Viscosity Sensor
    11.
    发明公开
    Viscosity Sensor 审中-公开
    粘度传感器

    公开(公告)号:EP2006661A3

    公开(公告)日:2009-10-07

    申请号:EP08157518.5

    申请日:2008-06-03

    CPC classification number: G01N11/16 F01M2011/148 F16N2250/36

    Abstract: A viscosity sensor for, e.g., outputting a signal representing the viscosity of engine oil has one or more piezoelectric diaphragms disposed in a fluid chamber (28) of a housing (20). An elongated amplification channel (30) is formed in the housing (20) and extends away from the chamber (28). The diaphragm can be excited to induce fluid movement that in turn induces the diaphragm to output a sensor signal representative of the viscosity of the fluid.

    Capacitive liquid level sensor
    12.
    发明公开
    Capacitive liquid level sensor 审中-公开
    KapazitiverFlüssigkeitsstandsensor

    公开(公告)号:EP1845347A2

    公开(公告)日:2007-10-17

    申请号:EP07075243.1

    申请日:2007-04-02

    Inventor: Lin, Yingjie

    CPC classification number: G01F23/268 G01F23/266

    Abstract: A sensing assembly senses a level of a fluid in a reservoir. The sensing assembly includes a first input port for receiving a first input voltage signal. The sensing assembly also includes a second input port for receiving a second input voltage signal. An excitation circuit is electrically connected to the first and second input ports for receiving the first and second input voltage signals and for generating a first excitation signal and a second excitation signal. A receiving circuit is disposed adjacent the excitation circuit and defines a variable capacitance with the excitation circuit. The receiving circuit produces an output voltage variable with the level of the fluid in the reservoir due to capacitance changes between the excitation circuit and receiving circuit. The receiving circuit includes first receiving electrode configured to effect linear capacitance change with fluid level and a second receiving electrode configured to effect second order linear capacitance change with fluid level. The receiving circuit produces an output voltage signal variable with the level of liquid in the reservoir due to capacitance changes between the excitation circuit and the receiving circuit due to dielectric changes created by the liquid.

    Abstract translation: 感测组件感测储存器中的流体的水平。 感测组件包括用于接收第一输入电压信号的第一输入端口。 感测组件还包括用于接收第二输入电压信号的第二输入端口。 激励电路电连接到第一和第二输入端口,用于接收第一和第二输入电压信号并产生第一激励信号和第二激励信号。 接收电路设置在激励电路附近并且与激励电路定义可变电容。 由于励磁电路和接收电路之间的电容变化,接收电路产生具有存储器中的液体水平的输出电压变化。 接收电路包括被配置为利用流体液位实现线性电容变化的第一接收电极和被配置为利用液位实现二阶线性电容变化的第二接收电极。 接收电路由于由液体产生的电介质变化而由于励磁电路和接收电路之间的电容变化而产生具有液体液位的输出电压信号。

    Capacitive angular position sensor
    13.
    发明公开
    Capacitive angular position sensor 审中-公开
    电容式旋转编码

    公开(公告)号:EP1396703A3

    公开(公告)日:2006-06-14

    申请号:EP03077392.3

    申请日:2003-07-30

    CPC classification number: G01D5/2405

    Abstract: A sensor ( 46 ) for sensing the angular position of a rotatable body ( 10 ) including a stationary transmitter plate ( 12 ) with at least one transmitter electrode ( E, F ), a stationary receiver plate ( 14 ) with at least a first and a second receiver electrode ( A, B, C, D ), and a rotor ( 16 ) formed of a dielectric material and positioned between the facing electrodes ( A , B, C, D, E, F ) of the plates ( 12, 14 ). The rotor ( 16 ) is smaller than the plates ( 12, 14 ) and rotates with the rotatable body ( 10 ) to change the capacitance between the transmitter electrode(s) ( E, F ) and opposed receiver electrodes ( A, B, C, D ). The induced voltages on the receiver electrodes ( A, B, C, D ) indicate the angular position of the rotatable body ( 10 ). Preferably, the sensor ( 46 ) uses a square waveform signal and two transmitter electrodes ( E, F ) receive signals 180 degrees out of phase. Then, four receiver electrodes ( A, B, C, D ) forming two receiver pairs ( AC, BD ) are connected so that the current flowing between each pair is measured and converted to a voltage. A lookup table compares the values of the voltage pairs to known values ( 46, 48 ) from calibration, giving the angular position.

