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8 条记录 (耗时 0.014 秒)

    Combined gyroscope and 2-axis accelerometer
    1.
    发明申请
    Combined gyroscope and 2-axis accelerometer 审中-公开
    组合陀螺仪和2轴加速度计

    公开(公告)号：US20060169041A1

    公开(公告)日：2006-08-03

    申请号：US11049036

    申请日：2005-02-02

    申请人： Asad Madni ,  Lynn Costlow ,  Roger Wells ,  Jim Vuong

    发明人： Asad Madni ,  Lynn Costlow ,  Roger Wells ,  Jim Vuong

    IPC分类号： G01P9/00

    CPC分类号： G01C19/5607 ,  G01P15/08 ,  G01P15/125 ,  G01P15/18

    摘要： A sensor having both gyroscope and accelerometer functions. The sensor includes a pair of masses, an anchor, a pair of support beams, a driver and a displacement measurement device. The pair of masses are configured to oscillate in a counter phase relationship with respect to each other. The anchor supports the pair of masses, and each of the support beams is used to couple one of the masses to the anchor. The driver drives the pair of masses to create a counter phase oscillation, and the displacement measurement device measures respective displacements of the masses in at least one direction. The sensor derives information regarding an acceleration experienced by the sensor in the at least one direction using a measurement of the displacements of the masses.

    摘要翻译： 具有陀螺仪和加速度计功能的传感器。 传感器包括一对质量块，锚杆，一对支撑梁，驱动器和位移测量装置。 一对质量被配置为以相对于彼此的相位关系振荡。 锚固件支撑一对质量，并且每个支撑梁用于将质量块中的一个物体连接到锚固件。 驱动器驱动一对质量以产生相位振荡，并且位移测量装置在至少一个方向上测量质量的相应位移。 传感器通过测量质量的位移，得出关于传感器在至少一个方向上所经历的加速度的信息。

    Digitally compensated non-contact steering angle and torque sensor
    2.
    发明申请
    Digitally compensated non-contact steering angle and torque sensor 审中-公开
    数字补偿非接触转向角和转矩传感器

    公开(公告)号：US20060081070A1

    公开(公告)日：2006-04-20

    申请号：US10966291

    申请日：2004-10-15

    申请人： Asad Madni ,  Jim Vuong

    发明人： Asad Madni ,  Jim Vuong

    IPC分类号： G01L3/10

    CPC分类号： G01D5/202 ,  G01L3/10 ,  G01L3/106 ,  G01L5/221

    摘要： A sensor assembly having an angular position sensor unit and a torque sensor unit enclosed in a single package. The angular position sensor unit generates a first multi-bit output indicative of a degree of rotation of a shaft assembly having a first shaft and a second shaft. The first and second shafts are substantially co-axial to each other and coupled to each other via a torsion rod. The torque sensor unit generates a second multi-bit output indicative of a torque exerted between the first shaft and the second shaft. The second multi-bit output may be linearized and temperature compensated using the first multi-bit output and measured temperature to generate a linearized and temperature compensated torque sensor output.

    摘要翻译： 传感器组件，其具有角位置传感器单元和封闭在单个封装中的扭矩传感器单元。 角位置传感器单元产生指示具有第一轴和第二轴的轴组件的旋转程度的第一多位输出。 第一和第二轴彼此基本上同轴并通过扭力杆相互连接。 扭矩传感器单元产生指示施加在第一轴和第二轴之间的扭矩的第二多位输出。 第二个多位输出可以使用第一个多位输出和测量温度进行线性化和温度补偿，以产生线性化和温度补偿的转矩传感器输出。

    PULSE WIDTH MODULATION BASED DIGITAL INCREMENTAL ENCODER
    3.
    发明申请
    PULSE WIDTH MODULATION BASED DIGITAL INCREMENTAL ENCODER 有权
    基于脉冲宽度调制的数字增益编码器

    公开(公告)号：US20050275568A1

    公开(公告)日：2005-12-15

    申请号：US10853330

    申请日：2004-05-25

    申请人： Asad Madni ,  Jim Vuong ,  Philip Vuong

    发明人： Asad Madni ,  Jim Vuong ,  Philip Vuong

    IPC分类号： G01D5/244 ,  G01D5/20 ,  G01D5/245 ,  H03M7/00

    CPC分类号： G01D5/245 ,  G01D5/2053

    摘要： A digital incremental encoder for generating an output signal indicative of an angular position, a direction of rotation, and a speed of rotation of a shaft. A counter receives a PWM signal indicative of the angular position of the shaft and a clock signal from an angular position sensor, and generates a multi-bit output. A latch latches the multi-bit output, a first bit and a second bit of which are used to generate the output signals that include the first bit. The first bit and the second bit may be XOR'd together to generate an XOR output included in the output signals. A direction of rotation may be derived from a quadrature phase relationship between the first bit and the XOR output. The angular position sensor may be an NCAPS or MT-NCAPS. A linear position sensor may be used instead of an angular position sensor to generate the PWM signal.

