数,优选环氧玻璃纤维增​​强塑料,支撑所述第一(4,5)和第二(8,9)绕组的绕组。 还提供一个电子控制电路(20,21,22)。

    MECHANICAL ROTATION AXIS MEASUREMENT SYSTEM AND METHOD
    4.
    发明申请
    MECHANICAL ROTATION AXIS MEASUREMENT SYSTEM AND METHOD 失效
    机械旋转轴测量系统和方法

    公开(公告)号:US20030097236A1

    公开(公告)日:2003-05-22

    申请号:US09917455

    申请日:2001-07-26

    发明人: Gordon E. James

    CPC分类号: G01C11/00

    摘要: A system, apparatus (60) and method (20) of determining an average axis of rotation (Wf) and defined center of rotation (Cr) of a rotatable device (10) having a rotation axis which is nominally fixed in global coordinates (X,Y,Z) and having a plurality of target points (P1-PN) affixed thereon. It comprise a data collector (62) for obtaining target point location data from the device target points (P1-PN) for a plurality of rotated positions, a transformer (64) for translating and rotating the target point data in global coordinates, and an iterative algorithm (66) for positioning a secondary coordinate system (U,V,W) to be coincident with the axis of rotation (Wf), and defined center of rotation (Cr) of the rotatable device (10).

    摘要翻译: 一种确定具有旋转轴的旋转轴的平均旋转轴线(Wf)和确定的旋转轴(10)的旋转轴线(10)的系统,装置(60)和方法(20) ,Y,Z),并且具有固定在其上的多个目标点(P1-PN)。 它包括用于从多个旋转位置的装置目标点(P1-PN)获取目标点位置数据的数据收集器(62),用于在全局坐标中平移和旋转目标点数据的变换器(64) 用于将辅助坐标系(U,V,W)定位成与旋转轴线(Wf)重合的迭代算法(66)和可旋转装置(10)的限定的旋转中心(Cr)。

    Elevator car position sensing system
    5.
    发明申请
    Elevator car position sensing system 有权
    电梯车位传感系统

    公开(公告)号:US20020193963A1

    公开(公告)日:2002-12-19

    申请号:US10226047

    申请日:2002-08-21

    IPC分类号: G01C017/00

    CPC分类号: B66B1/40

    摘要: A system of sensing elevator car position is presented that dynamically compensates for problems due to frictional slippage of its mechanical connection and/or building settlement. The system comprises an elevator car within an elevator hoistway. An encoder is mounted within the elevator hoistway and mechanically connected to the elevator car. The mechanical connection drives the encoder which generates data indicative of the position of the elevator car. Either one of a position sensor and a position sensor actuator is mounted to a landing of the hoistway. The other one of the position sensor and position sensor actuator is mounted to the elevator car. The position sensor generates data indicative of the elevator car floor reaching a predetermined distance from the elevator landing when actuated by the position sensor actuator. An elevator position controller receives the data generated by both the position sensor and the encoder. The mechanical connection may include an elevator rope frictionally driving a governor sheave of an elevator speed governor system upon which the encoder is mounted.

    摘要翻译: 提出了一种感应电梯轿厢位置的系统,其动态地补偿由于其机械连接和/或建筑物沉降的摩擦滑动引起的问题。 该系统包括电梯井道内的电梯轿厢。 编码器安装在电梯井道内并机械地连接到电梯轿厢。 机械连接驱动编码器,其产生指示电梯轿厢的位置的数据。 位置传感器和位置传感器致动器中的任何一个安装在井道的平台上。 位置传感器和位置传感器执行器中的另一个安装到电梯轿厢。 当由位置传感器致动器致动时,位置传感器产生指示电梯轿厢楼层到达电梯层站预定距离的数据。 电梯位置控制器接收由位置传感器和编码器产生的数据。 机械连接可以包括摩擦地驱动安装编码器的电梯调速器系统的调速器滑轮的电梯绳索。

    Micro azimuth-level detector based on micro electro-mechanical systems and a method for determination of attitude
    6.
    发明申请
    Micro azimuth-level detector based on micro electro-mechanical systems and a method for determination of attitude 失效
    基于微机电系统的微方位检测器和姿态测定方法

    公开(公告)号:US20020188416A1

    公开(公告)日:2002-12-12

    申请号:US10094991

    申请日:2002-03-12

    CPC分类号: G01C17/28 G01C17/38

    摘要: This present invention is subjected to the field of instrument & measurement technology based on Micro Electro-mechanical Systems (MEMS). A micro azimuth-level detector comprises multi-sensors (triaxial silicon accelerometers with the processing circuit and triaxial silicon magnetometers with the processing circuit), A/D converter for converting the analog signals of the sensors to the digital signals, microprocessor in which the signal-processing and attitude computation are carried out, RS-232 for connecting the microprocessor with PC, and Operation-Display interface. An attitude computation method uses the Orientation Cosine Conversion of the earth's gravity and magnetic field.

