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    • 2. 发明授权
    • Steering column differential angle position sensor
    • 转向柱差角位置传感器
    • US06443020B1
    • 2002-09-03
    • US09663473
    • 2000-09-15
    • Yingjie LinWarren Baxter NicholsonSteven Douglas Thomson
    • Yingjie LinWarren Baxter NicholsonSteven Douglas Thomson
    • G01L302
    • B62D6/10
    • A steering column differential angle position sensor includes an upper target wheel and a lower target wheel. Each target wheel forms a plurality of similarly shaped slots that are equally spaced radially around the target wheels. Two receiver coils and a excitation coil are coaxially aligned with the target wheels. A hollow housing surrounds the target wheels and the coils. The excitation coil generates an alternating current magnetic field around itself, and this alternating current magnetic field generates eddy current in the target wheels. The receiver coils receive an alternating current signal that is a combination of the alternating current magnetic field generated by the excitation coil and the eddy current. The receiver coils sense changes in the alternating current signal due to differential slot alignment of the target wheels, and hence, the torque on a steering column that is mechanically coupled to the sensor.
    • 转向柱差角位置传感器包括上目标轮和下目标轮。 每个目标轮形成多个类似形状的槽,其围绕目标轮径向等距分布。 两个接收器线圈和激励线圈与目标轮同轴对准。 围绕目标轮和线圈的中空壳体。 励磁线圈在其周围产生交流磁场,该交流磁场在目标轮中产生涡电流。 接收器线圈接收由励磁线圈产生的交流磁场与涡流的组合的交流信号。 接收器线圈由于目标轮的差动槽对准以及因此机械耦合到传感器的转向柱上的转矩而感测到交流信号中的变化。
    • 3. 发明授权
    • Linear velocity sensor and method for reducing non-linearity of the sensor output signal
    • 线性速度传感器和减少传感器输出信号非线性的方法
    • US06876194B2
    • 2005-04-05
    • US10373432
    • 2003-02-26
    • Yingjie LinSteven Douglas ThomsonSamuel Roland Palfenier
    • Yingjie LinSteven Douglas ThomsonSamuel Roland Palfenier
    • G01P3/52G10P3/46
    • G01P3/52
    • Linear velocity sensor and method for reducing non-linearity in the output signal of the sensor are provided. The sensor comprises a ferromagnetic housing including an opening. The sensor further comprises a spool disposed in the housing. The spool includes a bore for receiving a slidable ferromagnetic rod. The ferromagnetic rod may be extendable through the opening in the housing. A magnet is mounted at the one end of the rod distal from the opening when the rod is substantially inserted in the bore. A coil is wound on the spool. The number of turns of the coil is arranged to taperingly increase as the coil progresses from an end of the spool proximate the opening in the housing to the opposite end of the spool. The tapering arrangement for the number of turns of the coil is selected to reduce non-linearity of an output signal of the coil indicative of linear velocity.
    • 提供了线速度传感器和减小传感器输出信号非线性的方法。 该传感器包括一个包含开口的铁磁壳体。 传感器还包括设置在壳体中的线轴。 线轴包括用于容纳滑动铁磁棒的孔。 铁磁棒可以通过壳体中的开口延伸。 当杆基本上插入孔中时,磁体安装在远离开口的杆的一端。 线圈缠绕在线轴上。 线圈的匝数被布置为随着线圈从靠近壳体中的开口的线轴的端部前进到线轴的相对端而逐渐增加。 选择用于线圈匝数的渐缩布置以减少线圈的输出信号的线性,其指示线速度。
    • 6. 发明授权
    • Oil level/condition sensor
    • 油位/状态传感器
    • US06799458B2
    • 2004-10-05
    • US09849201
    • 2001-05-04
    • Keith N. IsmailOscar Alfonso LeceaSteven Douglas Thomson
    • Keith N. IsmailOscar Alfonso LeceaSteven Douglas Thomson
    • G01F2300
    • G01F23/265G01F23/268G01N33/2888
    • An oil level/condition sensor includes a first level sensing tube, a common tube, and a second level sensing tube. The tubes are concentric to each other around a central axis. Moreover, the tubes are separated by plastic spacers which insulate the level sensing tubes from the common tube and maintain the concentricity of the tubes. Installed in the end of the first level sensing tube is a coupling/plug and disposed around the coupling/plug is a first condition sensing tube. The coupling/plug insulates the first level sensing tube from the first condition sensing tube and prevents fluid communication therebetween. A second condition sensing tube is attached to the second level sensing tube around the common tube and the first condition sensing tube. A ring-shaped insulator electrically isolates the second condition sensing tube from the second level sensing tube. The multiple tube configuration provides increased sensing surface area without increasing the length of the sensor or dramatically increasing the overall diameter of the sensor package. As such, the increased sensing surface area increases the signal strength and the accuracy of the sensor. Thus, the sensor is used in relatively shallow oil pans where the length of the sensor is constrained by the depth of the oil pan.
    • 油位/状态传感器包括第一级感测管,公共管和第二级感测管。 这些管围绕中心轴线彼此同心。 此外,管由塑料间隔隔开,塑料间隔件将液位传感管与普通管隔开并保持管的同心度。 安装在第一级感测管的末端是耦合/插头并且设置在耦合/插头周围的是第一状态感测管。 联接/插塞使第一级感测管与第一状态感测管绝缘,并防止其间的流体连通。 第二条件感测管附接到围绕公共管和第一条件感测管的第二级感测管。 环形绝缘体将第二状态感测管与第二电平感测管电隔离。 多管构造提供增加的感测表面积,而不增加传感器的长度或显着增加传感器封装的总直径。 因此,增加的感测表面积增加了信号强度和传感器的精度。 因此,传感器用于相对较浅的油底壳中,传感器的长度受到油盘深度的限制。