    摘要翻译： 一种用于产生指示轴的角位置，旋转方向和转速的输出信号的数字增量式编码器。 计数器接收表示轴的角位置的PWM信号和来自角位置传感器的时钟信号，并产生多位输出。 锁存器锁存多位输出，其第一位和第二位用于产生包括第一位的输出信号。 第一位和第二位可以被异或在一起以产生包括在输出信号中的XOR输出。 可以从第一位和XOR输出之间的正交相位关系导出旋转方向。 角位置传感器可以是NCAPS或MT-NCAPS。 可以使用线性位置传感器代替角位置传感器来产生PWM信号。

    Multi-turn non-contact angular position sensor
    4.
    发明申请
    Multi-turn non-contact angular position sensor 审中-公开
    多圈非接触角位置传感器

    公开(公告)号：US20070132449A1

    公开(公告)日：2007-06-14

    申请号：US11298086

    申请日：2005-12-08

    申请人： Asad Madni ,  Jim Vuong

    发明人： Asad Madni ,  Jim Vuong

    IPC分类号： G01B7/30

    CPC分类号： G01D5/246 ,  G01D5/04

    摘要： A multi-turn angular position sensor for generating a pulse width modulated (PWM) output corresponding to greater than a 360 degree turn of a shaft. The angular position sensor includes main, first and second gears and first and second angular position sensor assemblies. The main gear can be mounted on the shaft and has a plurality of teeth formed around its periphery. The first and second gears respectively have first and second teeth that are engaged with the main gear teeth. The first and second angular position sensor assemblies respectively include first and second coupler disks coupled to rotate together respectively with the first and second gears. The first and second angular position sensor assemblies generate first and second output signals corresponding to a single 360 degree turn of the first and second coupler disks, respectively. A PWM generator generates the PWM output according to the first and second output signals.

    摘要翻译： 一种用于产生对应于轴的360度转的脉冲宽度调制（PWM）输出的多转角度位置传感器。 角位置传感器包括主，第一和第二齿轮以及第一和第二角度位置传感器组件。 主齿轮可以安装在轴上，并且具有绕其周边形成的多个齿。 第一和第二齿轮分别具有与主齿轮齿啮合的第一和第二齿。 第一和第二角度位置传感器组件分别包括联接成分别与第一和第二齿轮一起旋转的第一和第二联接器盘。 第一和第二角度位置传感器组件分别产生对应于第一和第二联接器盘的单个360度转弯的第一和第二输出信号。 PWM发生器根据第一和第二输出信号产生PWM输出。

    Programmable, multi-turn, pulse width modulation circuit for a non-contact angular position sensor
    5.
    发明申请
    Programmable, multi-turn, pulse width modulation circuit for a non-contact angular position sensor 有权
    用于非接触角度位置传感器的可编程，多圈，脉宽调制电路

    公开(公告)号：US20050212577A1

    公开(公告)日：2005-09-29

    申请号：US10813329

    申请日：2004-03-29

    申请人： Asad Madni ,  Jim Vuong ,  Philip Vuong

    发明人： Asad Madni ,  Jim Vuong ,  Philip Vuong

    IPC分类号： G01D5/245 ,  G01D5/20 ,  H02M1/12

    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。

    Voice coil actuator with embedded capacitive sensor for motion, position and/or acceleration detection
    7.
    发明申请
    Voice coil actuator with embedded capacitive sensor for motion, position and/or acceleration detection 有权
    具有嵌入式电容传感器的音圈执行器，用于运动，位置和/或加速度检测

    公开(公告)号：US20070003099A1

    公开(公告)日：2007-01-04

    申请号：US11159572

    申请日：2005-06-21

    申请人： Asad Madni ,  Jim Vuong ,  Robert Hansen

    发明人： Asad Madni ,  Jim Vuong ,  Robert Hansen

    IPC分类号： 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。