公开(公告)号：US20040056652A1

公开(公告)日：2004-03-25

申请号：US10666165

申请日：2003-09-19

Inventor： Timothy J. Bomya

IPC: G01B007/14 ,  G08B013/24 ,  B60Q001/00

CPC classification number: G01B7/24 ,  B60R21/0134 ,  B60R21/0136 ,  B60R2021/0004 ,  B60R2021/0006 ,  B60R2021/01027 ,  G01D5/2013 ,  G01D5/2046

Abstract: A coil is operatively associated with a magnetic circuit of a vehicle body, and is adapted to cooperate with a time-varying magnetic flux in the vehicle body that is responsive to a condition of the vehicle body sensed by the magnetic sensor. An electrical circuit is operatively coupled to the coil, and the coil in cooperation therewith exhibits a resonant or near-resonant condition in association with the time-varying magnetic flux for at least one condition of the vehicle body. In one embodiment, a signal from an oscillator is applied to the series combination of a capacitor and the coil, which generates an oscillatory magnetic flux in the magnetic circuit. In another embodiment, a second capacitor is connected in parallel with a second coil which operates in a resonant or near-resonant condition responsive to the oscillatory magnetic flux in the magnetic circuit.

Abstract translation: 线圈与车体的磁路可操作地相关联，并且适于与车身中随时间变化的磁通量相配合，该磁通量响应于由磁传感器感测到的车体的状况。 电路可操作地耦合到线圈，并且与其配合的线圈与车身的至少一个状态的时变磁通相关联地呈现谐振或近共振状态。 在一个实施例中，来自振荡器的信号被施加到电容器和线圈的串联组合，其在磁路中产生振荡磁通量。 在另一个实施例中，第二电容器与响应于磁路中的振荡磁通的共振或近共振状态的第二线圈并联连接。

公开(公告)号：US06707291B2

公开(公告)日：2004-03-16

申请号：US10334384

申请日：2002-12-31

Applicant: Atsutoshi Goto ,  Kazuya Sakamoto ,  Hiroshi Sakamoto

Inventor： Atsutoshi Goto ,  Kazuya Sakamoto ,  Hiroshi Sakamoto

IPC: G01B714

CPC classification number: G01D5/2013 ,  G01D3/0365 ,  G01D5/202

Abstract: Single coil to be excited by a predetermined A.C. signal is provided, with no secondary coil being provided. Magnetism-responsive member is movable relative to the coil so that a self-inductance of the coil progressively increases or decreases in response to displacement of an object to be detected within a predetermined range and a voltage of the coil corresponding to the self-inductance is produced. Predetermined reference voltage is generated and subjected to analog operations with the coil output voltage, to thereby generate first and second A.C. outputs having, as amplitude coefficients, first and second cyclic amplitude functions correlated to the position to be detected. The position is detected on the basis of the phase component of the amplitude coefficient functions. Combination of two coils and one reference voltage may be employed.

Abstract translation: 提供要由预定交流信号激发的单线圈，没有提供次级线圈。 磁性响应元件相对于线圈是可移动的，使得线圈的自感随着被测物体在预定范围内的位移而逐渐增大或减小，并且与自感相对应的线圈电压为 生产。 产生预定的参考电压并对线圈输出电压进行模拟操作，从而产生具有与要检测的位置相关的第一和第二循环振幅函数作为幅度系数的第一和第二A.C.输出。 基于振幅系数函数的相位分量来检测位置。 可以组合两个线圈和一个参考电压。

公开(公告)号：US06674279B2

公开(公告)日：2004-01-06

申请号：US10142095

申请日：2002-05-09

Applicant: Gregory J. Manlove ,  Kevin M. Gertiser ,  James C. Bach ,  Gerald A Kilgour

Inventor： Gregory J. Manlove ,  Kevin M. Gertiser ,  James C. Bach ,  Gerald A Kilgour

IPC: G01P348

CPC classification number: G01D5/2013 ,  G01D3/02 ,  G01P3/487 ,  G01P3/488 ,  G01P3/489

Abstract: A variable reluctance sensor interface module having a variable attenuation circuit and a rectifier and differential to single-ended conversion circuit for operating in a current mode to attenuate a differential input voltage. The variable attenuation circuit receives an input differential voltage from a magnetic sensor, converts the differential voltage to current, and variably attenuates the current. The rectifier and differential to single-ended conversion circuit converts the variably attenuated current to a voltage output. The input circuit includes an RC filter that attenuates high frequency signals. An initial threshold circuit generates an initial threshold voltage that compensates for internal resistance variations.

