Liquid-level gauging
    11.
    发明授权
    Liquid-level gauging 失效
    液位计

    公开(公告)号:US5357801A

    公开(公告)日:1994-10-25

    申请号:US103636

    申请日:1993-08-11

    申请人: David Sinclair

    发明人: David Sinclair

    IPC分类号: G01F23/296 G01F23/28

    CPC分类号: G01F23/2962 Y10S367/908

    摘要: An ultrasonic liquid level gauging sensor has a transducer at the lower end of a tube that is filled with liquid to the same height as liquid outside the tube. The sensor has an axial rod extending along the tube and supporting several calibration reflectors. The rod enables the sensor to be used at high tilt angles.

    摘要翻译: 超声波液面计量传感器在管的下端具有一个换能器,该换能器充满与管外的液体相同高度的液体。 传感器具有沿管延伸的轴向杆并支撑多个校准反射器。 该杆使传感器能够以高倾斜角度使用。

    Liquid-level gauging
    12.
    发明授权
    Liquid-level gauging 失效
    液位计

    公开(公告)号:US5301549A

    公开(公告)日:1994-04-12

    申请号:US21465

    申请日:1993-02-23

    申请人: David Sinclair

    发明人: David Sinclair

    IPC分类号: G01F23/28 G01F23/296

    摘要: An ultrasonic liquid level sensor has a transducer mounted at the lower end of an aluminum tube that projects upwardly in a liquid tank so that the tube is filled with liquid to the same height as that outside the tube. Internally, the tube has a layer of an acoustically-absorbing plastics to damp the transmission of ultrasonic vibration from the wall of the tube into liquid within the tube.

    摘要翻译: 超声波液面传感器具有安装在铝管的下端的换能器,其在液体罐中向上突出,使得管充满与管外相同高度的液体。 在内部,管具有一层吸声塑料,以阻止超声波振动从管壁渗透到管内的液体中。

    Liquid-level gauging
    14.
    发明授权
    Liquid-level gauging 失效
    液位计

    公开(公告)号:US5309763A

    公开(公告)日:1994-05-10

    申请号:US26767

    申请日:1993-03-05

    申请人: David Sinclair

    发明人: David Sinclair

    IPC分类号: G01F23/28 G01F23/296

    摘要: An ultrasonic liquid-level sensing system has a sensor with a number of reflectors mounted one above the other along the length of a tube that extends upwardly from a transducer and is filled with liquid to the same height as outside the tube. Liquid height is calculated from the difference between the arrival times of the pulses reflected from the two uppermost submerged reflectors and the difference between the arrival times of pulses reflected from the surface of the liquid and the uppermost submerged reflector.

    摘要翻译: 超声波液面感测系统具有传感器,其具有多个反射器,所述反射器沿着从换能器向上延伸的管的长度一个上升并且被填充有与外部相同高度的液体。 液体高度是根据从两个最上层的反射器反射的脉冲的到达时间与从液面和最上层的反射器反射的脉冲的到达时间之差的差计算的。

    Fluid-gauging systems
    15.
    发明授权
    Fluid-gauging systems 失效
    流体计量系统

    公开(公告)号:US4679433A

    公开(公告)日:1987-07-14

    申请号:US847461

    申请日:1986-04-03

    IPC分类号: G01F23/26

    CPC分类号: G01F23/266

    摘要: An aircraft fuel gauging system has a capacitance level probe mounted in a fuel tank that receives an alternating signal from a drive unit. The output of the level probe is connected to two diodes one of which is connected in series to earth and the other of which is connected in the opposite sense to a measuring unit. The measuring unit includes a signal conditioning unit which is switchable between operating as a d.c. current to voltage amplifier and a d.c. voltage amplifier by switching a resistor out of or into series connection with the diodes. A constant current source backs off the current from the probe when the tank is empty. Periodically, the supply of signals from the drive unit is interrupted and the conditioning unit is switched to operating as a d.c. voltage amplifier, the measuring unit measuring the voltage drop across the two diodes caused by current from the constant source. The current from the constant source may be increased when the resistor is connected in line such that the current through the diodes is substantially the same as the mean current during a.c. operation. The measuring unit may provide an indication of temperature derived from the voltage drop across the diodes.

