公开(公告)号：US06911830B2

公开(公告)日：2005-06-28

申请号：US10226100

申请日：2002-08-22

申请人： Joseph Pierre Heremans ,  Su-Chee Simon Wang ,  Thaddeus Schroeder ,  Louis L. Nagy

发明人： Joseph Pierre Heremans ,  Su-Chee Simon Wang ,  Thaddeus Schroeder ,  Louis L. Nagy

IPC分类号： G01N27/06 ,  G01N33/28 ,  G01R27/08

CPC分类号： G01N27/06 ,  G01N33/2888

摘要： A method by which contaminant (soot) content in Diesel engine oil is determined using electrical conductivity measurements of the Diesel oil at a high frequency, or by which contaminant (soot and/or water and/or anitfreeze) content is determined using the ratio of electrical conductivity measurements of the Diesel oil at a high frequency to the electrical conductivity measurements of the Diesel oil at a low frequency. Both the conductivity ratio and the high frequency conductivity are essentially independent of the brand of oil. High frequency is defined to be above 2 MHz whereas low frequency is defined to be D.C. to about 1 kHz.

摘要翻译： 柴油发动机油中的污染物（烟灰）含量的测定方法是使用高频下的柴油的电导率测量值来确定，或者使用其中的比例来确定污染物（烟灰和/或水和/或防冻）含量 高频柴油机的电导率测量值与低频柴油机的电导率测量值。 导电率和高频率电导率都基本上与油品牌无关。 高频被定义为高于2MHz，而低频被定义为D.C.至大约1kHz。

公开(公告)号：US20050068022A1

公开(公告)日：2005-03-31

申请号：US10675694

申请日：2003-09-30

申请人： Avoki Omekanda ,  Bruno Lequesne ,  Thaddeus Schroeder

发明人： Avoki Omekanda ,  Bruno Lequesne ,  Thaddeus Schroeder

IPC分类号： G01B7/30 ,  G01D5/14 ,  G01D5/16 ,  G01P3/488

CPC分类号： G01P3/488 ,  G01D5/147

摘要： A magnetic sensor has magnetically sensitive element located at a side surface, instead of the bottom surface, of a bias magnet, the magnet being located adjacent a magnetic target wheel, wherein the bias magnet is magnetized parallel to the direction of motion of the teeth/slots of the target wheel. The output may be of a single or double frequency. Sampling of output slope can provide information regarding direction of movement of the target wheel. In a second embodiment the bias magnet is magnetized perpendicular to the movement.

摘要翻译： 磁传感器具有位于偏置磁体的侧表面而不是底表面的磁敏元件，磁体位于磁性目标轮附近，其中偏置磁体被平行于齿/ 目标轮的槽。 输出可以是单频或双频。 输出斜率的采样可以提供目标车轮的运动方向信息。 在第二实施例中，偏置磁体垂直于该运动被磁化。

公开(公告)号：US20050007104A1

公开(公告)日：2005-01-13

申请号：US10615561

申请日：2003-07-08

申请人： Bruno Lequesne ,  Avoki Omekanda ,  Thaddeus Schroeder

发明人： Bruno Lequesne ,  Avoki Omekanda ,  Thaddeus Schroeder

IPC分类号： G01B7/30 ,  G01D5/14 ,  G01D5/16

CPC分类号： G01D5/145

摘要： A sensor assembly for sensing angular position of an object is provided. The assembly may comprise at least one magneto-sensing element having a first axis of rotation. The assembly may further comprise a magnet having a second axis of rotation. At least one of the magnet and the magneto-sensing element are rotatable relative to the other. The respective axes of rotation of the magneto-sensing element and the magnet are non-coincident with respect to one another. The magnet is magnetized along one of the following directions: an axial direction and a radial direction.

