Chemical vapor sensor
    2.
    发明授权
    Chemical vapor sensor 有权
    化学气相传感器

    公开(公告)号:US07700044B2

    公开(公告)日:2010-04-20

    申请号:US11033677

    申请日:2005-01-12

    IPC分类号: G01N30/96

    摘要: A chemical vapor sensor is provided that passively measures a chemical species of interest with high sensitivity and chemical specificity. In an aspect, ethanol vapor in a vehicle cabin is measured, and sufficient sensitivity is provided to passively detect a motor vehicle driver that exceeds a legal limit of blood alcohol concentration (BAC), for use with vehicle safety systems. The sensor can be situated in an inconspicuous vehicle cabin location and operate independently without requiring active involvement by a driver. A vapor concentrator is utilized to amplify a sampled vapor concentration to a detectible level for use with an infrared (IR) detector. In an aspect, in comparison to conventional chemical sensors, the sensitivity of detection of ethanol vapor is increased by a factor of about 1,000. Further, a single channel of infrared detection is utilized avoiding spurious infrared absorption and making the chemical vapor sensor less costly to implement.

    摘要翻译: 提供一种化学气相传感器,被动地测量感兴趣的化学物质,具有高灵敏度和化学特异性。 在一方面,测量车厢内的乙醇蒸气,并且提供足够的灵敏度以被动地检测超过合法限制的血液酒精浓度(BAC)的汽车驾驶员,以用于车辆安全系统。 传感器可以位于不显眼的车厢位置,并且独立操作,而不需要驾驶员的积极参与。 采用蒸汽浓缩器将取样的蒸汽浓度放大到可检测的水平以与红外(IR)检测器一起使用。 在一方面,与传统的化学传感器相比,乙醇蒸气的检测灵敏度提高了大约1,000倍。 此外,利用单个红外线检测通道可避免杂散的红外线吸收,并且使化学气相传感器的执行成本更低。

    Method and apparatus for detecting the head pose of a vehicle occupant
    3.
    发明授权
    Method and apparatus for detecting the head pose of a vehicle occupant 有权
    用于检测车辆乘客的头部姿势的方法和装置

    公开(公告)号:US07675296B2

    公开(公告)日:2010-03-09

    申请号:US11519043

    申请日:2006-09-11

    IPC分类号: G01R27/26 B60K28/00 G08B23/00

    摘要: Driver distraction in a motor vehicle is assessed by capacitively detecting the driver's head pose relative to the forward direction of vehicle motion. A symmetrical array of sensor electrodes is disposed in the cockpit ceiling above the driver's head, and pairs of electrodes disposed along varying axes of rotation with respect to the forward direction are successively activated for capacitance measurement. The capacitance measurements are combined to form a signal whose strength depends on the degree of alignment between the driver's head (i.e., the head pose) and the respective axes of rotation, and the driver's head pose is calculated to assess driver distraction.

    摘要翻译: 通过电容性地检测驾驶员的头部相对于车辆运动方向的头部姿势来评估机动车辆中的驾驶员分心。 传感器电极的对称阵列设置在驾驶员头部上方的驾驶舱顶部中,并且相对于向前方向沿着旋转轴线布置的电极对依次被激活用于电容测量。 电容测量被组合以形成其强度取决于驾驶员头部(即,头部姿态)与相应的旋转轴线之间的对准程度的信号,并且计算驾驶员头部姿势以评估驾驶员分心。

    Method and apparatus for detecting the head pose of a vehicle occupant
    4.
    发明申请
    Method and apparatus for detecting the head pose of a vehicle occupant 有权
    用于检测车辆乘客的头部姿势的方法和装置

    公开(公告)号:US20080060497A1

    公开(公告)日:2008-03-13

    申请号:US11519043

    申请日:2006-09-11

    IPC分类号: G10D3/04

    摘要: Driver distraction in a motor vehicle is assessed by capacitively detecting the driver's head pose relative to the forward direction of vehicle motion. A symmetrical array of sensor electrodes is disposed in the cockpit ceiling above the driver's head, and pairs of electrodes disposed along varying axes of rotation with respect to the forward direction are successively activated for capacitance measurement. The capacitance measurements are combined to form a signal whose strength depends on the degree of alignment between the driver's head (i.e., the head pose) and the respective axes of rotation, and the driver's head pose is calculated to assess driver distraction.

