Mass air flow sensor
    3.
    发明授权
    Mass air flow sensor 失效
    大气流量传感器

    公开(公告)号:US5231878A

    公开(公告)日:1993-08-03

    申请号:US812397

    申请日:1991-12-23

    IPC分类号: G01F1/684

    CPC分类号: G01F1/6845

    摘要: A micromachined mass air flow sensor comprises a silicon substrate with an air flow opening formed therethrough. One or more silicon members carrying a thin film resistor extend over the air flow opening. The silicon members are thermally isolated from the silicon substrate frame about the air flow opening by thermal isolation zones of porous silicon oxide.

    摘要翻译: 微加工质量空气流量传感器包括具有通过其形成的气流开口的硅衬底。 携带薄膜电阻器的一个或多个硅构件在气流开口上延伸。 硅构件通过多孔氧化硅的热隔离区与硅衬底框架围绕气流开口热隔离。

    Accelerometer with a combined self-test and ground electrode
    5.
    发明授权
    Accelerometer with a combined self-test and ground electrode 失效
    具有组合自检和接地电极的加速度计

    公开(公告)号:US5587518A

    公开(公告)日:1996-12-24

    申请号:US363767

    申请日:1994-12-23

    IPC分类号: G01P15/125 G01P21/00

    摘要: A micro-machined accelerometer includes a moveable metal plate, mounted upon a semiconductor substrate. The moveable metal plate includes an aperture which contains a pedestal and at least one torsion bar for connecting the pedestal to the moveable metal plate. Measurement electrodes formed on the semiconductor substrate combine with the metal plate to form measurement capacitors. A combined self-test/common electrode provides a dual function of a common electrode during operation of the accelerometer and a testing electrode during a self-test procedure.

    摘要翻译: 微加工的加速度计包括安装在半导体衬底上的可移动金属板。 可移动金属板包括一个孔,该孔包含基座和至少一个用于将基座连接到可移动金属板的扭杆。 形成在半导体衬底上的测量电极与金属板组合以形成测量电容器。 组合的自检/公共电极在自检过程期间在加速度计和测试电极的操作期间提供公共电极的双重功能。

    Torsion beam accelerometer
    6.
    发明授权
    Torsion beam accelerometer 失效
    扭力加速度计

    公开(公告)号:US5220835A

    公开(公告)日:1993-06-22

    申请号:US758133

    申请日:1991-09-12

    申请人: Craig H. Stephan

    发明人: Craig H. Stephan

    IPC分类号: G01P1/00 G01P15/125

    摘要: A semiconductor accelerometer having a sensor element supported by a pedestal coupled to a substrate. Coupling between the pedestal and the sensor element includes opposing torsion beams along the axis of flexure coupled through a spring to the pedestal. The spring includes a pair of beams extending in a direction perpendicular to the torsion beams so that thermal expansion applies a tensile force to the torsion beams.

    摘要翻译: 一种半导体加速度计,其具有由耦合到基板的基座支撑的传感器元件。 基座和传感器元件之间的耦合包括沿弯曲轴线的相对的扭转梁,其通过弹簧联接到基座。 弹簧包括沿着垂直于扭转梁的方向延伸的一对梁,使得热膨胀对扭转梁施加张力。

    Active night vision system for vehicles employing anti-blinding scheme
    7.
    发明授权
    Active night vision system for vehicles employing anti-blinding scheme 失效
    采用防盲策略的车辆主动夜视系统

    公开(公告)号:US06966681B2

    公开(公告)日:2005-11-22

    申请号:US10605815

    申请日:2003-10-29

    摘要: A night vision system for a vehicle includes a pulsed light source for illuminating a region proximate the vehicle and a secondary trigger light source operating at a predetermined pulse timing and second wavelength. A light sensor detects light at the second wavelength. The trigger light pulses are used to indicate the pulse timing of each respective vehicle's primary NIR light source. Upon detecting another vehicle's trigger light source, the controller adjusts the pulse phase of the first light source to be exactly out-of-phase with that of the oncoming vehicle since the pulsed timing of the oncoming vehicle's NIR light source is known upon detection of the opposing vehicle's trigger light source. Each vehicle can then adjust its primary light source to be out-of-phase with the other vehicle and, hence, non-interfering.