摘要翻译： 提供了一种用于感测物体的角度位置的传感器组件。 组件可以包括具有第一旋转轴线的至少一个磁感应元件。 组件还可以包括具有第二旋转轴线的磁体。 磁体和磁感应元件中的至少一个可相对于另一个旋转。 磁感测元件和磁体的各个旋转轴线彼此不重合。 磁体沿着以下方向之一被磁化：轴向和径向。

公开(公告)号：US06786084B2

公开(公告)日：2004-09-07

申请号：US10340970

申请日：2003-01-13

申请人： Thaddeus Schroeder ,  Earl D. Diem ,  Laci J. Jalics ,  Francis E. Szczublewski

发明人： Thaddeus Schroeder ,  Earl D. Diem ,  Laci J. Jalics ,  Francis E. Szczublewski

IPC分类号： G01M1500

CPC分类号： G01P3/22 ,  G01P3/44

摘要： Sensor assembly and method for non-intrusively sensing instantaneous speed of an engine are provided. The engine includes a crankshaft have a respective end connected to an externally accessible bolt. The sensor assembly comprises a housing including a recess configured to affixingly engage the externally accessible bolt. The sensor assembly further comprises at least one motion-sensing device configured to provide a respective output signal indicative of angular motion information of the crankshaft. A signal transmitter coupled to the motion-sensing device configured to wirelessly transmit the output signal from the motion-sensing device.

摘要翻译： 提供用于非侵入式感测发动机的瞬时速度的传感器组件和方法。 发动机包括具有连接到外部可接近的螺栓的相应端部的曲轴。 传感器组件包括壳体，该壳体包括被配置为固定地接合外部可接近的螺栓的凹部。 传感器组件还包括至少一个运动感测装置，其被配置为提供指示曲轴的角运动信息的相应输出信号。 耦合到所述运动感测装置的信号发射器，被配置为从所述运动感测装置无线地传输所述输出信号。

公开(公告)号：US06498482B2

公开(公告)日：2002-12-24

申请号：US09764566

申请日：2001-01-18

申请人： Thaddeus Schroeder

发明人： Thaddeus Schroeder

IPC分类号： B71

CPC分类号： G01D5/147

摘要： A single die MR sensor having three MR elements each being preferably composed of a number of serially connected MR segments for use in linear position sensing schemes. The MR sensor is, generally, aligned in the direction of movement of a magnetic target. The middle MR element is the actual position sensor. The two outer MR elements serve as reference sensors which sense the magnetic field at the limits of the position sensing range. The cooperating magnetic target assures that one of the two outer MR elements is always exposed to some maximum magnetic field, BMAX, corresponding to a position XMAX, and the other MR element is always exposed to some minimum magnetic field, BMIN, corresponding to a position XMIN, and wherein a portion of the middle MR element is exposed to BMAX and another portion of the middle MR element is exposed to BMIN, wherein the position, X, of the target is computed assuming uniformity of the middle MR element along its length.

摘要翻译： 具有三个MR元件的单芯片MR传感器各自优选地由用于线性位置感测方案的多个串联连接的MR片段组成。 通常，MR传感器在磁性靶的移动方向上对齐。 中间MR元件是实际位置传感器。 两个外部MR元件用作在位置感测范围的极限处感测磁场的参考传感器。 协作的磁性目标确保两个外部MR元件中的一个总是暴露于对应于位置XMAX的一些最大磁场BMAX，而另一个MR元件总是暴露于对应于位置的一些最小磁场BMIN XMIN，并且其中中间MR元件的一部分暴露于BMAX，并且中间MR元件的另一部分暴露于BMIN，其中假定中间MR元件沿着其长度的均匀性来计算目标的位置X.

