Method and apparatus for tire pressure monitoring
    2.
    发明申请
    Method and apparatus for tire pressure monitoring 有权
    轮胎压力监测方法和装置

    公开(公告)号:US20070279201A1

    公开(公告)日:2007-12-06

    申请号:US11447601

    申请日:2006-06-05

    IPC分类号: B60C23/00

    CPC分类号: B60C23/0408 G01L27/007

    摘要: A method for monitoring pressure is described herein. The method includes the steps of performing an accurate measurement of pressure and performing an approximate measurement of pressure. Then, providing a notification signal if a difference between the approximate measurement and the accurate measurement is greater than a predetermined value. An apparatus for performing the method is also disclosed.

    摘要翻译: 本文描述了用于监测压力的方法。 该方法包括执行压力的精确测量并执行压力的近似测量的步骤。 然后,如果近似测量和精确测量之间的差大于预定值,则提供通知信号。 还公开了一种用于执行该方法的装置。

    FUEL TANK MODULE CONTROL SYSTEM
    3.
    发明申请
    FUEL TANK MODULE CONTROL SYSTEM 审中-公开
    燃油箱模块控制系统

    公开(公告)号:US20070272025A1

    公开(公告)日:2007-11-29

    申请号:US11834450

    申请日:2007-08-06

    申请人: Gary Casey

    发明人: Gary Casey

    IPC分类号: G01L7/00

    摘要: A fuel tank module control system configured to measure fuel level and fuel tank vapor pressure, the system having an aspirator to use air or liquid fuel to vapor, an oscillator cyclically producing pressurized vapor, and a pressure sensor that alternately measures the pressurized vapor provided by the oscillator and the pressure of a fuel column. A check valve is provided downstream of the sensor to restrict the flow of vapor in a single direction. To determine the fuel level, the differential of the square wave output of the sensor is calculated. To determine if there are any leaks in the fuel tank, the tank vapor pressure is measured when the engine is off.

    摘要翻译: 一种燃料箱模块控制系统,被配置为测量燃料水平和燃料箱蒸汽压力,该系统具有使用空气或液体燃料至蒸气的抽吸器,循环地产生加压蒸气的振荡器和交替地测量由 振荡器和燃料柱的压力。 在传感器的下游设有止回阀,以限制单一方向的蒸汽流。 为了确定燃料油位,计算传感器的方波输出的差值。 为了确定燃油箱是否有泄漏,发动机关闭时测量油箱的蒸汽压力。

    Lead embedded pressure sensor
    4.
    发明授权
    Lead embedded pressure sensor 有权
    铅嵌入式压力传感器

    公开(公告)号:US07162926B1

    公开(公告)日:2007-01-16

    申请号:US11198017

    申请日:2005-08-04

    IPC分类号: G01L7/10

    摘要: A pressure capsule embedded in a pacemaker lead to monitor intracardiac chamber pressure is described. This pressure monitor capsule provides highly accurate pressure readings while insuring a high integrity seal against bodily fluids and tissue growth. The capsule is intended to be embedded into a pacemaker cardiac lead or a catheter with the distal (Tip) isolation diaphragm sensing pressure, coupling the pressure through an air column to a protected sensing MEMS device and providing a secure fluid seal to the lead walls. The proximal (Back) end of the capsule provides the electrical interface through the lead to the pacemaker pulse generator.

    摘要翻译: 描述了嵌入起搏器中的压力胶囊,以监测心内腔室压力。 该压力监视器胶囊提供高精度的压力读数,同时确保抵抗体液和组织生长的高完整性密封。 胶囊旨在嵌入起搏器心脏引线或具有远端(Tip)隔离膜片感测压力的导管,将压力通过空气柱耦合到受保护的感测MEMS装置,并向引导壁提供安全的流体密封。 胶囊的近端(后)端提供通过引线到起搏器脉冲发生器的电接口。

    Linearity semi-conductive pressure sensor
    5.
    发明申请

    公开(公告)号:US20060185436A1

    公开(公告)日:2006-08-24

    申请号:US11405960

    申请日:2006-04-17

    IPC分类号: G01L9/12

    CPC分类号: G01L9/0073

    摘要: A pressure sensor system involves a semi-conductive diaphragm electrode overlying a cavity in a semiconductor chip, with the center of the diaphragm secured to a mesa extending upwardly from the cavity. A second electrode is implemented by a heavily doped raised ring between the mesa and the periphery of the chip at the ring of maximum deflection of the diaphragm. The raised ring electrode is heavily doped with one polarity, with light doping near the base of the raised area, and the remainder of the cavity is heavily doped with the opposite polarity. The plot of Linearity Error versus width of the ring electrode, has a minimum, and the width of the ring electrode and related constructional features are selected to conform to the minimum point of the linearity function. The reference capacitor is arcuate in configuration and extends part way around and in immediate proximity to the sensor diaphragm.

