Gas sensor
    11.
    发明授权
    Gas sensor 有权
    气体传感器

    公开(公告)号:US08117894B2

    公开(公告)日:2012-02-21

    申请号:US12543260

    申请日:2009-08-18

    IPC分类号: G01N37/00

    CPC分类号: G01N27/122

    摘要: A sensor system issues measurement commands at a predetermined regular rate. If a measurement indicates that a gas of interest is present, then the sensor system is signaled to wake-up thereby pulsing a heater for the sensor element that improves the accuracy of measurements. Measurements of humidity, temperature and gas concentration are made. If the gas of interest is detected then the data is used to indicate a compensated gas measurement. The gas level is classified as to its hazard and an adaptive detection algorithm is used to set an activity mode. If the gas of interest is not detected, the adaptive detection algorithm is used to set a sleep mode that saves power. Measurement rates are kept constant while heater power is controlled to reduce power consumption. Measurement rates are changed to increase concentration sensitivity.

    摘要翻译: 传感器系统以预定的正常速率发出测量命令。 如果测量表明存在感兴趣的气体,则传感器系统被发信号通知以唤醒传感器元件的加热器,从而提高测量精度。 测量湿度,温度和气体浓度。 如果检测到感兴趣的气体,则数据用于指示补偿气体测量。 气体水平被分类为其危害,并且使用自适应检测算法来设置活动模式。 如果没有检测到感兴趣的气体,则使用自适应检测算法来设置节省功率的睡眠模式。 当加热器功率被控制以降低功耗时,测量速率保持恒定。 改变测量速率以提高浓度敏感度。

    Capacitance based biosensor
    12.
    发明授权
    Capacitance based biosensor 失效
    基于电容的生物传感器

    公开(公告)号:US07575720B2

    公开(公告)日:2009-08-18

    申请号:US11614580

    申请日:2006-12-21

    IPC分类号: G01N27/00

    CPC分类号: G01N27/3276

    摘要: A method for electronically detecting an electrostatic based biological binding event. This same binding event can be detected optically via complicated experimental setups. A balanced coil system is incorporated into a hand held unit with a plug-in chip. The chip may further be made to act like an array with a different surface molecule for detection of different bio-molecules.

    摘要翻译: 一种用于电子检测基于静电的生物结合事件的方法。 可以通过复杂的实验装置光学地检测相同的结合事件。 平衡线圈系统结合到具有插入式芯片的手持单元中。 芯片还可以被制成像具有不同表面分子的阵列一样起作用以检测不同的生物分子。

    CAPACITANCE BASED BIOSENSOR
    13.
    发明申请
    CAPACITANCE BASED BIOSENSOR 失效
    基于电容的生物传感器

    公开(公告)号:US20070151848A1

    公开(公告)日:2007-07-05

    申请号:US11614580

    申请日:2006-12-21

    IPC分类号: G01N27/26

    CPC分类号: G01N27/3276

    摘要: A method for electronically detecting an electrostatic based biological binding event. This same binding event can be detected optically via complicated experimental setups. A balanced coil system is incorporated into a hand held unit with a plug-in chip. The chip may further be made to act like an array with a different surface molecule for detection of different bio-molecules.

    摘要翻译: 一种用于电子检测基于静电的生物结合事件的方法。 可以通过复杂的实验装置光学检测相同的结合事件。 平衡线圈系统结合到具有插入式芯片的手持单元中。 芯片还可以被制成像具有不同表面分子的阵列一样起作用以检测不同的生物分子。

    High voltage pulse driver with capacitive coupling
    14.
    发明申请
    High voltage pulse driver with capacitive coupling 失效
    具有电容耦合的高压脉冲驱动器

    公开(公告)号:US20050078103A1

    公开(公告)日:2005-04-14

    申请号:US10956598

    申请日:2004-10-01

    CPC分类号: H03K17/102 H03K17/6872

    摘要: A high voltage driver with capacitive coupling that is useful in the presence of the high power supply ripple common with higher-voltage systems. It permits extreme ranges of duty cycle, but without the limitations of transformer magnetics, or the increased complexity of optical coupling methods. It is also robust in the presence of voltage transients created by high-voltage arcing to the output drive-line.

    摘要翻译: 具有电容耦合的高压驱动器,在高电压系统中存在高电源纹波的情况下是有用的。 它允许极端范围的占空比,但不受变压器磁性的限制,或者增加了光耦合方法的复杂性。 在存在由输出驱动线路的高压电弧产生的电压瞬变的情况下,它也是稳健的。

    Shutter for image projection system

    公开(公告)号:US06588909B2

    公开(公告)日:2003-07-08

    申请号:US10198183

    申请日:2002-07-18

    IPC分类号: G03B2128

    CPC分类号: G03B21/28

    摘要: An image projection system comprises an image projector, such as a film or television projector and a projection screen. The projection screen is fabricated of a substantially transparent material, such as glass or plastic. The screen of transparent material has one or more areas or portions formed therein which areas or portions may be made to be translucent upon the application of a stimulus. Once in a translucent condition, the projected image can be received and viewed on the translucent portion. A mirror can be positioned behind the projection screen so that a person can view the reflection of themselves in the mirror when the screen is transparent, and an image can be projected when the projection screen is made to be substantially translucent.