HAZARDOUS CHEMICALS DETECTOR & METHODS OF USE THEREOF
    1.
    发明申请
    HAZARDOUS CHEMICALS DETECTOR & METHODS OF USE THEREOF 审中-公开
    危险化学品检测器及其使用方法

    公开(公告)号:US20110027899A1

    公开(公告)日:2011-02-03

    申请号:US12703582

    申请日:2010-02-10

    CPC classification number: G01N33/0013 G01N33/0057 Y10T436/178459

    Abstract: Embodiments of the invention are directed to an apparatus and method for detecting explosive compounds by air sampling followed by subjecting the air sample to a detection method. In one embodiment, a test area is sampled by drawing air from the vicinity of the test area, heating or irradiating the air sample and subjecting the irradiated sample to a detection method. With respect to nitrogen-containing explosive compounds, heating or irradiating the air sample produces nitrogen dioxide (NO2). With respect to non-nitrogen-containing explosive compounds (e.g., oxygen-containing explosive compounds), the air sample may be exposed to a source of nitrogen monoxide (NO) to generate nitrogen dioxide (NO2). With respect to nitrogen-containing samples that preferentially generate nitrogen monoxide (NO) rather than nitrogen dioxide (NO2), gas titration may be integrated into the system to convert nitrogen monoxide (NO) to nitrogen dioxide (NO2). The resultant nitrogen dioxide (NO2) may be detected by a nitrogen dioxide analyzer (“NO2-analyzer”) by a device such as, but not limited to, a cavity attenuated ring down spectrometer with gated integrated detection (CARDS-GID), a cavity phase shift spectroscopy (CAPS)-based instrument, or a laser-induced fluorescence detector (LIF).

    Abstract translation: 本发明的实施例涉及一种用于通过空气取样检测爆炸性化合物,然后对空气样品进行检测方法的装置和方法。 在一个实施例中,通过从测试区域附近抽取空气,加热或照射空气样品并对经过照射的样品进行检测方法来对测试区域进行采样。 对于含氮爆炸性化合物,加热或照射空气样品会产生二氧化氮(NO2)。 关于非含氮的爆炸性化合物(例如含氧爆炸性化合物),空气样品可能暴露于一氧化氮源(NO)以产生二氧化氮(NO2)。 对于优先产生一氧化氮(NO)而不是二氧化氮(NO2)的含氮样品,气体滴定可以整合到体系中以将一氧化氮(NO)转化为二氧化氮(NO 2)。 所得到的二氧化氮(NO 2)可以通过二氧化氮分析仪(“NO2分析仪”)通过诸如但不限于具有门控集成检测(CARDS-GID)的腔衰减环形光谱仪, 腔相移光谱(CAPS)仪器或激光诱导荧光检测器(LIF)。

    Chemical explosive detector
    2.
    发明授权
    Chemical explosive detector 有权
    化学爆炸物检测仪

    公开(公告)号:US08846407B2

    公开(公告)日:2014-09-30

    申请号:US13524971

    申请日:2012-06-15

    Abstract: A method and device for detecting explosive compounds in an air sample in which the air sample is filtered with activated carbon treated with a weakly basic solution, after which the air sample is divided into two parts, with one part being heated at lower temperatures to decompose non-explosive nitrogenous compounds and the second part being heated at higher temperatures to decompose explosive nitrogenous compounds. Nitrogen dioxide is measured in both portions of the air sample with a spectrographic detector, and the presence or absence of explosive nitrogenous compounds in the air sample is determined.

    Abstract translation: 一种用于检测空气样品中爆炸性化合物的方法和装置,其中空气样品用用弱碱溶液处理的活性炭过滤,之后将空气样品分成两部分,一部分在较低温度下加热以分解 非爆炸性含氮化合物,第二部分在较高温度下加热以分解爆炸性含氮化合物。 在空气样品的两个部分用光谱检测器测量二氧化氮,并确定空气样品中是否存在爆炸性含氮化合物。

    Method And System For Obtaining Geographic Location Information
    3.
    发明申请
    Method And System For Obtaining Geographic Location Information 审中-公开
    获取地理位置信息的方法和系统

    公开(公告)号:US20090157418A1

    公开(公告)日:2009-06-18

    申请号:US12138695

    申请日:2008-06-13

    CPC classification number: G01S5/0009 G06Q10/06

    Abstract: Location data corresponding to the geographic location of a particular event is obtained in response to information concerning the event and received at a computing device present at the geographic location. The geographic location information is used to produce a map or other visual display corresponding to the event and to the geographic location thus obtained. The geographic location information may be obtained from any appropriate source such as a GPS receiver or wireless system capable of providing geographic location information with accuracy acceptable to the particular application. The GPS receiver or other source of geographic location information may be incorporated into the computing device, or may comprise a separate element operationally interrelated so as to obtain the current geographic location information in response to entering the event information at the computing device.

    Abstract translation: 对应于特定事件的地理位置的位置数据是响应于与在该地理位置处存在的计算设备相关的事件的信息而获得的。 地理位置信息用于产生与事件相对应的地图或其他视觉显示以及由此获得的地理位置。 地理位置信息可以从任何适当的来源获得,例如能够提供特定应用可接受的准确性的地理位置信息的GPS接收机或无线系统。 GPS接收机或其他地理位置信息源可以并入到计算设备中,或者可以包括可操作地相关联的单独元件,以响应于在计算设备处输入事件信息而获得当前的地理位置信息。

Patent Agency Ranking