    摘要翻译: 本发明受到基于微机电系统(MEMS)的仪器和测量技术领域的应用。 微方位电平检测器包括多传感器(具有处理电路的三轴硅加速度计和具有处理电路的三轴硅磁力计),用于将传感器的模拟信号转换为数字信号的A / D转换器,其中信号 进行处理和姿态计算,将微处理器与PC连接的RS-232和操作显示界面。 姿态计算方法使用地球重力和磁场的取向余弦变换。

    Head stack assembly installation system for a disc drive
    7.
    发明申请
    Head stack assembly installation system for a disc drive 失效
    磁盘驱动器的磁头组件安装系统

    公开(公告)号:US20020148104A1

    公开(公告)日:2002-10-17

    申请号:US10172692

    申请日:2002-06-14

    摘要: A head stack assembly installation system with a frame supporting a head stack installation tool including a robotic assembly supporting a measurement assembly communicating with a computer hosting an installation software program. The robotic assembly picks and places the head stack assembly into the head disc assembly and the measurement assembly collects and communicates process positions and force parameters to the computer, the computer calculating distance and force data. The installation software program directs and controls enactment of process steps followed by the head stack installation tool to install or abort installation of the head stack assembly based on the position and force data.

    摘要翻译: 一种头部堆叠组件安装系统,其具有支撑头部堆叠安装工具的框架,所述头部堆叠安装工具包括支撑与托管安装软件程序的计算机通信的测量组件的机器人组件。 机器人组件拾取并将磁头组组件放置在磁头组件中,并且测量组件收集并且将过程位置和力参数传递给计算机,计算机计算距离和力数据。 安装软件程序指导和控制流程步骤的制定,然后由磁头堆栈安装工具根据位置和力数据安装或中止安装磁头堆叠组件。

    Apparatus and method for estimating angular rate
    8.
    发明申请
    Apparatus and method for estimating angular rate 审中-公开
    用于估计角速率的装置和方法

    公开(公告)号:US20020123857A1

    公开(公告)日:2002-09-05

    申请号:US09985273

    申请日:2001-11-02

    发明人: Lars Bjorset SR.

    IPC分类号: G06F019/00 G01C017/00

    CPC分类号: G01C19/42

    摘要: A method and apparatus for estimating angular rates for movable bodies in space. A high-pass component qg is produced by a reasonable rate gyro connected in cascade with an internal or external high-pass filter. A low-frequency component ql is produced by an accelerometer and a multiplier, which includes the axial velocity Vm of the body, and a transfer function H(s), where the properties of the transfer function H(s) are adapted to the properties of the high-pass filter. The cascade-connected rate gyro and high-pass filter are interconnected with the low-frequency rate estimator and fixedly mounted in a movable body, such as a guided weapon, and produce a resultant rate gyro signal qc that is am estimate of the body's angular rate about the relevant axis.

    摘要翻译: 一种用于估计空间中可移动体的角速率的方法和装置。 高通分量qg由与内部或外部高通滤波器级联连接的合理速率陀螺仪产生。 低频分量q1由加速度计和乘法器产生,加速度计和乘法器包括主体的轴向速度Vm和传递函数H(s),其中传递函数H(s)的性质适应于 的高通滤波器。 级联连接速率陀螺仪和高通滤波器与低频率估计器相互连接,并固定地安装在诸如导弹武器的可移动体中,并且产生合成速率陀螺仪信号qc,其估计身体的角度 关于相关轴的速率。

    Method and system for determining magnetic attitude
    9.
    发明申请
    Method and system for determining magnetic attitude 失效
    磁场姿态测定方法及系统

    公开(公告)号:US20020111762A1

    公开(公告)日:2002-08-15

    申请号:US09740762

    申请日:2000-12-18

    IPC分类号: G01C017/00

    CPC分类号: G01C17/38

    摘要: A system which derives the attitude of a body as it rotates and travels through the earth's magnetic field. At least one magnetometer is placed in the body and provides an output signal during flight of the body. The zero crossings of the output signal are used to formulate a time discriminant. This time discriminant is compared with a roll angle discriminant for which a value of attitude has been previously determined. From the comparison, the attitude during flight may be determined. A time discriminant can also be formulated using two magnetometers.

    摘要翻译: 一种能够在身体转动并穿过地球磁场时获得身体姿态的系统。 至少有一个磁力计放置在身体内,并在身体飞行期间提供输出信号。 输出信号的过零点用于制定时间判别式。 该时间判别式与预先确定了姿态值的滚动角判别式进行比较。 从比较中可以确定飞行中的态度。 时间判别式也可以使用两个磁力计来表达。

    Method for determining a position of an object
    10.
    发明申请
    Method for determining a position of an object 有权
    确定物体位置的方法

    公开(公告)号:US20040199357A1

    公开(公告)日:2004-10-07

    申请号:US10803982

    申请日:2004-03-19

    申请人: NEC CORPORATION

    发明人: Uwe Jaekel

    IPC分类号: G01C017/00

    摘要: A method for the determination of the position, in particular the future position, of an object, in particular of a particle or the like, in which case the progression of the position of a reference object is determined, in which case the reference object passes through a process and in which case the differences of the positions of the object and of the reference object are formed, has been designed for the purpose of a good determination of the position of the object with simultaneously the lowest possible technical expenditure in such a manner that error position terms are formed from the differences, and that the error position terms are weighted with at least one correction factor.

    摘要翻译: 用于确定物体,特别是颗粒等的位置,特别是未来位置的方法,在这种情况下,确定参考对象的位置的进展,在这种情况下,参考对象通过 通过一个过程,在这种情况下形成对象和参考对象的位置的差异,是为了以同样的方式同时以最低的可能技术支出来很好地确定对象的位置的目的 根据差异形成误差位置项,并且利用至少一个校正因子对误差位置项进行加权。