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    Chemical vapor sensor
    5.
    发明申请
    Chemical vapor sensor 有权
    化学气相传感器

    公开(公告)号：US20060154377A1

    公开(公告)日：2006-07-13

    申请号：US11033677

    申请日：2005-01-12

    申请人： David Lambert ,  Larry Oberdier ,  Christopher Thrush

    发明人： David Lambert ,  Larry Oberdier ,  Christopher Thrush

    IPC分类号： G01N31/22

    CPC分类号： B82Y30/00 ,  B60K28/06 ,  G01N1/2214 ,  G01N1/405 ,  G01N21/0332 ,  G01N21/05 ,  G01N21/3504 ,  G01N33/4972 ,  G01N2001/2276 ,  G01N2021/158 ,  G01N2201/12707 ,  G01N2201/12792

    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。

    APPARATUS AND METHOD FOR MONITORING PARTICLE FLOW IN A STACK
    8.
    发明申请
    APPARATUS AND METHOD FOR MONITORING PARTICLE FLOW IN A STACK 审中-公开

    公开(公告)号：US20190195768A1

    公开(公告)日：2019-06-27

    申请号：US16322370

    申请日：2017-07-28

    申请人： PCME Limited

    发明人： David Christopher Unitt ,  Trevor Allan Lye ,  Bruce Greetham

    IPC分类号： G01N15/10 ,  G01F1/74 ,  G08B17/107

    CPC分类号： G01N15/10 ,  G01F1/74 ,  G01N15/0205 ,  G01N21/15 ,  G01N21/53 ,  G01N2015/0096 ,  G01N2015/1075 ,  G01N2021/536 ,  G01N2201/024 ,  G01N2201/12707 ,  G08B17/107

    摘要： A method and apparatus (1) for monitoring particles flowing in a stack are disclosed. The method comprises emitting light from a light source along an optical path for scattering from the particles, rotating a rotatable monitoring assembly (15) mounted in the optical path, and detecting the scattered light using a detector. The rotatable monitoring assembly (15) contains at least two in apertures, and the method further comprises rotating the rotatable monitoring assembly (15) into a plurality of different configurations. In an operation configuration, light passes through the rotatable monitoring assembly (15) and into the stack unimpeded. In a zero-check configuration, the rotatable monitoring assembly (15) blocks the light from reaching the stack. In a span-check configuration, light of varying intensity passes from the light source through the rotatable monitoring assembly (15) into the stack. In a contamination-check configuration, the light is reflected through the rotatable monitoring assembly (15) onto the detector, without entering the stack. In the safety-shutter configuration, the rotatable monitoring assembly (15) protects optical components in the instrument from particles in the stack.

    Data quality and ancillary data checking for Raman sensor
    10.
    发明授权
    Data quality and ancillary data checking for Raman sensor 有权
    拉曼传感器的数据质量和辅助数据检查

    公开(公告)号：US08306780B2

    公开(公告)日：2012-11-06

    申请号：US12359589

    申请日：2009-01-26

    申请人： Thomas H. Chyba ,  Brian Kelly

    发明人： Thomas H. Chyba ,  Brian Kelly

    IPC分类号： G06F11/30 ,  G21C17/00

    CPC分类号： G01N21/65 ,  G01J3/02 ,  G01J3/027 ,  G01J3/0286 ,  G01J3/44 ,  G01N2201/12 ,  G01N2201/1211 ,  G01N2201/12707

    摘要： Systems and methods for operating, particularly in the field, a Raman spectroscopy device that includes a laser, a spectrograph, an intensified charge coupled device (ICCD), and an autofocus subsystem. Before spectral data acquisition commences a series of ancillary data checks is performed to monitor operating conditions of at least the laser, the ICCD, and the autofocus subsystem. Further, after each Raman spectrum acquisition, a series of data quality checks is performed to enhance confidence in the just collected data. Only spectral data that passes the data quality checks are further processed. However, all spectral data are stored in a log file. When the log file reaches a predetermined capacity, the log file is closed, and a new round of ancillary data checks is performed to again monitor the status of the Raman spectroscopy device.

    摘要翻译： 包括激光器，光谱仪，强化电荷耦合器件（ICCD）和自动聚焦子系统的拉曼光谱设备的系统和方法，特别是在现场操作。 在光谱数据采集开始之前，执行一系列辅助数据检查以监视至少激光器，ICCD和自动聚焦子系统的操作条件。 此外，在每个拉曼光谱获取之后，执行一系列数据质量检查以增强刚刚收集的数据的置信度。 只有通过数据质量检查的光谱数据才能进一步处理。 然而，所有光谱数据都存储在日志文件中。 当日志文件达到预定容量时，关闭日志文件，并执行新一轮辅助数据检查，以再次监视拉曼光谱设备的状态。