公开(公告)号：US20070127180A1

公开(公告)日：2007-06-07

申请号：US11293930

申请日：2005-12-05

申请人： Yingjie Lin ,  Manuel Sanchez

发明人： Yingjie Lin ,  Manuel Sanchez

IPC分类号： H02H3/08

CPC分类号： H03K17/0822 ,  H03K17/284 ,  H03K17/6877

摘要： A control circuit for a vehicle for, e.g., chassis leveling or other purposes includes a controller selectively sending drive signals to a load through a switch FET, and a BJT having a collector connected between the switch FET, an emitter connected to ground, and a base connected to a current view resistor for short circuit protection. An over power protection FET is connected to the controller and to the base of the short circuit protection transistor, with the gate of the over power protection FET being connected to the output of the switch FET. A time delay capacitor is connected from the base of the BJT to ground. With this structure, if a ground fault causes the BJT to turn on, and if the drain-source voltage of the switch FET exceeds the gate threshold voltage of the overpower protection FET, the overpower protection FET is turned on, resulting in turning off the switch FET and, hence, avoidance of high power draw through the switch FET.

摘要翻译： 用于例如机箱调平或其他目的的用于车辆的控制电路包括控制器通过开关FET选择性地将驱动信号发送到负载，以及具有集电极的BJT，该集电极连接在开关FET，连接到地之间的发射极和 基极连接到用于短路保护的电流检测电阻。 过功率保护FET连接到控制器和短路保护晶体管的基极，过功率保护FET的栅极连接到开关FET的输出。 延时电容器从BJT的基极连接到地。 通过这种结构，如果接地故障导致BJT导通，并且如果开关FET的漏极 - 源极电压超过过功率保护FET的栅极阈值电压，则过功率保护FET导通，导致关断 开关FET，因此避免了通过开关FET的大功率抽头。

公开(公告)号：US08324890B2

公开(公告)日：2012-12-04

申请号：US12562170

申请日：2009-09-18

申请人： Yingjie Lin

发明人： Yingjie Lin

IPC分类号： H01L43/06 ,  G01B7/14 ,  G01R33/02

CPC分类号： F16D48/06 ,  F16D2025/081 ,  F16D2300/18 ,  F16D2300/26 ,  F16D2500/3026 ,  F16D2500/501 ,  G01D5/145

摘要： A transmission clutch position sensor includes two Hall sensors located at opposite ends of a flux concentrator outside the casing of the transmission to sense a magnetic field generated by a magnet attached to the clutch piston. To reduce sensitivity to magnet-to-sensor gap tolerances, a ratio of the voltage of one Hall sensor to the sum of the voltages from both Hall sensors is used to correlate to the piston and, hence, clutch position.

摘要翻译： 传动离合器位置传感器包括位于变速器壳体外侧的通量集中器的相对端处的两个霍尔传感器，以感测由附接到离合器活塞的磁体产生的磁场。 为了降低对磁体到传感器间隙公差的敏感性，使用一个霍尔传感器的电压与两个霍尔传感器的电压之和的比率与活塞相关联，因此与离合器位置相关联。

公开(公告)号：US20090079445A1

公开(公告)日：2009-03-26

申请号：US11860901

申请日：2007-09-25

申请人： Yingjie Lin ,  Cecilia Hernandez ,  Daniel J. Moreno

发明人： Yingjie Lin ,  Cecilia Hernandez ,  Daniel J. Moreno

IPC分类号： G01N27/07

CPC分类号： G01N27/07 ,  G01N33/2852

摘要： A fuel sensor includes a cylindrical, one-piece plastic body that has an inlet, an outlet and a fuel passage in between. The body further includes three sensing, thin-walled plate holders that extend from the cylindrical body into and across the fuel passage. Three parallel sensing plates are disposed in the holders for use in forming a pair of parallel plate devices. The thin-walled plate holders surrounding the plates provide isolation of the plates from contact with the fuel. The body also includes a cavity to house a printed circuit board (PCB), which includes signal processing circuitry. The PCB is also isolated from exposure to the fuel. The sensing plates have leads that extend into the cavity for connection to the PCB. An interface connector for connection to an engine controller is also provided. The sensor achieves isolation from exposure to fuel without the use of any coatings.