公开(公告)号：US06346808B1

公开(公告)日：2002-02-12

申请号：US09515077

申请日：2000-02-28

申请人： Thaddeus Schroeder

发明人： Thaddeus Schroeder

IPC分类号： G01B714

CPC分类号： G01D5/145 ,  G01D5/147 ,  G01D5/2451 ,  G01P3/489 ,  G01P21/02

摘要： A method of accurately emulating any desired tooth/slot format of a desired target wheel from a predetermined tooth/slot arrangement of a rotating actual target wheel used in conjunction with an MR position sensor. The passage of two sequential slots of differing widths or two sequential teeth of differing widths of the actual target wheel determine the rising and falling edge of one tooth of the desired target wheel and define one tooth and one slot of the desired target wheel. The actual target wheel, has, preferably, 2n teeth and 2n slots of two distinct sequential widths whereby the desired target wheel is emulated to have n teeth and n slots. The two MRs of the position sensor are aligned in the circumferential direction of the actual target wheel so as to generate two angularly offset signals (first and second voltages, respectively) from the passage of a single slot of the actual target wheel. The offset signals are input to a signal conditioning circuit. Within the signal conditioning circuit, the two sensor signals (first and second voltages) are differentially amplified to produce a differential signal whereby the width of the slot is used to encode a binary position voltage, high or low. The two distinct sequential slot/tooth widths of the actual target wheel are used to identify a tooth edge of the desired target wheel as rising or falling and, hence, define the teeth and slots of the desired target wheel. Alternatively, the present invention could be implemented with width encoded teeth instead of width encoded slots.

摘要翻译： 从与MR位置传感器结合使用的旋转实际目标轮的预定齿/槽布置精确地仿真期望目标轮的任何期望的齿/槽格式的方法。 实际目标轮的不同宽度的两个连续的槽或两个连续的齿的通道确定了所需目标轮的一个齿的上升和下降边缘，并限定了所需目标轮的一个齿和一个槽。 实际的目标轮具有优选地具有两个不同顺序宽度的2n个齿和2n个槽，由此期望的目标轮被仿真以具有n个齿和n个槽。 位置传感器的两个MR在实际目标轮的圆周方向上对准，以便从实际目标轮的单个槽的通过产生两个角度偏移信号（分别为第一和第二电压）。 偏移信号被输入到信号调理电路。 在信号调理电路中，两个传感器信号（第一和第二电压）被差分放大以产生差分信号，由此槽的宽度用于对高或低的二进制位置电压进行编码。 实际目标轮的两个不同的顺序槽/齿宽用于将期望的目标轮的齿缘识别为上升或下降，并因此限定所需目标轮的齿和槽。 或者，本发明可以用宽度编码的齿代替宽度编码的时隙来实现。

公开(公告)号：US06272747B1

公开(公告)日：2001-08-14

申请号：US09630947

申请日：2000-08-03

申请人： Thaddeus Schroeder ,  Robin Stevenson

发明人： Thaddeus Schroeder ,  Robin Stevenson

IPC分类号： B21K300

CPC分类号： F16B2/02 ,  F16B2/065 ,  G01P1/00 ,  Y10T29/49231 ,  Y10T29/49998 ,  Y10T403/1616 ,  Y10T403/1624 ,  Y10T403/32426

摘要： A horizontal-mount bracket system for holding sensor position with respect to a horizontal-mount bracket, wherein facial interaction between the bracket and the sensor body provides automatic setting of the air gap which setting is preserved such that if the sensor is ever reinstalled, the air gap is precisely reset to its original value. A multi-component bracket has first and second bracket components which lay juxtaposed, one atop the other. The first bracket component has a first sensor opening and the second bracket component has a second sensor opening wherein initially the first and second sensor openings are mutually communicating and aligned just sufficiently so that the sensor body is free to vertically move therein. The sensor body is placed into a sensor port of an engine block so that the tip of the sensor body rests upon a surface of a reluctor. With the multi-component bracket resting upon a horizontal surface of the engine block, the first bracket component is laterally displaced relative to the second bracket component, causing the first and second sensor openings to be horizontally displaced relative to each other and inscribe the sensor body at an inclined angle which causes the tip to be separated from the reluctor by a predetermined air gap. Alternatively, the first and second bracket components may be inclinably slid relative to each other to thereby cause the sensor tip to be moved away from the reluctor.