Abstract translation: 一种可变磁阻传感器接口模块，具有可变衰减电路和整流器和差分到单端转换电路，用于在电流模式下工作以衰减差分输入电压。 可变衰减电路接收来自磁传感器的输入差分电压，将差分电压转换为电流，并可变地衰减电流。 整流器和差分至单端转换电路将可变衰减电流转换为电压输出。 该输入电路包括一个衰减高频信号的RC滤波器。 初始阈值电路产生补偿内部电阻变化的初始阈值电压。

公开(公告)号：US06640451B1

公开(公告)日：2003-11-04

申请号：US09496021

申请日：2000-06-14

Applicant: Edward John Vinarcik

Inventor： Edward John Vinarcik

IPC: G01B700

CPC classification number: G01D5/2457 ,  F02P7/0675 ,  G01D5/2013 ,  Y10S33/01 ,  Y10T29/49007

Abstract: The present invention relates to a system and method for sensing the angular position of a rotatable member. The system and method employ the use of a composite rotatable member comprising a solidifiable material and a magnetically attractable particulate material. The rotatable member has a major body portion and at least one magnetically detectable reference point. The reference point has a first magnetic property and the major body portion has a second magnetic property, different from the first magnetic property. A magnetic property sensor is fixed relative to the rotatable member to detect the passage of the reference point within the rotatable member. The sensor produces a signal in response to the passage of the reference point. A central processing unit is provided for determining the angular position of the rotatable member in response to the signal generated by the sensor.

Abstract translation: 本发明涉及一种用于感测可旋转构件的角位置的系统和方法。 该系统和方法采用包含可固化材料和可磁性吸引的颗粒材料的复合可旋转构件。 可旋转构件具有主体部分和至少一个磁性可检测参考点。 参考点具有第一磁性，并且主体部具有与第一磁性不同的第二磁性。 磁性传感器相对于可旋转构件固定，以检测参考点在可旋转构件内的通过。 传感器响应于参考点的通过而产生信号。 中央处理单元被提供用于响应于由传感器产生的信号来确定可旋转构件的角位置。

公开(公告)号：US20020175812A1

公开(公告)日：2002-11-28

申请号：US10102964

申请日：2002-03-22

Applicant: Bernstein AG

Inventor： Andreas Hofmann ,  Matthias Kruhler

IPC: G08B013/08

CPC classification number: G01D5/2013 ,  B66B13/26 ,  E05Y2400/354 ,  E05Y2400/51 ,  E05Y2900/104 ,  G01D11/245 ,  G08B13/08 ,  H03K17/954

Abstract: Inductive safety sensor for monitoring the condition of doors and gates, particularly of elevators, having a sensor device for sensing a target which is designed such that it emits a signal only when sensing a target made of a defined material and switches from a first constant current to another constant current when the target is sensed.

Abstract translation: 用于监测门和门（特别是电梯）的状况的感应安全传感器，其具有用于感测目标的传感器装置，该传感器装置被设计成仅当感测由限定材料制成的目标并从第一恒定电流切换时发出信号 到目标被感测到的另一恒定电流。

公开(公告)号：US20010043124A1

公开(公告)日：2001-11-22

申请号：US09755343

申请日：2001-01-05

Inventor： Steven R. Hilliard ,  Geoffrey W. Hilliard

IPC: G08G001/042 ,  H03B005/08

CPC classification number: G01D5/2013 ,  G01R27/2611 ,  G08G1/042

Abstract: An oscillator circuit for use with a wire-loop inductive sensor and method for use. The oscillator circuit highly attenuates common-mode noise detected by the wire-loop and differential noise from both ambient and crosstalk sources are filtered by active isolation.

Abstract translation: 一种用于线圈感应传感器的振荡器电路及其使用方法。 振荡器电路高度衰减由线环检测到的共模噪声，并且通过主动隔离对来自环境和串扰源的差分噪声进行滤波。

公开(公告)号：US06253460B1

公开(公告)日：2001-07-03

申请号：US09329484

申请日：1999-06-10

Applicant: Geoffrey W. Schmitz

Inventor： Geoffrey W. Schmitz

IPC: G01B714

CPC classification number: G01D5/2013 ,  G01D5/145

Abstract: An apparatus, system and method for determining the position for translating, rotating and complex motion generating shaft elements are provided. A layer may be deposited over an exterior surface of the shaft element containing a known surface geometry to provide for monitoring displacement using one or more proximity sensors. The proximity sensor detects any change in the distance between the sensor and the exterior surface geometry of the shaft element. The shaft element may alternatively be magnetized for use with magnetic sensors. The gap dimension is proportional to and/or indicative of the absolute position.

Abstract translation: 提供了一种用于确定平移，旋转和复合运动产生轴元件的位置的装置，系统和方法。 层可以沉积在包含已知表面几何形状的轴元件的外表面上，以提供使用一个或多个接近传感器监测位移。 接近传感器检测传感器与轴元件的外表面几何形状之间的距离的任何变化。 轴元件可替代地被磁化以与磁传感器一起使用。 间隙尺寸与绝对位置成比例和/或指示绝对位置。

公开(公告)号：US06204659B1

公开(公告)日：2001-03-20

申请号：US09196137

申请日：1998-11-20

Applicant: Masahiro Yamamoto

Inventor： Masahiro Yamamoto

IPC: G01B714

CPC classification number: G01D5/2013 ,  G01B7/026 ,  G01R27/2611

Abstract: An inductance change detection circuit for detecting a change in inductance with a simple circuit design, having a series circuit having a resistor and a coil of which an inductance changes according to a position of an object; a pulse power supply 1 for applying a pulse voltage to the series circuit; a first signal generator for generating a first signal when an output voltage of the resistor in the series circuit becomes a specific voltage level; a second signal generator for generating a second signal responsive to a pulse voltage of the pulse power supply; and a comparison pulse generator for generating a pulse signal having a duty ratio responsive to the coil inductance based on the first signal and second signal.

