Gas sensor
    61.
    发明授权
    Gas sensor 失效
    气体传感器

    公开(公告)号:US5840255A

    公开(公告)日:1998-11-24

    申请号:US777021

    申请日:1996-12-30

    IPC分类号: G01N27/04 G01N27/12

    CPC分类号: G01N27/12

    摘要: In order to avoid measurement signal drift, a gas sensor has a gas sensitive layer which is provided on its upper side with a measuring electrode structure and on its lower side with an electrically conductive layer.

    摘要翻译: 为了避免测量信号漂移,气体传感器具有气体敏感层,其在其上侧设置有测量电极结构,并且在其下侧设置有导电层。

    Method For Measuring Gases And/Or Minimizing Cross-Sensitivities In Fet-Based Gas Sensors
    63.
    发明申请
    Method For Measuring Gases And/Or Minimizing Cross-Sensitivities In Fet-Based Gas Sensors 有权
    用于测量气体和/或最小化基于气体传感器的交叉敏感性的方法

    公开(公告)号:US20080016949A1

    公开(公告)日:2008-01-24

    申请号:US11587173

    申请日:2005-04-22

    IPC分类号: G01N7/00 G01N33/00

    CPC分类号: G01N27/4143 G01N33/006

    摘要: A gas sensor based on a field effect transistor (“FET”) evaluates both a change in work function of a gas-sensitive layer of the FET and a change in the capacitance of the layer. Thus, two physically independent signals are read from the gas-sensitive layer, each signal representing a sensitivity to a different gas. This reduces the effect of cross-sensitivities; that is, of one gas on the target gas. The underlying physical mechanisms, the first causing a change in the work function in a reaction with gases and the second causing a change in the capacitance of the sensitive layer, are widely different. Because of this, the two parameters demonstrate different gas sensitivities. If the reactions to both gases are known, the effect of the interfering gas on the sensor signal can be compensated for, and with this the concentration of the target gas can be determined.

    摘要翻译: 基于场效应晶体管(“FET”)的气体传感器评估FET的气敏层的功函数变化和层的电容变化。 因此,从气体敏感层读取两个物理独立的信号,每个信号表示对不同气体的敏感性。 这降低了交叉敏感性的影响; 也就是目标气体上的一种气体。 潜在的物理机制,首先引起与气体反应的功函数的变化,第二个导致敏感层的电容变化的物理机制是不同的。 因此,这两个参数表现出不同的气体敏感性。 如果对两种气体的反应是已知的,则可以补偿干扰气体对传感器信号的影响,并且可以确定目标气体的浓度。

    Hydrogen sensor
    64.
    发明授权
    Hydrogen sensor 失效
    氢传感器

    公开(公告)号:US06513364B1

    公开(公告)日:2003-02-04

    申请号:US09674190

    申请日:2000-10-27

    IPC分类号: G01N700

    CPC分类号: G01N33/005 G01N27/12

    摘要: A hydrogen sensor employs a hydrogen-sensitive semiconductor layer that is applied to a carrier substrate. The hydrogen-sensitive semiconductor layer includes a first and second semiconductor layers that consist of strontium titanate so as to compensate for temperature fluctuations in the hydrogen-sensitive semiconductor layer. The first and second semiconductor layers include a respective and different electrical conductivity.

    摘要翻译: 氢传感器采用施加到载体衬底的氢敏半导体层。 氢敏感半导体层包括由钛酸锶组成的第一和第二半导体层,以便补偿在氢敏感半导体层中的温度波动。 第一和第二半导体层包括各自不同的导电性。

    Device and method for dosing fluid
    65.
    发明授权
    Device and method for dosing fluid 有权
    用于计量流体的装置和方法

    公开(公告)号:US6119952A

    公开(公告)日:2000-09-19

    申请号:US384357

    申请日:1999-08-27

    摘要: A device and method for dosing fluid has a housing enclosing a lifting element and a primary drive hydraulically operable on the lifting element via a hydraulic chamber. The lifting element is disposed within a borehole with a leakage permitting fit. A fluid chamber in communication with the borehole contains a fluid to be dispensed in a dosed manner by controlled axial movement of the primary drive and lifting element.

