公开(公告)号：US08183854B2

公开(公告)日：2012-05-22

申请号：US12267517

申请日：2008-11-07

申请人： Alexei V. Filatov

发明人： Alexei V. Filatov

IPC分类号： G01P3/46

CPC分类号： G01P3/52 ,  F16C32/0446 ,  F16C32/0476 ,  H02K11/225 ,  H02K41/02

摘要： An apparatus for measuring linear velocity of a movable element relative to a stationary element includes a magnetic element fixed in relation to the stationary element. A soft-magnetic yoke is fixed in relation to the movable element to move with the movable element and is in non-contact relation with the magnetic element. A yoke pole is positioned proximate to the magnetic element and spaced therefrom by an air gap. The pole is magnetically coupled to the magnetic element so that a magnetic flux is generated in the air gap substantially orthogonal to the axis of motion. A conductive coil is coiled around a coil axis and is fixed in relation to the stationary element with the coil axis substantially parallel to the axis of movement. The coil is in non-contact relation with the yoke and resides between the magnetic element and the pole of the yoke in the magnetic flux.

摘要翻译： 用于测量可移动元件相对于静止元件的线速度的装置包括相对于固定元件固定的磁性元件。 软磁轭相对于可动元件固定，与可动元件一起移动，并与磁性元件非接触。 轭极定位成靠近磁性元件并与气隙隔开。 磁极磁耦合到磁性元件，使得在大致正交于运动轴线的气隙中产生磁通量。 导电线圈围绕线圈轴线盘绕并且相对于固定元件固定，线圈轴线基本上平行于运动轴线。 线圈与磁轭非接触关系，位于磁性元件和磁轭的磁轭之间。

公开(公告)号：USH2265H

公开(公告)日：2011-12-06

申请号：US80526407

申请日：2007-05-16

申请人： FOUSE TIMOTHY M ,  CANADAY MICHAEL M ,  MUNDELL STEVEN W ,  BOWEN JR JOHN R ,  HAMEL MICHAEL JOHN ,  US NAVY

发明人： FOUSE TIMOTHY M ,  CANADAY MICHAEL M ,  MUNDELL STEVEN W ,  BOWEN JR JOHN R ,  HAMEL MICHAEL JOHN

IPC分类号： G01L5/14

CPC分类号： G01P3/52 ,  F42B12/365 ,  F42B15/08 ,  F42B35/00 ,  G01D5/2013 ,  G01D5/202 ,  G01P15/16

摘要： A differential variable reluctance transducer (DVRT) is provided to measure a translation parameter, such as acceleration and/or deceleration of a test projectile. The DVRT, contained in a canister of the projectile, includes a cylindrical housing and an electronics module. The housing defines a cavity containing insulation and a bobbin around which a wire coil is wrapped. The housing has an attachment end and a distal end that faces the acceleration indicator. The bobbin is disposed substantially collinear to the housing. The wire coil is helically disposed around the bobbin. The insulation fills the remainder of the cavity. The electronics module receives electric current from the wire coil and connects to a data recorder.

摘要翻译： 提供差分可变磁阻传感器（DVRT）来测量平移参数，例如测试射弹的加速度和/或减速度。 包含在弹丸筒中的DVRT包括圆柱形壳体和电子模块。 壳体限定了包含绝缘体的空腔和绕线器绕线圈，线圈缠绕在该线圈上。 壳体具有面向加速度指示器的附接端和远端。 线轴被布置成基本上与壳体共线。 线圈绕线圈螺旋设置。 绝缘体填充空腔的其余部分。 电子模块从线圈接收电流并连接到数据记录器。

公开(公告)号：US20110219876A1

公开(公告)日：2011-09-15

申请号：US12720813

申请日：2010-03-10

申请人： Alexander KALNITSKY ,  Fu-Lung HSUEH

发明人： Alexander KALNITSKY ,  Fu-Lung HSUEH

IPC分类号： G01P15/125

CPC分类号： G01B7/003 ,  A63F13/06 ,  A63F13/211 ,  A63F13/24 ,  A63F2300/1043 ,  A63F2300/105 ,  G01P3/52 ,  G01P15/125 ,  G01P15/16

摘要： An apparatus for detecting mechanical displacement in a micro-electromechanical system includes a capacitor having first and second plates spaced from one another, the first and second plates having different work functions and being electrically connected with each other. The capacitor plates are movable with respect to one another such that a spacing between the plates changes in response to a force. A current through the capacitor represents a rate of change in the spacing between the plates at a given time.