    Viscosity measurement apparatus
    14.
    发明公开
    Viscosity measurement apparatus 审中-公开
    Vorrichtungfürdie Messung derViskosität

    公开(公告)号:EP1521074A1

    公开(公告)日:2005-04-06

    申请号:EP04077451.5

    申请日:2004-09-02

    Inventor: Lin, Yingjie

    CPC classification number: G01N11/02 G01N2011/002 G01N2011/0093

    Abstract: A viscosity measurement apparatus (10), or viscometer, including a fluid flow channel (12), a heating element (14) disposed at least around an exterior portion of the fluid flow channel (12) near an inlet end (22), and a temperature sensor (16) disposed within the fluid flow channel (12) downstream from the heating element (14). The viscometer (10) may also include a thermally insulating jacket (18) disposed around the heating element (14) and the fluid flow channel (12). A method of measuring viscosity with the viscometer (10) includes immersing a fluid flow channel in the fluid, heating a portion of the fluid in the fluid flow channel (12) near the inlet end (22) of the fluid flow channel (12), and measuring a temperature of the fluid in the fluid flow channel (12) at a position downstream from the inlet end (22) of the fluid flow channel (12). 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.

    Abstract translation: 粘度测量装置(10)或粘度计包括流体流动通道(12),至少围绕入口端(22)的流体流动通道(12)的外部部分周围设置的加热元件(14),以及 设置在加热元件(14)下游的流体流动通道(12)内的温度传感器(16)。 粘度计(10)还可以包括围绕加热元件(14)和流体流动通道(12)设置的绝热护套(18)。 使用粘度计(10)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(12)入口端(22)附近的流体流动通道(12)中的一部分流体, ,并且在流体流动通道(12)的入口端(22)下游的位置处测量流体流动通道(12)中的流体的温度。 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。

    Fuel quality sensor associated with a housing in fuel delivery system
    15.
    发明公开
    Fuel quality sensor associated with a housing in fuel delivery system 审中-公开
    KraftstoffqualitätdettortormitzugehörigemGehäusein einem Kraftstoffversorgungssystem

    公开(公告)号:EP1443207A2

    公开(公告)日:2004-08-04

    申请号:EP04075233.9

    申请日:2004-01-23

    Abstract: An apparatus 10 monitors at least one fuel quality characteristic of fuel passing through a fuel delivery system 12 of a motor vehicle. The apparatus 10 includes a fuel rail assembly 18 connectable to the fuel delivery system 12 of the motor vehicle. A fuel rail assembly 18 has at least one housing 14 associated with either a pressure regulator or an accumulator. A sensor is associated with the fuel rail assembly 18 for measuring at least one characteristic of fuel quality of fuel passing through the fuel rail assembly 18 . At least one characteristic includes temperature and/or impedance. The sensor 16 can include a pair of plates 20, 22 spaced from one another by a gap of between approximately 0.5 mm to approximately 1.0 mm, inclusive, for measuring impedance across the gap.

    Abstract translation: 设备10监测通过机动车辆的燃料输送系统12的燃料的至少一种燃料质量特性。 设备10包括可连接到机动车辆的燃料输送系统12的燃料轨道组件18。 燃料导轨组件18具有与压力调节器或蓄能器相关联的至少一个壳体14。 传感器与燃料轨道组件18相关联,用于测量通过燃料轨道组件18的燃料的燃料质量的至少一个特性。 至少一个特征包括温度和/或阻抗。 传感器16可以包括一对彼此间隔开大约0.5mm至大约1.0mm的间隙的板20,22,用于测量间隙上的阻抗。