    摘要翻译: 用于计量流体的装置和方法具有壳体,其包围提升元件和主驱动器,其通过液压室在提升元件上液压地操作。 提升元件设置在钻孔内,泄漏允许配合。 与钻孔连通的流体室包含通过受控的主驱动和提升元件的轴向移动以剂量方式分配的流体。

    Magnetostrictive actuator
    67.
    发明授权
    Magnetostrictive actuator 失效
    磁致伸缩致动器

    公开(公告)号:US5850109A

    公开(公告)日:1998-12-15

    申请号:US913402

    申请日:1997-09-12

    IPC分类号: F04B17/00 H01L41/12 H04R15/00

    摘要: Drive elements whose physical volume is considerably smaller than piezoelectric actuators for comparable mechanical characteristics and actuation travels can be developed on the basis of the magnetostrictive material Tb.sub.x Dy.sub.1-x Fe.sub.2 (Terfenol). Despite these characteristics, magnetostrictive actuators have until now been used only where no rapid switching processes or actuation movements are required. An actuator of compact construction responds to an electrical drive signal very quickly and can produce large actuation forces. The actuator typically contains N.apprxeq.100 drive elements (1, 1') which are arranged one above the other in the form of a stack, are each of layered construction, and are provided with electrical connections. The drive elements (1, 1') each have a small metal plate (4, 4'), which is arranged between two insulators (2, 2', 3, 3'), and an actuator element (5, 5') which is manufactured from Terfenol. When current flows through it, the small metal plate (4, 4'), which is slotted in a U-shape, acts as a planar annular coil whose magnetic field passes through the actuator element (5, 5') and causes magnetostriction there.

    摘要翻译: PCT No.PCT / DE96 / 00384 Sec。 371日期:1997年9月12日 102(e)日期1997年9月12日PCT提交1996年3月5日PCT公布。 公开号WO96 / 29748 日期1996年9月26日可以在磁致伸缩材料TbxDy1-xFe2(Terfenol)的基础上开发物理体积远小于压电致动器的相当的机械特性和致动行程的驱动元件。 尽管有这些特征,但是迄今为止,只有在不需要快速切换过程或致动运动的地方才使用磁致伸缩致动器。 紧凑结构的致动器非常快速地响应电驱动信号并且可以产生大的致动力。 致动器通常包含以堆叠的形式彼此排列的N个大约100个驱动元件(1,1'),每个都是分层结构,并且设置有电连接。 驱动元件(1,1')各自具有设置在两个绝缘体(2,2',3,3')和致动器元件(5,5')之间的小金属板(4,4'), 它是由Terfenol制造的。 当电流流过其中时,开槽为U形的小金属板(4,4')起到平面环形线圈的作用,其中磁场通过致动器元件(5,5')并在其中引起磁致伸缩 。

    High-temperature sensor made of metal of the platinum group
    68.
    发明授权
    High-temperature sensor made of metal of the platinum group 失效
    由铂族金属制成的高温传感器

    公开(公告)号:US5430428A

    公开(公告)日:1995-07-04

    申请号:US87811

    申请日:1993-07-15

    CPC分类号: H01C7/021 G01K7/183

    摘要: A rapid temperature sensor formed of a metal from the platinum group is provided. The rapid temperature sensor includes a substrate over which a platinum resistive layer is provided. A double layer, forming a passivation layer, is provided over the platinum resistive layer to prevent oxidation. The double layer includes a ceramic layer and a glass layer. The double layer prevents oxygen from reaching the platinum resistive layer even at temperatures up to 1,000.degree. C.

    摘要翻译: PCT No.PCT / EP92 / 00223 Sec。 371日期:1993年7月15日 102(e)日期1993年7月15日PCT提交1992年2月3日PCT公布。 第WO92 / 15101号公报 日期:1992年9月3日。提供了由铂族金属制成的快速温度传感器。 快速温度传感器包括其上设置有铂电阻层的基板。 在铂电阻层上提供形成钝化层的双层以防止氧化。 双层包括陶瓷层和玻璃层。 即使在高达1000℃的温度下,双层防止氧气到达铂电阻层。

    Pyrodetector suited for movement-selective and direction-selective
detection
    70.
    发明授权
    Pyrodetector suited for movement-selective and direction-selective detection 失效
    适用于移动选择和方向选择性检测的热电探测器

    公开(公告)号:US4831259A

    公开(公告)日:1989-05-16

    申请号:US49281

    申请日:1987-05-13

    CPC分类号: G08B13/191 Y10S250/01

    摘要: A pyrodetector, which is both movement selective and directional selective, has preferably a foil supporting detector elements relative to a concave mirror which may have a spherical curve surface, a spherical-parabolic curve surface or a curve surface between a spherical surface and a spherical-parabolic surface. The sensor is preferably a plurality of individual sensor elements which are arranged on an arc, preferably on a planar member or a foil, and may include additional or second sensor elements having electrodes which are for determining temperature compensation for the detector.

    摘要翻译: 具有移动选择性和方向性选择性的热解测定器优选地具有相对于凹面镜的支撑检测器元件的箔,该凹面镜可以具有球形曲面,球形抛物线曲面或球形表面和球形 - 抛物面 传感器优选地是多个单独的传感器元件,其被布置在弧形上,优选地在平面构件或箔上,并且可以包括具有用于确定检测器的温度补偿的电极的附加或第二传感器元件。