摘要翻译： 一种用于检测微机电系统中的机械位移的装置包括具有彼此间隔开的第一和第二板的电容器，所述第一和第二板具有不同的功函数并且彼此电连接。 电容器板可以相对于彼此移动，使得板之间的间隔响应于力而变化。 通过电容器的电流表示给定时间间板间距的变化率。

公开(公告)号：US20100117627A1

公开(公告)日：2010-05-13

申请号：US12267517

申请日：2008-11-07

申请人： Alexei V. Filatov

发明人： Alexei V. Filatov

IPC分类号： G01P3/52 ,  H02K41/035 ,  H02K11/00

CPC分类号： G01P3/52 ,  F16C32/0446 ,  F16C32/0476 ,  H02K11/225 ,  H02K41/02

摘要： An apparatus for measuring linear velocity of a movable element relative to a stationary element includes a magnetic element fixed in relation to the stationary element. A soft-magnetic yoke is fixed in relation to the movable element to move with the movable element and is in non-contact relation with the magnetic element. A yoke pole is positioned proximate to the magnetic element and spaced therefrom by an air gap. The pole is magnetically coupled to the magnetic element so that a magnetic flux is generated in the air gap substantially orthogonal to the axis of motion. A conductive coil is coiled around a coil axis and is fixed in relation to the stationary element with the coil axis substantially parallel to the axis of movement. The coil is in non-contact relation with the yoke and resides between the magnetic element and the pole of the yoke in the magnetic flux.

摘要翻译： 用于测量可移动元件相对于静止元件的线速度的装置包括相对于固定元件固定的磁性元件。 软磁轭相对于可动元件固定，与可动元件一起移动，并与磁性元件非接触。 轭极定位成靠近磁性元件并与气隙隔开。 磁极磁耦合到磁性元件，使得在大致正交于运动轴线的气隙中产生磁通量。 导电线圈围绕线圈轴线盘绕并且相对于固定元件固定，线圈轴线基本上平行于运动轴线。 线圈与磁轭非接触关系，位于磁性元件和磁轭的磁轭之间。

公开(公告)号：US5469052A

公开(公告)日：1995-11-21

申请号：US73829

申请日：1993-06-08

申请人： Rand H. Hulsing, II

发明人： Rand H. Hulsing, II

IPC分类号： G01P3/46 ,  G01P3/52 ,  G01P3/58 ,  G01P3/48 ,  G01P3/54

CPC分类号： G01P3/58 ,  G01P3/46 ,  G01P3/52

摘要： The invention comprises a velocity sensor (10, 30, 50, 60, 70, 110) that measures velocity in only one degree of freedom and is insensitive to the other five degrees of freedom. The velocity sensor uses differential flux splitting, and by sensing changes in flux, common mode effects are removed. In practicing the invention, a permanent magnet (17, 33, 55, 65, 71, 131) is used to create a flux field, and multiple return paths are used to split the flux. A plurality of pole pieces (20-21, 39-40, 58-59, 66-67, 72-73, 111-112) simultaneously move an equal amount in relation to the return paths for differentially varying the amount of flux carried by each return path (13-14, 34-36, 52-53, 63-64, 73A-C and 75A-C, 115-117), to thereby induce a differential voltage in secondary coils (15-16, 37-38, 56-57, 68-69, 80-83 and 90-93, 140-143 and 150-153). Detection means (not shown) is used to sense the change in voltage and provide an indication of the sensed velocity. The pole pieces and return paths are overlapped by an amount to ensure that one may move relative to the other a limited extent in directions not parallel to the sensitive axis without effecting a change in the net overlapped area, and the coils are arranged in series-connected, oppositely wound pairs so that common mode error signals are cancelled.

摘要翻译： 本发明包括速度传感器（10,30,50,60,70,110），该速度传感器仅在一个自由度上测量速度，并且对另外五个自由度不敏感。 速度传感器使用差分磁通分裂，并通过检测通量的变化，消除共模效应。 在实施本发明时，使用永磁体（17,33,55,65,71,131）来产生磁通场，并且使用多个返回路径来分离磁通。 多个极片（20-21,39-40,58-59,66-67,72-73,111-112）同时相对于返回路径移动相等量的量来差异地改变由 每个返回路径（13-14,34-36,52-53,63-64,73A-C和75A-C，115-117），从而在次级线圈（15-16,37-38）中感应出差分电压 ，56-57,68-69,80-83和90-93,140-143和150-153）。 检测装置（未示出）用于感测电压变化并提供感测速度的指示。 极片和返回路径重叠一定量，以确保可以相对于另一个移动相对于另一个的有限程度在不平行于敏感轴的方向上，而不会影响网络重叠区域的变化，并且线圈被串联布置， 连接的，相对缠绕的对，使得共模误差信号被取消。