    VERSATILE SMART NETWORKABLE SENSOR
    6.
    发明申请
    VERSATILE SMART NETWORKABLE SENSOR 审中-公开
    多功能智能网络传感器

    公开(公告)号:US20010013826A1

    公开(公告)日:2001-08-16

    申请号:US09404882

    申请日:1999-09-24

    IPC分类号: B60Q001/00

    CPC分类号: G01D11/24

    摘要: A networkable smart sensor senses an analog signal and converts this to a digital signal output. A processed signal is then communicated to a network. The sensor can be a stand-alone electronic signal processor sensor or can be networked for operation with a controller and/or other sensors. Sensors can operate in a master-slave or peer-to-peer communication mode. The sensors are for use in industrial applications including vehicle engines and processes.

    摘要翻译: 可连接的智能传感器感测模拟信号并将其转换为数字信号输出。 然后将经处理的信号传送到网络。 该传感器可以是独立的电子信号处理器传感器,或者可以联网以与控制器和/或其他传感器一起操作。 传感器可以在主 - 从或对等通信模式下工作。 传感器用于工业应用,包括车辆发动机和过程。

    Monolithic MOS-SC circuit
    7.
    发明授权
    Monolithic MOS-SC circuit 失效
    单片MOS-SC电路

    公开(公告)号:US6147541A

    公开(公告)日:2000-11-14

    申请号:US935870

    申请日:1997-09-23

    申请人: Petrus H. Seesink

    发明人: Petrus H. Seesink

    IPC分类号: H03K3/0231 G06G7/19

    CPC分类号: H03K3/0231

    摘要: With regard to a significant reduction in the tolerance range or margin to be taken into account in the design of a switched-capacitor circuit which is monolithically integrated by means of enhancement-mode insulated-gate field-effect transistors there is provided at least one opamp. This opamp contains a resistor which determines its quiescent current and is realized as a transistor operated in the permanently current-conducting state. An on-chip clock oscillator generates a clock signal. This oscillator is either an RC clock oscillator, whose frequency is determined by an oscillator resistor, which is realized as a transistor operated in the permanently current-conducting state, and an oscillator capacitor, or a current-controlled clock oscillator, whose frequency is determined by the quiescent current of the opamp. At least one capacitor is charged or discharged during operation by the opam via at least one switch in the form of a transistor clocked by the clock signal.

    摘要翻译: 关于在通过增强型绝缘栅场效应晶体管单片集成的开关电容器电路的设计中要考虑的公差范围或余量的显着减小,提供至少一个运算放大器 。 该运算放大器包含一个确定其静态电流的电阻,并被实现为在永久导通状态下工作的晶体管。 片上时钟振荡器产生时钟信号。 该振荡器是RC时钟振荡器,其频率由振荡器电阻决定,振荡器电阻被实现为在永久导通状态下工作的晶体管,以及振荡器电容器或电流控制的时钟振荡器,其频率被确定 通过opamp的静态电流。 至少一个电容器在运行期间由opam通过至少一个以时钟信号为时钟的晶体管形式的开关进行充电或放电。

    Process for wafer bonding in a vacuum
    8.
    发明授权
    Process for wafer bonding in a vacuum 失效
    在真空中晶圆接合的工艺

    公开(公告)号:US6008113A

    公开(公告)日:1999-12-28

    申请号:US81696

    申请日:1998-05-19

    摘要: A jig for a fusion bonding process includes a sealable chamber having a first station for a first wafer and a second station for a second wafer. The wafers are initially separated from each other while a vacuum is created in the chamber. In one embodiment of the invention, movably mounted spacers separate the wafers while the vacuum is formed. The spacers are then moved to allow the wafers to come into contact and form an initial bond. In another embodiment, wafers in the first and second stations are tilted away from each other so that gravity keeps the wafers separated while the vacuum is formed. After the vacuum is formed, the chamber is rotated so that gravity pushes the two wafers together. In either embodiment, a mechanical pushing system or vibrational energy can apply force to induce or improve the initial bond. The initial bond seals cavities formed between the wafers. The jig can be transparent to infrared radiation or visible light to allow inspection of the initial bond and the sealing of the cavities. If the cavities are sealed, the wafers are removed from the chamber for annealing which strengthens the bond between the wafers. The cavities between the wafers inherit from the chamber a vacuum that helps to keep the wafers together during annealing.