摘要翻译： 燃料传感器包括圆柱形的一件式塑料体，其中有入口，出口和燃料通道。 该主体还包括从圆柱体延伸并穿过燃料通道的三个感测的薄壁板保持器。 三个平行的感测板设置在保持器中用于形成一对平行板装置。 围绕板的薄壁板支架提供了隔离板与燃料的接触。 该主体还包括一个容纳印刷电路板（PCB）的空腔，其中包括信号处理电路。 PCB也与燃料隔离。 感测板具有延伸到腔体中以连接到PCB的引线。 还提供了用于连接到发动机控制器的接口连接器。 传感器在不使用任何涂层的情况下实现了暴露于燃料的隔离。

公开(公告)号：US20090001997A1

公开(公告)日：2009-01-01

申请号：US11771543

申请日：2007-06-29

申请人： Yingjie Lin ,  Su-Chee S. Wang ,  Ming-Cheng Wu

发明人： Yingjie Lin ,  Su-Chee S. Wang ,  Ming-Cheng Wu

IPC分类号： G01R27/26

CPC分类号： G01N27/023 ,  G01N33/2876

摘要： Systems and methods for determining a total acid number associated with biodiesel in a mixture of biodiesel and petrodiesel are provided. The method includes receiving an oscillatory signal at an inductance-capacitance-resistance circuit. The circuit has a sensing element fluidly communicating with the mixture of biodiesel and petrodiese. The method further includes generating a resonant current at a resonant frequency utilizing the circuit in response to the oscillatory signal. The method further includes determining a dielectric constant value indicating a dielectric constant associated with the biodiesel in the mixture based on the resonant frequency of the resonant current, utilizing a microprocessor. The method further includes determining a concentration value indicating a concentration of the biodiesel in the mixture based on an amplitude of the resonant current and the dielectric constant value, utilizing the microprocessor. The method, further includes determining the total acid number associated with the biodiesel in the mixture based on the amplitude of the resonant current or the resonant frequency, and the concentration value, utilizing the microprocessor.

摘要翻译： 提供了用于测定与生物柴油和石油柴油混合物中的生物柴油相关的总酸值的系统和方法。 该方法包括在电感电容电阻电路处接收振荡信号。 电路具有与生物柴油和石油石混合物流体连通的传感元件。 该方法还包括响应于振荡信号利用电路产生谐振频率的谐振电流。 该方法还包括利用微处理器，基于谐振电流的谐振频率来确定指示与混合物中的生物柴油相关联的介电常数的介电常数值。 该方法还包括利用微处理器，基于谐振电流的幅度和介电常数值来确定指示混合物中生物柴油浓度的浓度值。 该方法还包括利用微处理器，基于谐振电流或谐振频率的振幅和浓度值来确定混合物中与生物柴油有关的总酸值。

公开(公告)号：US07383737B1

公开(公告)日：2008-06-10

申请号：US11693202

申请日：2007-03-29

申请人： Yingjie Lin ,  Carlos A. Urquidi ,  Francisco Romo

发明人： Yingjie Lin ,  Carlos A. Urquidi ,  Francisco Romo

IPC分类号： G01L9/12

CPC分类号： G01L9/0072

摘要： A capacitive pressure sensor includes a electrically conductive, generally piston shaped diaphragm with a flexible base wall configured to deflect under pressure. The diaphragm is generally U-shaped in cross section. The base wall includes an upper, flat sensing surface which acts as a capacitive electrode. The diaphragm further includes a step around a radially-outermost perimeter which is elevated from the flat sensing surface. A sensing electrode body is located on top of the step and creates a capacitive sensing cavity between the sensing surface and the bottom surface of the electrode body. On the bottom surface of the electrode body is formed a center, circular electrode and a ring electrode that surrounds the center electrode. The center electrode and the sensing surface form a variable capacitor which changes with pressure and the ring electrode and the sensing surface form a reference capacitor. A circuit determines a differential capacitance between the variable capacitor and the reference capacitor and generates a pressure signal indicative of the fluid pressure applied to the diaphragm. A spring ring holds the sensing electrode body against the diaphragm when assembled. The diaphragm can be a machined metal part or a sheet metal cup. The sensing electrodes and signal generating circuit can take the form of a hybrid circuit.