公开(公告)号：US5451870A

公开(公告)日：1995-09-19

申请号：US927122

申请日：1992-08-07

申请人： Ludger Gesenhues ,  Reinhard Holscher ,  Hans-Jurgen Hoffmann ,  Zhen Huang ,  Klaus Schmidt

发明人： Ludger Gesenhues ,  Reinhard Holscher ,  Hans-Jurgen Hoffmann ,  Zhen Huang ,  Klaus Schmidt

IPC分类号： B60G17/00 ,  B60G17/015 ,  B60G17/019 ,  F16F9/32 ,  G01M17/04 ,  G01P3/52 ,  B60G17/08 ,  G01B7/14

CPC分类号： B60G17/01933 ,  F16F9/3207 ,  G01P3/52 ,  B60G2204/112 ,  B60G2400/202 ,  B60G2600/24 ,  F16F2230/08

摘要： A sensor for measuring the difference between the velocity and/or position of a vibration-suppressing cylinder and that of a piston connected to a piston rod and moving back and forth inside the cylinder in a dashpot for motor vehicles. The sensor consists of a permanent magnet and of a winding in the form of a cylindrical coil and operating in conjunction with the magnet. The magnet is connected directly or indirectly to one of the mutually moving components and the winding is connected directly or indirectly to the other. The component that the magnet (5) rests against and the component that the winding (7) rests against constitute a complete circuit that carries the magnet's field.

摘要翻译： 一种传感器，用于测量振动抑制气缸的速度和/或位置与连接到活塞杆的活塞之间的差异，并且用于机动车辆的缓冲器中的气缸内前后移动。 传感器由永磁体和圆柱形线圈形式的绕组组成，并与磁铁一起工作。 磁体直接或间接地连接到相互移动的部件中的一个，并且绕组直接或间接地连接到另一个。 磁体（5）靠在的部件和绕组（7）所在的部件构成一个承载磁场的完整电路。

公开(公告)号：US5353174A

公开(公告)日：1994-10-04

申请号：US668773

申请日：1991-03-13

申请人： Hisatoshi Uno

发明人： Hisatoshi Uno

IPC分类号： G01P3/48 ,  G01P3/52 ,  G11B21/08 ,  H02P29/00 ,  G11B5/55

CPC分类号： G01P3/52 ,  G11B21/083

摘要： A motor speed control system is disclosed as adapted for the traveling speed control of a transducer on a pivotal support beam driven by a voice coil motor in a rotating disk data storage apparatus. The speed control system includes a speed sensor having a speed sensing coil for electromagnetically generating a motor speed signal representative of the actual traveling speed of the transducer. Since the speed sensing coil is of necessity disposed adjacent the drive coil of the voice coil motor, the motor speed signal contains a noise component due to the mutual induction between the two coils. For the elimination of the noise component from the motor speed signal, which is to be utilized for the feedback speed control of the voice coil motor, a differentiator circuit is provided for deriving a noise suppression signal, which is equivalent to the noise component, from a motor speed control signal representative of the desired traveling speed of the transducer. Both the motor speed signal and the noise suppression signal are directed to a differential amplifier whereby a is noise-free motor speed signal is obtained. A second differential amplifier inputs both this noise-free Motor speed signal and the motor speed control signal for providing an output proportional to the difference therebetween. This output is supplied to a motor driver circuit for driving the voice coil motor accordingly.

摘要翻译： 公开了一种电动机速度控制系统，适用于在旋转磁盘数据存储装置中由音圈电动机驱动的枢转支撑梁上的换能器的行进速度控制。 速度控制系统包括速度传感器，其具有速度感测线圈，用于电磁地产生代表换能器的实际行进速度的电机速度信号。 由于速度感测线圈必须配置在音圈马达的驱动线圈附近，电机速度信号由于两个线圈之间的相互感应而包含噪声成分。 为了消除来自用于音圈电机的反馈速度控制的电机速度信号的噪声分量，提供了一个微分电路，用于从噪声分量得到相当于噪声分量的噪声抑制信号， 代表换能器所需行进速度的电机速度控制信号。 电动机速度信号和噪声抑制信号都被引导到差分放大器，从而获得无噪声的电动机速度信号。 第二差分放大器输入这个无噪声电动机速度信号和电动机速度控制信号，以提供与它们之间的差异成正比的输出。 该输出被提供给用于驱动音圈电动机的电动机驱动电路。