    Tire pressure sensor with power generator
    16.
    发明公开
    Tire pressure sensor with power generator 审中-公开
    Reifenluftdrucksensor mit Stromerzeugung

    公开(公告)号:EP1300263A1

    公开(公告)日:2003-04-09

    申请号:EP02078717.2

    申请日:2002-09-10

    Inventor: Lin, Yingjie

    CPC classification number: B60C23/041

    Abstract: A tire pressure sensor with power generator (22) includes a spool (26) having a coil (30) wound therearound. Within the spool (26) is a pole piece (28). The tire pressure sensor (22) is installed in a wheel (12) that rotates with respect to a brake clamp (18). The brake clamp (18) includes a magnetic strip (80) that the sensor (22) moves past as the wheel (12) rotates. As the tire pressure sensor (22) moves past the brake clamp (18), the magnetic strip (80) causes the coil (30) to output an AC voltage signal. A rectifier circuit (42) connected to the coil (30) converts the AC voltage to DC voltage. The DC voltage is stored in a storage capacitor (44) to be used as needed by an air pressure sensing element (52) connected thereto.

    Abstract translation: 具有发电机(22)的轮胎压力传感器包括具有缠绕在其周围的线圈(30)的线轴(26)。 在线轴(26)内是极片(28)。 轮胎压力传感器(22)安装在相对于制动钳(18)旋转的轮(12)中。 制动夹具(18)包括当所述轮(12)旋转时传感器(22)移动过去的磁条(80)。 当轮胎压力传感器(22)移动经过制动夹具(18)时,磁条(80)使线圈(30)输出交流电压信号。 连接到线圈(30)的整流器电路(42)将AC电压转换成DC电压。 直流电压存储在存储电容器(44)中,以根据需要连接到其上的气压感测元件(52)来使用。

    Short circuit protection for vehicle driver circuit
    18.
    发明公开
    Short circuit protection for vehicle driver circuit 审中-公开
    在机动车辆的驱动电路短路保护

    公开(公告)号:EP1793496A3

    公开(公告)日:2009-07-08

    申请号:EP06077098.9

    申请日:2006-11-24

    CPC classification number: H03K17/0822 H03K17/284 H03K17/6877

    Abstract: A control circuit for a vehicle for, e.g., chassis leveling or other purposes includes a controller (12) selectively sending drive signals to a load (14) through a switch FET (M1), and a BJT having a collector connected between the switch FET (M1), an emitter connected to ground, and a base connected to a current view resistor for short circuit protection. An over power protection FET (M2) is connected to the controller (12) and to the base of the short circuit protection transistor (Q1), with the gate of the over power protection FET (M2) being connected to the output of the switch FET (M1). 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 (M1) exceeds the gate threshold voltage of the overpower protection FET, the overpower protection FET is turned on, resulting in turning off the switch FET (M1) and, hence, avoidance of high power draw through the switch FET (M1).

    Viscosity Sensor
    20.
    发明公开
    Viscosity Sensor 审中-公开
    Viskositätssensor

    公开(公告)号:EP2006661A2

    公开(公告)日:2008-12-24

    申请号:EP08157518.5

    申请日:2008-06-03

    CPC classification number: G01N11/16 F01M2011/148 F16N2250/36

    Abstract: A viscosity sensor for, e.g., outputting a signal representing the viscosity of engine oil has one or more piezoelectric diaphragms disposed in a fluid chamber (28) of a housing (20). An elongated amplification channel (30) is formed in the housing (20) and extends away from the chamber (28). The diaphragm can be excited to induce fluid movement that in turn induces the diaphragm to output a sensor signal representative of the viscosity of the fluid.

    Abstract translation: 用于例如输出表示发动机油的粘度的信号的粘度传感器具有设置在壳体(20)的流体室(28)中的一个或多个压电隔膜。 细长的放大通道(30)形成在壳体(20)中并且远离腔室(28)延伸。 振动膜可以被激发以引起流体运动,这又导致隔膜输出代表流体粘度的传感器信号。

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