摘要翻译： 电容式压力传感器包括导电的，大体上活塞形的隔膜，其具有被配置为在压力下偏转的柔性底壁。 隔膜的横截面通常为U形。 底壁包括用作电容电极的上部平坦的感测表面。 隔膜还包括围绕从平坦感测表面升高的径向最外周边的台阶。 感测电极体位于步骤的顶部，并且在感测表面和电极体的底表面之间产生电容感应腔。 在电极体的底表面上形成围绕中心电极的中心圆形电极和环形电极。 中心电极和感测表面形成可变电容器，其随压力而变化，并且环形电极和感测表面形成参考电容器。 电路确定可变电容器和参考电容器之间的差分电容，并产生指示施加到隔膜的流体压力的压力信号。 组装时，弹簧环将感测电极体固定在隔膜上。 隔膜可以是加工的金属部件或钣金杯。 感测电极和信号发生电路可以采用混合电路的形式。

公开(公告)号：US20070001255A1

公开(公告)日：2007-01-04

申请号：US11472802

申请日：2006-06-22

申请人： Yingjie Lin

发明人： Yingjie Lin

IPC分类号： H01L31/058

CPC分类号： G01L1/225

摘要： MOSFETs are provided to connect the sensor input terminals of a ratiometric output sensor to a pair of power terminals, and the gate of each MOSFET is coupled to the opposite power terminal so that both MOSFETs are rendered conducting to power the sensor when a supply voltage of a predetermined polarity is connected across the power terminals but one of the MOSFETs is rendered non-conducting when a voltage of the opposite polarity is so applied. The MOSFET that is rendered non-conducting is oriented so that any internal source-drain diode does not bypass current around the MOSFET when voltage of the opposite polarity is applied. Optionally, over-voltage protection is provided by an input voltage sensor controlling the other MOSFET through a third MOSFET.

摘要翻译： 提供MOSFET以将比例输出传感器的传感器输入端子连接到一对电源端子，并且每个MOSFET的栅极耦合到相对的电源端子，使得当两个MOSFET被导通以对传感器供电时，当电源电压 如果施加相反极性的电压，则在功率端子之间连接预定的极性，但是MOSFET中的一个被导通成不导通。 导通不导通的MOSFET取向为使得当施加相反极性的电压时，任何内部源极 - 漏极二极管不会绕过MOSFET周围的电流。 可选地，通过通过第三MOSFET控制另一MOSFET的输入电压传感器提供过电压保护。

公开(公告)号：US07078915B1

公开(公告)日：2006-07-18

申请号：US11063319

申请日：2005-02-22

申请人： Yingjie Lin

发明人： Yingjie Lin

IPC分类号： G01R27/26

CPC分类号： G01D5/2415

摘要： A semi-circular dielectric rotor is attached to a steering column for rotation with the steering column. Straddling the rotor but not contacting it are an excitation electrode member which generates an electric field and a receiver electrode member that outputs signals representative of the electric field and, hence, of the position of the steering column.

摘要翻译： 一个半圆形的电介质转子连接到转向柱上，用于与转向柱一起旋转。 绕转子但不与其接触的是产生电场的激励电极部件和输出表示转向柱的位置的信号的接收电极部件。

公开(公告)号：US07013714B2

公开(公告)日：2006-03-21

申请号：US10675000

申请日：2003-09-30

申请人： Yingjie Lin

发明人： Yingjie Lin

IPC分类号： G01N25/00

CPC分类号： G01N11/02 ,  G01N2011/002 ,  G01N2011/0093

摘要： A viscosity measurement apparatus, or viscometer, including a fluid flow channel, a heating element disposed at least around an exterior portion of the fluid flow channel near an inlet end, and a temperature sensor disposed within the fluid flow channel downstream from the heating element. The viscometer may also include a thermally insulating jacket disposed around the heating element and the fluid flow channel. A method of measuring viscosity with the viscometer includes immersing a fluid flow channel in the fluid, heating a portion of the fluid in the fluid flow channel near the inlet end of the fluid flow channel, and measuring a temperature of the fluid in the fluid flow channel at a position downstream from the inlet end of the fluid flow channel. The method further includes recording temperature changes of the fluid for a time period and comparing recorded temperature change characteristics to known fluid viscosities to determine viscosity.