摘要翻译： 一种水平安装支架系统，用于相对于水平安装支架保持传感器位置，其中支架和传感器主体之间的面部相互作用提供气隙的自动设置，该设置被保留，使得如果传感器被重新安装， 气隙精确地重新设定为其原始值。 多组件支架具有并置的第一和第二支架部件，一个在另一个之上。 第一支架部件具有第一传感器开口，而第二支架部件具有第二传感器开口，其中最初第一传感器开口和第二传感器开口相互连通并刚好对准，使得传感器主体可自由地在其中垂直移动。 传感器主体被放置在发动机缸体的传感器端口中，使得传感器主体的末端靠在排气管的表面上。 当多组分支架搁置在发动机缸体的水平表面上时，第一支架部件相对于第二支架部件横向移位，使得第一和第二传感器开口相对于彼此水平位移，并将传感器主体 以倾斜的角度，其使得尖端与反射器分离预定的气隙。 或者，第一和第二支架部件可以相对于彼此倾斜地滑动，从而使得传感器尖端远离排列器移动。

公开(公告)号：US6139211A

公开(公告)日：2000-10-31

申请号：US372952

申请日：1999-08-12

申请人： Thaddeus Schroeder ,  Robin Stevenson

发明人： Thaddeus Schroeder ,  Robin Stevenson

IPC分类号： F16B2/02 ,  F16B2/06 ,  G01P1/00 ,  F16M1/00

CPC分类号： F16B2/02 ,  F16B2/065 ,  G01P1/00 ,  Y10T29/49231 ,  Y10T29/49998 ,  Y10T403/1616 ,  Y10T403/1624 ,  Y10T403/32426

摘要： A horizontal-mount bracket system for holding sensor position with respect to a horizontal-mount bracket, wherein facial interaction between the bracket and the sensor body provides automatic setting of the air gap which setting is preserved such that if the sensor is ever reinstalled, the air gap is precisely reset to its original value. A multi-component bracket has first and second bracket components which lay juxtaposed, one atop the other. The first bracket component has a first sensor opening and the second bracket component has a second sensor opening wherein initially the first and second sensor openings are mutually communicating and aligned just sufficiently so that the sensor body is free to vertically move therein. The sensor body is placed into a sensor port of an engine block so that the tip of the sensor body rests upon a surface of a reluctor. With the multi-component bracket resting upon a horizontal surface of the engine block, the first bracket component is laterally displaced relative to the second bracket component, causing the first and second sensor openings to be horizontally displaced relative to each other and inscribe the sensor body at an inclined angle which causes the tip to be separated from the reluctor by a predetermined air gap. Alternatively, the first and second bracket components may be inclinably slid relative to each other to thereby cause the sensor tip to be moved away from the reluctor.

摘要翻译： 一种水平安装支架系统，用于相对于水平安装支架保持传感器位置，其中支架和传感器主体之间的面部相互作用提供气隙的自动设置，该设置被保留，使得如果传感器被重新安装， 气隙精确地重新设定为其原始值。 多组件支架具有并置的第一和第二支架部件，一个在另一个之上。 第一支架部件具有第一传感器开口，而第二支架部件具有第二传感器开口，其中最初第一传感器开口和第二传感器开口相互连通并刚好对准，使得传感器主体可自由地在其中垂直移动。 传感器主体被放置在发动机缸体的传感器端口中，使得传感器主体的末端靠在排气管的表面上。 当多组分支架搁置在发动机缸体的水平表面上时，第一支架部件相对于第二支架部件横向移位，使得第一和第二传感器开口相对于彼此水平位移，并将传感器主体 以倾斜的角度，其使得尖端与反射器分离预定的气隙。 或者，第一和第二支架部件可以相对于彼此倾斜地滑动，从而使得传感器尖端远离排列器移动。

公开(公告)号：US6070865A

公开(公告)日：2000-06-06

申请号：US64910

申请日：1998-04-23

申请人： Thaddeus Schroeder ,  Robin Stevenson

发明人： Thaddeus Schroeder ,  Robin Stevenson

IPC分类号： B23Q1/00

CPC分类号： G01P1/02 ,  Y10S269/90

摘要： A bracket and sensor body of a magnetic sensor, wherein relative rotation therebetween provides precise setting of an optimal air gap, and wherein operation is very quick, easy and reliable and wherein the air gap setting is precisely repeated each time a magnetic sensor is replaced or re-installed. In a first preferred embodiment, the bracket is provided with a sensor aperture having a predetermined shape, and at least one cutting tab is provided at the sensor aperture which has a predetermined pitch angle relative to the plane of the bracket. The sensor body is composed of a relatively softer material, such as a plastic, which is cuttable by the harder material of the one or more cutting tabs, wherein the shape of the sensor body is generally complementary to the predetermined shape of the aperture. Rotation of the sensor body relative to the bracket causes the one or more cutting tabs to cut into the sensor body. Depending upon the pitch of the at least one cutting tab relative to the plane of the bracket, the sensor body moves relative to the bracket in a direction normal to the plane of the bracket. Various structures are utilizable to prevent over rotation, resist back rotation and assure proper initial orientation of the sensor body relative to the sensor aperture.