    摘要翻译: 用于熔接工艺的夹具包括具有用于第一晶片的第一工位和第二晶片的第二工位的可密封室。 在室内产生真空时,晶片最初彼此分离。 在本发明的一个实施例中,可移动安装的间隔件在形成真空的同时分离晶片。 然后移动间隔物以允许晶片接触并形成初始粘结。 在另一个实施例中,第一和第二站中的晶片相互倾斜,使得重力在形成真空的同时使晶片分离。 在形成真空之后,旋转腔室,使得重力将两个晶片推到一起。 在任一实施例中,机械推动系统或振动能量可以施加力以诱导或改善初始粘结。 初始粘结密封在晶片之间形成的空腔。 夹具可以对红外辐射或可见光透明,以便检查初始粘合和空腔的密封。 如果空腔被密封,则晶片从用于退火的室中移除,这加强了晶片之间的结合。 晶片之间的空腔从腔室继承有真空,有助于在退火过程中将晶片保持在一起。

    Fusion-bond electrical feed-through
    9.
    发明授权
    Fusion-bond electrical feed-through 失效
    融合电子馈电

    公开(公告)号:US5923952A

    公开(公告)日:1999-07-13

    申请号:US897124

    申请日:1997-07-18

    摘要: A semiconductor device has a flexible structure bonded to a semiconductor substructure to form a cavity. The flexible structure is bonded over a conducting feed-through without the feed-through interfering with a hermetic seal formed by bonding. One embodiment of the device includes depressions that contain edges of a diffused feed-through so that imperfections at the edge of the diffusion do not interfere with bonding. The flexible structure is bonded to elevated areas thus hiding the imperfections. In one embodiment, a first elevated region is surrounded by a second elevated region, and diffusion for the feed-through extends from an active region in the cavity across the first elevated region with edges of the diffusion being between the first and second elevated regions. The flexible structure can thus bond to the first and second elevated regions without interference from the edge of the diffused feed-through. A via through the flexible structure to the first elevated region provides electrical contact with the active region. Another embodiment has either a surface or buried well in a semiconductor structure and extending from an active region in the cavity to a point outside the perimeter of the flexible structure. The well provides a conductive feed-through structure without creating imperfections that would interfere with the bonding that seals the cavity.

    摘要翻译: 半导体器件具有结合到半导体子结构以形成空腔的柔性结构。 柔性结构粘合在导电馈通上,而不会干扰通过接合形成的气密密封。 该装置的一个实施例包括含有扩散馈通边缘的凹陷,使得扩散边缘处的缺陷不会妨碍接合。 柔性结构结合到高架区域,从而隐藏缺陷。 在一个实施例中,第一升高区域被第二升高区域包围,并且用于馈通的扩散从空腔中的有源区域穿过第一升高区域延伸,扩散边缘在第一和第二升高区域之间。 因此,柔性结构可以连接到第一和第二升高区域而不受来自扩散馈通的边缘的干扰。 通过柔性结构到第一升高区域的通孔提供与活性区域的电接触。 另一个实施例具有半导体结构中的表面或掩埋阱,并且从空腔中的有源区域延伸到柔性结构的周边外的点。 该井提供导电的馈通结构,而不产生将干扰密封空腔的接合的缺陷。

    Capacitive sensor assembly
    10.
    发明授权
    Capacitive sensor assembly 失效
    电容传感器组件

    公开(公告)号:US5900810A

    公开(公告)日:1999-05-04

    申请号:US767808

    申请日:1996-12-17

    摘要: A sensor assembly includes a tilt sensor, an oil level sensor, an oil temperature sensor and an oil deterioration sensor, as well as associated output signal conditioning electronics integrated within a common assembly. The sensor assembly is configured to receive a volume of motor oil proportional to a total volume of oil in an engine. The oil level sensor, oil temperature sensor and oil deterioration sensors include electrodes which are completely or partially immersed in the volume of motor oil depending upon the total volume of oil in the engine. The tilt sensor includes only two electrodes both of which are at least partially immersed within a controlled volume of dielectric fluid which is physically and electrically isolated from the volume of motor oil. One of the electrodes of the tilt sensor is completely immersed in the controlled volume of dielectric fluid independent of an angle of the tilt sensor relative to a vector representing forces such as gravity applied to the tilt sensor.

    摘要翻译: 传感器组件包括倾斜传感器,油位传感器,油温传感器和油劣化传感器,以及集成在公共组件内的相关联的输出信号调节电子装置。 传感器组件被配置为接收与发动机中的总油量成比例的一定体积的电机油。 油位传感器,油温传感器和油劣化传感器包括根据发动机中的总油量完全或部分地浸入机油体积中的电极。 倾斜传感器仅包括两个电极,两个电极至少部分地浸没在与体积的机油物理和电隔离的介电流体的受控体积内。 倾斜传感器的电极中的一个完全浸没在受控体积的介电流体中,独立于倾斜传感器的角度相对于表示诸如施加到倾斜传感器的重力的力的矢量。