    摘要翻译: 通过电容性地检测驾驶员的头部相对于车辆运动方向的头部姿势来评估机动车辆中的驾驶员分心。 传感器电极的对称阵列设置在驾驶员头部上方的驾驶舱顶部中,并且相对于向前方向沿着旋转轴线布置的电极对依次被激活用于电容测量。 电容测量被组合以形成其强度取决于驾驶员头部(即,头部姿态)与相应的旋转轴线之间的对准程度的信号,并且计算驾驶员头部姿势以评估驾驶员分心。

    Transparent overlay input device
    5.
    发明授权
    Transparent overlay input device 有权
    透明叠加输入设备

    公开(公告)号:US07352355B2

    公开(公告)日:2008-04-01

    申请号:US10281863

    申请日:2002-10-28

    IPC分类号: G09G5/00

    摘要: A transparent overlay input device includes a transparent non-conductive substrate, a plurality of transparent conductive electrode pairs and a transparent non-conductive cover. The plurality of transparent conductive electrode pairs are formed on the substrate and each form a proximity sensitive region and include a first electrode that receives an input signal and a second electrode that provides an output signal. The first and second electrodes are capacitively coupled and the capacitance of the electrode pair changes when a conductive member, e.g., a user's finger, is located near the electrode pair. The transparent non-conductive cover is formed on the substrate over the electrode pairs.

    摘要翻译: 透明覆盖输入装置包括透明非导电基板,多个透明导电电极对和透明非导电盖。 多个透明导电电极对形成在衬底上并且各自形成接近敏感区域,并且包括接收输入信号的第一电极和提供输出信号的第二电极。 第一和第二电极电容耦合,并且当导电构件(例如使用者的手指)位于电极对附近时,电极对的电容变化。 在电极对上的基板上形成透明非导电性盖。

    Method for measuring high frequency resistance in diesel engine lubrication oil
    6.
    发明授权
    Method for measuring high frequency resistance in diesel engine lubrication oil 失效
    柴油机润滑油高频阻力测量方法

    公开(公告)号:US06867603B2

    公开(公告)日:2005-03-15

    申请号:US10310126

    申请日:2002-12-04

    CPC分类号: G01N33/2888 G01N27/02

    摘要: Soot content in Diesel engine lubrication oil is determined using electrical resistance measurements of the oil at high frequency. A sensor in the form of a capacitor is immersed in the oil, wherein the oil serves as a dielectric between the plates. The capacitance and resistance between the plates change as a function of engine oil condition. An inductor is placed in series with the sensor, and high frequencies are sweeped over a range to find resonance where the capacitive and inductive reactances cancel. At this frequency, the resistance of the oil is measured and the condition of the oil thereby determined.

    摘要翻译: 柴油发动机润滑油中的烟灰含量使用高频油的电阻测量来确定。 将电容器形式的传感器浸入油中,其中油用作板之间的电介质。 板之间的电容和电阻随发动机油条件而变化。 电感器与传感器串联放置,并且高频扫过一定范围,以找到容性和电感抵消的共振。 在该频率下,测量油的阻力,从而确定油的状态。

    Apparatus, system and method for measuring stress
    7.
    发明申请
    Apparatus, system and method for measuring stress 有权
    用于测量应力的装置,系统和方法

    公开(公告)号:US20080216582A1

    公开(公告)日:2008-09-11

    申请号:US11713961

    申请日:2007-03-05

    IPC分类号: G01M5/00 H01L41/00

    CPC分类号: G01L1/125

    摘要: A system for measuring stress including a coilless sensor including at least one band of electrically conductive and magnetostrictive material, the band having a first end and a second end defining a gap therebetween, a measuring circuit electrically connected to the first and second ends of the coilless sensor, the measuring circuit being configured to pass a current through the coilless sensor and measure at least one of an inductance, a resistance and an impedance of the coilless sensor in response to the current, and a processor in electrical communication with the measuring circuit, the processor being configured to calculate an amount of stress being applied to the coilless sensor based upon the measured inductance, resistance and impedance.

    摘要翻译: 一种用于测量应力的系统,包括无电感传感器,其包括至少一个导电和磁致伸缩材料带,所述带具有第一端和限定其间的间隙的第二端;测量电路,电连接到无铁芯的第一和第二端 传感器,所述测量电路被配置为使电流通过所述无芯焊传感器并响应于所述电流测量所述无连续传感器的电感,电阻和阻抗中的至少一个,以及与所述测量电路电连通的处理器, 所述处理器被配置为基于所测量的电感,电阻和阻抗来计算施加到所述无芯体传感器的应力的量。

    Robust detection of strain with temperature correction
    8.
    发明授权
    Robust detection of strain with temperature correction 有权
    具有温度校正的应变的鲁棒检测