公开(公告)号：US3928801A

公开(公告)日：1975-12-23

申请号：US52433574

申请日：1974-11-15

申请人： UNIV JOHNS HOPKINS

发明人： HILL MAYNARD L

IPC分类号： B64D45/00 ,  G01P3/42 ,  G01P3/52 ,  G01R5/28

CPC分类号： G01P3/52 ,  G01P3/42

摘要： A method and apparatus for utilizing the earth''s static electric field as a reference for generating an information-bearing electrical signal. In a particular embodiment, the invention provides a differential static voltmeter having spaced voltage sensing probes and a differential static amplifier which determines the difference in voltage sensed by the probes. Since the probes measure the static voltage which occurs as a vertically-oriented gradient in the earth''s atmosphere, the voltage difference signal produced by the differential static amplifier is a measure of the disposition of the probes relative to a line usually parallel to the earth''s surface, the voltmeter thereby being particularly useful as a pitch and roll stabilization reference and control system for airborne vehicles. In other embodiments, the invention also provides apparatus for defining a horizontal reference plane in the atmosphere and apparatus for sensing the roll or pitch rate of an airborne vehicle.

摘要翻译： 一种利用地球静电场作为产生信息载运电信号的基准的方法和装置。 在一个特定的实施例中，本发明提供一种差分静态电压表，其具有间隔的电压感测探针和一个差分静态放大器，该差分静态放大器确定由探针感测的电压差。 由于探头测量作为地球大气中的垂直取向梯度发生的静态电压，由差动静态放大器产生的电压差信号是探头相对于通常平行于地球表面的线的布置的度量， 因此，电压表特别适用于用于机载车辆的俯仰和摇摆稳定参考和控制系统。 在其它实施例中，本发明还提供了用于在大气中定义水平参考平面的装置和用于感测机载车辆的滚动或俯仰速率的装置。

公开(公告)号：US3868074A

公开(公告)日：1975-02-25

申请号：US30136372

申请日：1972-10-27

申请人： UNIV JOHNS HOPKINS

发明人： HILL MAYNARD L

IPC分类号： B64C17/00 ,  B64D45/00 ,  G01C9/18 ,  G01C21/00 ,  G01P3/42 ,  G01P3/52 ,  G01R29/12 ,  B64C13/18

CPC分类号： G01R29/12 ,  G01C9/18 ,  G01P3/42 ,  G01P3/52

摘要： A method and apparatus for utilizing the earth''s static electric field as a reference for generating an information-bearing electrical signal. In a particular embodiment, the invention provides a differential static voltmeter having spaced voltage sensing probes and a differential static amplifier which determines the difference in voltage sensed by the probes. Since the probes measure the static voltage which occurs as a vertically oriented gradient in the earth''s atmosphere, the voltage difference signal produced by the differential static amplifier is a measure of the disposition of the probes relative to a line usually parallel to the earth''s surface, the voltmeter thereby being particularly useful as a pitch and roll stabilization reference and control system for airborne vehicles. In other embodiments, the invention also provides apparatus for defining a horizontal reference plane in the atmosphere and apparatus for sensing the roll or pitch rate of an airborne vehicle.

摘要翻译： 一种利用地球静电场作为产生信息载运电信号的基准的方法和装置。 在一个特定的实施例中，本发明提供一种差分静态电压表，其具有间隔的电压感测探针和一个差分静态放大器，该差分静态放大器确定由探针感测的电压差。 由于探头测量作为地球大气中的垂直取向梯度发生的静态电压，差动静态放大器产生的电压差信号是探头相对于通常平行于地球表面的线的布置的度量， 电压表因此特别适用于用于机载车辆的俯仰和摇摆稳定参考和控制系统。 在其它实施例中，本发明还提供了用于在大气中定义水平参考平面的装置和用于感测机载车辆的滚动或俯仰速率的装置。

公开(公告)号：US3609548A

公开(公告)日：1971-09-28

申请号：US3609548D

申请日：1968-11-05

申请人： IMPROVED MACHINERY INC

发明人： ALLARD HARRIE M ,  CARLSON JOHN F ,  GODLEY PHILIP

IPC分类号： G01P3/52 ,  G01P3/56

CPC分类号： G01P3/52

摘要： This is an apparatus for monitoring the movement of a moveable member which moves from an initial position to a second position at varying speeds. A timer is actuated when the member moves from its initial position. A component in an electrical circuit connected to the member produces an electrical signal proportional to the instantaneous position of the member. An electrical indication which is responsive to the signal produces a final indication at the end of a predetermined time period which is a function of the speeds of the member. A low alarm is actuated or a high alarm is actuated if the distance of the moveable member from the initial position at the end of the predetermined time period is less or more respectively than desired.