摘要翻译： 一种粘度测量装置或粘度计，包括流体流动通道，至少围绕入口端的流体流动通道的外部部分设置的加热元件和设置在加热元件下游的流体流动通道内的温度传感器。 粘度计还可以包括设置在加热元件和流体流动通道周围的绝热护套。 使用粘度计测量粘度的方法包括将流体流动通道浸入流体中，加热流体流动通道中流体流动通道附近流体流动通道入口端的一部分，以及测量流体流体中流体的温度 通道在流体流动通道的入口端下游的位置处。 该方法还包括记录流体的温度变化一段时间，并将记录的温度变化特性与已知的流体粘度进行比较以确定粘度。

公开(公告)号：US20050087013A1

公开(公告)日：2005-04-28

申请号：US10998345

申请日：2004-11-23

申请人： Yingjie Lin

发明人： Yingjie Lin

IPC分类号： G01F23/26

CPC分类号： G01F23/266 ,  G01F23/263

摘要： A sensing assembly (10) senses a level (24) of a liquid (22) in a reservoir (12). The sensing assembly (10) includes a first input port (32) for receiving a first input voltage signal. The sensing assembly (10) also includes a second (32) input port (36) for receiving a second input voltage signal. An excitation circuit (40) is electrically (36) connected to the first (32) and second (34) input ports for receiving the first (34) and second (38) input voltage signals and for generating a first excitation signal and a second excitation signal. A receiving circuit (50) is disposed adjacent the excitation circuit (40) and defines a variable capacitance with the excitation circuit (40). The receiving circuit (50) produces an output voltage variable with the level (24) of the liquid (22) in the reservoir (12) due to capacitance changes between the excitation circuit (40) and the receiving circuit (50). The receiving circuit (50) includes a first receiving electrode (54) extending through a sine wave form and a second receiving electrode (56) extending through a cosine wave form. The capacitance changes are due to dielectric changes created by the presence of the liquid (22) adjacent at least a portion of the sensing assembly (10).

摘要翻译： 感测组件（10）感测储存器（12）中的液体（22）的水平面（24）。 感测组件（10）包括用于接收第一输入电压信号的第一输入端口（32）。 感测组件（10）还包括用于接收第二输入电压信号的第二（32）输入端口（36）。 激励电路（40）电连接到第一（32）和第二（34）输入端口，用于接收第一（34）和第二（38）输入电压信号，并用于产生第一激励信号和第二 激励信号。 接收电路（50）邻近激励电路（40）设置并且与激励电路（40）定义可变电容。 由于励磁电路（40）和接收电路（50）之间的电容变化，接收电路（50）产生具有液体（22）在储液器（12）中的液位（24）的输出电压。 接收电路（50）包括延伸穿过正弦波形的第一接收电极（54）和延伸穿过余弦波形的第二接收电极（56）。 电容变化是由于与感测组件（10）的至少一部分相邻的液体（22）的存在产生的电介质变化。

公开(公告)号：US06836111B2

公开(公告)日：2004-12-28

申请号：US10407073

申请日：2003-04-03

申请人： Daniel J. Moreno ,  Yingjie Lin

发明人： Daniel J. Moreno ,  Yingjie Lin

IPC分类号： G01B730

CPC分类号： G01D5/145

摘要： A sensor assembly with a universal sensor module for sensing angular position of a rotatable object is provided. The universal sensor module includes a module housing. The sensor module further includes a rotatable assembly in the module housing configured to define a bore for interchangeably receiving one of the following: the rotatable object, and an interface adaptor for receiving the rotatable object. A bearing device allows rotational movement between a stationary assembly and the rotatable assembly. The sensor assembly is configured to accommodate an array of diverse sensing applications with the universal sensor module.

摘要翻译： 提供了一种具有用于检测可旋转物体的角位置的通用传感器模块的传感器组件。 通用传感器模块包括模块壳体。 传感器模块还包括模块壳体中的可旋转组件，其被构造成限定用于可互换地接收以下内容之一的孔：可旋转物体和用于接收可旋转物体的接口适配器。 轴承装置允许固定组件和可旋转组件之间的旋转运动。 传感器组件被配置成通过通用传感器模块来容纳不同传感应用的阵列。