摘要翻译： 磁传感器的支架和传感器主体，其间的相对旋转提供了精确设定最佳气隙，并且其中操作非常快速，容易和可靠，并且其中每次更换磁传感器时精确地重复气隙设定， 重新安装。 在第一优选实施例中，支架设置有具有预定形状的传感器孔，并且在传感器孔处设置至少一个切割突片，该切割突片相对于支架的平面具有预定的俯仰角。 传感器主体由比较软的材料（例如塑料）组成，其可被一个或多个切割片的较硬的材料切割，其中传感器主体的形状通常与孔的预定形状互补。 传感器主体相对于支架的旋转导致一个或多个切割突片切入传感器主体。 根据至少一个切割片相对于托架的平面的间距，传感器主体在垂直于支架平面的方向上相对于支架移动。 各种结构可用于防止过度旋转，阻止反向旋转并且确保传感器主体相对于传感器孔的适当的初始取向。

公开(公告)号：US5951191A

公开(公告)日：1999-09-14

申请号：US986703

申请日：1997-12-08

申请人： Thaddeus Schroeder ,  Robin Stevenson

发明人： Thaddeus Schroeder ,  Robin Stevenson

IPC分类号： G01P1/00 ,  B25G3/00

CPC分类号： G01P1/00 ,  Y10T403/1616 ,  Y10T403/32532

摘要： A bracket and washer combination providing secure holding and positioning of a magnetic sensor, wherein an optimal air gap is automatically set as the washer is brought into a slot of the bracket due to facial interaction therebetween. In one embodiment, the sidewalls of the slot have teeth of predetermined pitch, while the washer has smooth sidewalls. In a second embodiment, the sidewalls of the washer have teeth of a predetermined pitch angle, while the sidewalls of the slot are smooth. The member having toothed sidewalls is formed of a material harder than the member having smooth sidewalls. The washer and slot are dimensioned so that the sidewalls of the washer tightly abut the sidewalls of the slot, wherein the teeth of the toothed sidewalls inscribe corresponding grooves into the smooth sidewalls as the washer is pressed into the slot along a transverse axis. Consequently, as the corresponding grooves are inscribed, the washer sidewalls are caused to move in relation to the slot sidewalls in a direction parallel to the pitch of the teeth, resulting in a relative movement between the washer and the bracket along a longitudinal axis. However, since the washer is affixed by a bolt so that it is constrained from moving along the longitudinal axis, the relative movement is provided by the bracket moving along the longitudinal axis in relation to the washer.

摘要翻译： 一种支架和垫圈组合，提供了一种磁性传感器的牢固的保持和定位，其中当由于它们之间的面部相互作用而将垫圈带入支架的槽中时，自动设定最佳气隙。 在一个实施例中，槽的侧壁具有预定间距的齿，而垫圈具有平滑的侧壁。 在第二实施例中，垫圈的侧壁具有预定间距角的齿，而槽的侧壁是平滑的。 具有齿形侧壁的构件由比具有平滑侧壁的构件更硬的材料形成。 垫圈和狭槽的尺寸设计成使得垫圈的侧壁紧密地邻接槽的侧壁，其中当垫圈沿着横向轴线压入槽中时，齿形侧壁的齿将相应的凹槽划分成平滑的侧壁。 因此，当相应的凹槽被内接时，使得垫圈侧壁相对于狭槽侧壁在平行于齿的间距的方向上移动，从而沿着纵向轴线在垫圈和托架之间相对移动。 然而，由于垫圈通过螺栓固定，使得其被限制为沿着纵向轴线移动，相对运动由托架相对于垫圈沿着纵向轴线移动。