    摘要翻译: 用于车辆的夜视系统包括用于照亮车辆附近的区域的脉冲光源和以预定脉冲定时和第二波长操作的次级触发光源。 光传感器检测第二波长的光。 触发光脉冲用于指示每个相应车辆的主NIR光源的脉冲定时。 在检测到另一车辆的触发光源时,控制器将第一光源的脉冲相位调整为与迎面而来的车辆正好不相位,因为迎面而来的车辆的NIR光源的脉冲定时是已知的, 对面车辆的触发光源。 然后,每个车辆可以将其主要光源调整为与其他车辆异相,并且因此是不干扰的。

    Composite mass air flow sensor
    8.
    发明授权
    Composite mass air flow sensor 失效
    复合质量空气流量传感器

    公开(公告)号:US5313832A

    公开(公告)日:1994-05-24

    申请号:US812396

    申请日:1991-12-23

    IPC分类号: G01F1/684 G01F1/68

    CPC分类号: G01F1/6845

    摘要: A mass air flow sensor (MAFS) is disclosed wherein silicon members carrying a resistive film are bonded to a glass substrate and extend out over an air flow opening through the glass substrate. The silicon members may be either bridges across the air flow opening or cantilevered beams having one end bonded to the substrate and a second free end. Silicon frames around the air flow opening can also be provided, to which an environmental seal can be formed. A novel method of making such sensors includes providing the glass substrate with the air flow opening therethrough and aligning thereover a silicon wafer selectively passivated to define the silicon member(s) and any frame element. The glass and silicon wafers are bonded and subsequently anisotropically etched, after which the resultant bonded and etched assembly can be employed in accordance with known mounting techniques.

    摘要翻译: 公开了一种质量空气流量传感器(MAFS),其中携带电阻膜的硅部件结合到玻璃基板并且延伸穿过玻璃基板的空气流动开口。 硅构件可以是穿过空气流动开口的桥或悬臂梁,其一端结合到基板和第二自由端。 也可以设置围绕空气流动开口的硅框架,可以形成环境密封。 制造这种传感器的新颖方法包括为玻璃基板提供穿过其中的气流开口,并且在其上对准选择性钝化的硅晶片以限定硅构件和任何框架元件。 玻璃和硅晶片被接合并随后各向异性蚀刻,之后可以根据已知的安装技术使用所得到的粘合和蚀刻组件。

    Power turbine flywheel assembly for a dual shaft turbine engine
    10.
    发明授权
    Power turbine flywheel assembly for a dual shaft turbine engine 失效
    用于双轴涡轮发动机的动力涡轮飞轮组件

    公开(公告)号:US5584174A

    公开(公告)日:1996-12-17

    申请号:US551262

    申请日:1995-10-31

    摘要: A power turbine/flywheel assembly for use in a dual shaft turbine engine having a compressor and a gasifier coupled to a first shaft. The assembly includes a second shaft that is uncoupled from the first shaft and is allowed to rotate independently of the first shaft. First and second power turbine blades are attached concentrically about and are directly coupled to the second shaft. A flywheel is directly attached concentrically about the second shaft. The flywheel is positioned between the first and second turbine blades. The first and second power turbine blades and the flywheel rotate as a unit about the second shaft.

    摘要翻译: 一种用于双轴涡轮发动机的动力涡轮机/飞轮组件,其具有联接到第一轴的压缩机和气化器。 组件包括与第一轴分离并允许独立于第一轴旋转的第二轴。 第一和第二动力涡轮叶片同心地附接并且直接联接到第二轴。 飞轮直接连接在第二轴上。 飞轮位于第一和第二涡轮叶片之间。 第一和第二动力涡轮机叶片和飞轮作为围绕第二轴的单元旋转。