    公开(公告)号:US07362096B2

    公开(公告)日:2008-04-22

    申请号:US11256483

    申请日:2005-10-21

    IPC分类号: G01B7/24 G01L1/12

    摘要: An apparatus (10) is set forth for measuring a return signal of a magnetostrictive sensor (20) that detects a force, torque, or pressure. The return signal includes noise, a DC resistance (44), an AC resistance and an inductance and the inductance is shifted ninety degrees from the AC resistance. The apparatus (10) includes a sensor filter (22) to remove the noise from the return signal. A sensor filter (22) shifts the return signal and more specifically, the inductance by an additional angle and the sum of the additional angle and the ninety degrees phase shift is defined as the final detection angle. To detect the inductance at the final detection angle, a wave filter (16) and a reference filter (28) shifts a reference signal by the final detection angle to trigger a first demodulator (26) to detect the inductance at the final detection angle. The inductance detected by the first demodulator (26) varies due to temperature. To remove the temperature from the measured inductance, the apparatus includes a DC detection circuit (42) to detect the DC resistance which is proportional to the temperature across the sensor (20). The DC resistance and the measure inductance are inserted into a correction equation to produce a corrected inductance which is independent of temperature. Instead of inductance, an AC resistance may be used in the equation.

    摘要翻译: 提出了一种用于测量检测力,扭矩或压力的磁致伸缩传感器(20)的返回信号的装置(10)。 返回信号包括噪声,直流电阻(44),交流电阻和电感,电感从交流电阻偏移九十度。 装置(10)包括用于从返回信号中去除噪声的传感器滤波器(22)。 传感器滤波器(22)将返回信号更具体地将电感移位一个额外的角度,并将附加角和90度相移之和定义为最终检测角度。 为了在最终检测角度检测电感,滤波器(16)和参考滤波器(28)将参考信号移位最终检测角度,以触发第一解调器(26)以检测最终检测角度的电感。 由第一解调器(26)检测的电感由于温度而变化。 为了从测量的电感中去除温度,该装置包括一个DC检测电路(42),用于检测与传感器(20)两端的温度成比例的直流电阻。 将直流电阻和测量电感插入到校正方程中以产生与温度无关的校正电感。 代替电感,可以在等式中使用AC电阻。

    Gas sensor and method of producing the same

    公开(公告)号:US06579436B2

    公开(公告)日:2003-06-17

    申请号:US09740354

    申请日:2000-12-18

    IPC分类号: G01N27407

    CPC分类号: G01N27/419

    摘要: A gas sensor, comprising an oxygen pump cell with a first pump electrode and a second pump electrode disposed on opposite sides of a first solid electrolyte layer and a second pump electrode. The sensor also comprises an emf cell with an emf electrode and a reference gas electrode disposed on opposite sides of a second solid electrolyte layer. The emf electrode is disposed in fluid communication to the second pump electrode. A via hole is disposed through the first solid electrolyte layer, such that the first pump electrode is in fluid communication with the second pump electrode. A protective insulating layer, having a passage for gas to be sensed, is disposed in contact with the first pump electrode. A first insulating layer, having a conduit, is disposed in contact with the emf electrode. A second insulating layer, having an air channel, is disposed in contact with the reference gas electrode. A heater is disposed in thermal communication with the emf cell. At least four electrical leads are in electrical communication with the sensor. A method of producing a gas sensor is disclosed.

    Apparatus, system and method for measuring stress
    10.
    发明授权
    Apparatus, system and method for measuring stress 有权
    用于测量应力的装置,系统和方法

    公开(公告)号:US07523671B2

    公开(公告)日:2009-04-28

    申请号:US11713961

    申请日:2007-03-05

    IPC分类号: G01L1/00 G01L1/12

    CPC分类号: G01L1/125

    摘要: A system for measuring stress including a coilless sensor including at least one band of electrically conductive and magnetostrictive material, the band having a first end and a second end defining a gap therebetween, a measuring circuit electrically connected to the first and second ends of the coilless sensor, the measuring circuit being configured to pass a current through the coilless sensor and measure at least one of an inductance, a resistance and an impedance of the coilless sensor in response to the current, and a processor in electrical communication with the measuring circuit, the processor being configured to calculate an amount of stress being applied to the coilless sensor based upon the measured inductance, resistance and impedance.

    摘要翻译: 一种用于测量应力的系统,包括无电感传感器,其包括至少一个导电和磁致伸缩材料带,所述带具有第一端和限定其间的间隙的第二端;测量电路,电连接到无铁芯的第一和第二端 传感器,所述测量电路被配置为使电流通过所述无芯焊传感器并响应于所述电流测量所述无连续传感器的电感,电阻和阻抗中的至少一个,以及与所述测量电路电连通的处理器, 所述处理器被配置为基于所测量的电感,电阻和阻抗来计算施加到所述无芯体传感器的应力的量。