Abstract translation: 一种用于通过简单的电路设计来检测电感变化的电感变化检测电路，具有串联电路，该串联电路具有电阻器和根据物体的位置电感而变化的线圈; 用于向串联电路施加脉冲电压的脉冲电源1; 第一信号发生器，用于当串联电路中的电阻器的输出电压变为特定电压电平时产生第一信号; 第二信号发生器，用于响应脉冲电源的脉冲电压产生第二信号; 以及比较脉冲发生器，用于基于第一信号和第二信号产生具有响应于线圈电感的占空比的脉冲信号。

公开(公告)号：US6157187A

公开(公告)日：2000-12-05

申请号：US138350

申请日：1998-08-21

Applicant: Wolfgang Piesch

Inventor： Wolfgang Piesch

IPC: B60T8/171 ,  G01D5/20 ,  G01P3/488 ,  G01P3/84

CPC classification number: G01D5/2013 ,  B60T8/171 ,  G01P3/488

Abstract: The inductive wheel-speed sensor registers the rotational speed of a motor vehicle wheel. The wheel is mounted on a hub, which is rotatably mounted on an axle journal. The sensor has a transmitter wheel that rotates with the wheel and that is formed by a sequence of regions of magnetizable material separated from one another by regions of non-magnetizable or barely magnetizable material. Two magnets are stationarily mounted such that their magnetic flux varies as the magnetized and non-magnetized portions of the transmitter wheel pass by, as the wheel rotates. The variation depends on the rotational speed. The magnetic flux change in the two (or more) magnets is registered coils which are disposed in the vicinity of the magnets. The output signal of the coils is fed to an evaluation device. Mounting is facilitated, an improved signal is provided, and temperature influences due to braking are reduced in that the transmitter wheel is disposed outside of the hub, remote from the wheel, and the magnet and coil pairs are mounted on the axle journal immediately adjacent to the transmitter wheel but separated from the latter by a narrow gap. The magnets are spaced from one another such that one magnet faces a magnetizable region while the other magnet faces a non-magnetizable region of the transmitter wheel.

Abstract translation: 感应式车轮速度传感器记录机动车轮的转速。 车轮安装在轮毂上，轮毂可旋转地安装在轴颈上。 传感器具有与轮一起旋转的发射器轮，并且其由可磁化材料的一系列区域形成，所述可磁化材料由不可磁化或几乎不可磁化的材料的区域彼此分开。 两个磁体被固定地安装，使得它们的磁通量随着发动机轮的磁化和非磁化部分经过随着轮子转动而变化。 变化取决于转速。 两个（或更多个）磁体中的磁通量变化是设置在磁体附近的注册线圈。 线圈的输出信号被馈送到评估装置。 安装便利，提供了改进的信号，并且由于制动而导致的温度影响减小，因为发射机轮设置在轮毂外部，远离车轮，并且磁体和线圈对安装在紧邻的轴颈上 发射机轮，但与后者分开狭窄的间隙。 磁体彼此间隔开，使得一个磁铁面对可磁化区域，而另一个磁体面对发射器轮的不可磁化区域。

公开(公告)号：US6107794A

公开(公告)日：2000-08-22

申请号：US941985

申请日：1997-10-01

Applicant: Ronald William Kipp ,  Steven Anthony Marinelli ,  Paul Eugene Vaughn ,  Wayne Alan Fearn

Inventor： Ronald William Kipp ,  Steven Anthony Marinelli ,  Paul Eugene Vaughn ,  Wayne Alan Fearn

IPC: G01B7/00 ,  F04D13/06 ,  F04D15/00 ,  G01B7/02 ,  G01B7/14 ,  G01B7/312 ,  G01D5/20 ,  G01P13/04 ,  G01B7/30 ,  G01D5/12

CPC classification number: G01B7/312 ,  F04D13/0633 ,  F04D13/064 ,  F04D15/0088 ,  F04D15/0094 ,  G01B7/02 ,  G01B7/14 ,  G01D5/2013 ,  G01P13/04

Abstract: A system for sensing a position of a body rotating about an axis, the system including at least one inductive sensor positioned in proximity to the body, each of the at least one inductive sensor providing an output; material forming part of the body for effecting a variation in the output of the at least one inductive sensor as a function of axial movement of the body relative to the axis; circuitry for analyzing the output of the at least one inductive sensor to produce a system output indicative of the axial movement.

Abstract translation: 一种用于感测围绕轴旋转的身体的位置的系统，所述系统包括位于身体附近的至少一个感应传感器，所述至少一个感应传感器中的每一个提供输出; 形成所述主体的一部分的材料，用于根据所述主体相对于所述轴线的轴向运动来实现所述至少一个感应传感器的输出的变化; 用于分析所述至少一个感应传感器的输出以产生指示轴向运动的系统输出的电路。