    摘要翻译: 飞机燃料测量系统具有安装在燃料箱中的电容水平探头,其接收来自驱动单元的交流信号。 电平探头的输出连接到两个二极管,其中一个二极管串联连接到地,另一个以相反的方式连接到测量单元。 测量单元包括一个信号调节单元,其可以作为直流电而工作。 电流到电压放大器和直流 通过将电阻器切换为与二极管串联连接的电阻放大器。 当油箱为空时,恒定电流源会从探头中取出电流。 定期地,来自驱动单元的信号的供给被中断,并且调节单元被切换为直流运行。 电压放大器,测量单元测量由恒定源电流引起的两个二极管上的电压降。 当电阻器连接在一起时,来自恒定电源的电流可能会增加,使得通过二极管的电流与直流电流下的平均电流基本相同。 操作。 测量单元可以提供从二极管两端的电压降导出的温度的指示。

    Fluid-gauging methods and systems
    16.
    发明授权
    Fluid-gauging methods and systems 失效
    流体测量方法和系统

    公开(公告)号:US4262531A

    公开(公告)日:1981-04-21

    申请号:US79868

    申请日:1979-09-28

    IPC分类号: G01F23/26

    CPC分类号: G01F23/263

    摘要: A system for indicating the mass of fuel in several fuel tanks of an aircraft has a capacitive depth sensor and a permittivity cell located in each tank. Signals from the sensors and cells are supplied to a computing unit which computes the volume of fuel in each tank and its approximate density. The system has a densitometer and another permittivity cell which receive a sample of all the fuel supplied to the tanks, and supply output signals to the computing unit. The computing unit derives a correction factor by comparing an approximate value of density derived from the other permittivity cell with a more accurate measure of density derived from the densitometer. The correction factor is used to correct the approximate values of density derived from the permittivity cell in each tank. A correction factor is calculated in respect of every batch of fuel supplied to the tanks and a combined correction factor is calculated for the mixture in each tank, from the volumes and respective correction factors of the constituent fuels.

    摘要翻译: 用于指示飞机的几个燃料箱中的燃料质量的系统具有位于每个罐中的电容深度传感器和介电常数单元。 来自传感器和电池的信号被提供给计算单元,该计算单元计算每个储罐中的燃料量及其近似密度。 该系统具有一个密度计和另一个介电常数单元,其接收供应到储罐的所有燃料的样本,并将输出信号提供给计算单元。 计算单元通过将来自其它介电常数单元的密度的近似值与来自密度计的更精确的密度测量值进行比较来得出校正因子。 校正因子用于校正来自每个储罐中的介电常数单元的密度的近似值。 计算每批供应给坦克的燃料的校正系数,并根据构成燃料的体积和相应的校正因子计算每个罐中混合物的组合校正系数。

    DENTAL IMPLANT
    17.
    发明申请
    DENTAL IMPLANT 审中-公开
    牙科植入物

    公开(公告)号:US20130273498A1

    公开(公告)日:2013-10-17

    申请号:US13882847

    申请日:2011-11-01

    IPC分类号: A61C3/00 A61C13/08 A61C8/00

    摘要: A dental implant comprising an implant body which has an asymmetric root portion receivable in an asymmetric open root cavity of the patient and engagement means on the asymmetric root portion to at least in part engage a surface of the root cavity so as to prevent or inhibit unintentional extraction. The asymmetric root portion is complementarily shaped to fit the said asymmetric open root cavity, thus substantially dispensing with the need for protracted preparation of the root cavity and providing substantially immediate stability for the prosthetic tooth.

    摘要翻译: 一种牙科植入物,其包括植入体,所述植入体具有可接收在患者的非对称开口根腔中的不对称根部分,并且在所述不对称根部上的接合装置至少部分地接合所述根腔的表面,以防止或抑制无意的 萃取。 不对称根部部分是互补的,以适应所述不对称开口根腔,从而基本上分配需要延长根部根部的准备并且为假牙提供基本上立即的稳定性。

    SPHERICAL OBJECT PROVIDED WITH A MAP
    18.
    发明申请
    SPHERICAL OBJECT PROVIDED WITH A MAP 审中-公开
    具有地图的球形物体

    公开(公告)号:US20110159464A1

    公开(公告)日:2011-06-30

    申请号:US12650620

    申请日:2009-12-31

    申请人: David Sinclair

    发明人: David Sinclair

    IPC分类号: G09B27/08

    CPC分类号: G09B27/08 G09B29/005

    摘要: A spherical object is disclosed provided with a map substantial covering its entire surface wherein the map represents only a portion of the Earth such as a town, city, district, county, state or country. A label is also disclosed provided comprising a series of biconvex shapes which collectively describe such a map.

    摘要翻译: 公开了一种球面物体,其具有覆盖其整个表面的地图,其中地图仅表示地球的一部分,例如城镇,县,县,州或国家。 还公开了一种包括共同描述这种地图的一系列双凸形状的标签。