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公开(公告)号：US20120174650A1
公开(公告)日：2012-07-12
申请号：US13099295
申请日：2011-05-02
IPC分类号： G01N7/00
CPC分类号： G01N1/2202 , B03C3/017 , B03C3/08 , B03C3/12 , B03C3/41 , B03C3/47 , B03C2201/04 , B08B3/12 , B08B7/026 , G01N1/2208 , G01N1/2211 , G01N15/0266 , G01N15/0606 , G01N2001/2223 , G01N2001/383 , G01N2015/0038 , G01N2015/0088 , G01N2015/0096 , G01N2015/0261 , Y10T137/8376
摘要： The lifetime of aerosol monitoring, concentration and collection equipment is extended by acoustic cleaning of accreted particle deposits from internal surfaces where fouling occurs by application of acoustic energy to the particle accretion surface, optionally in combination with a liquid wash or sampling volume. In one application, acoustic cleaning or sampling of particle deposits for analysis is triggered by a signal indicating changes in gas flow associated with particle loading. In another application, electro-acoustic transducers may be used to prevent particle buildup without interruption of particle monitoring.
摘要翻译： 气溶胶监测，浓缩和收集设备的使用寿命通过声音清洁来自内部表面的积累的颗粒沉积物，其中通过将声能施加到颗粒吸附表面，任选地与液体洗涤或取样体积组合而发生结垢。 在一个应用中，用于分析的颗粒沉积物的声学清洁或取样由表示与颗粒负载相关联的气流的变化的信号触发。 在另一个应用中，可以使用电声换能器来防止颗粒聚集而不中断颗粒监测。
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公开(公告)号：US08539840B2
公开(公告)日：2013-09-24
申请号：US13099295
申请日：2011-05-02
IPC分类号： G01N3/02
CPC分类号： G01N1/2202 , B03C3/017 , B03C3/08 , B03C3/12 , B03C3/41 , B03C3/47 , B03C2201/04 , B08B3/12 , B08B7/026 , G01N1/2208 , G01N1/2211 , G01N15/0266 , G01N15/0606 , G01N2001/2223 , G01N2001/383 , G01N2015/0038 , G01N2015/0088 , G01N2015/0096 , G01N2015/0261 , Y10T137/8376
摘要： An apparatus or device for collecting aerosol particles from a gas stream, having a collector body enclosing a collector channel, a particle trap in the collector channel, and an injection duct for injecting a discrete microdroplet of an elution reagent. The particle trap may be a centrifugal impactor, a bluff body impactor, or an electrostatic impactor. Aerosol particles are deposited on the surface during collection and are subsequently eluted with a microdroplet or a series of microdroplets as a concentrated liquid sample so that the sample can be analyzed in situ or conveyed to a detector for analysis. The collector serves as an aerosol-to-liquid conversion module as part of an apparatus for detecting and analyzing aerosol particles, and may be used in an integrated environmental threat assessment system, for example for characterization of aerosolized chemical and biological weapons, or for industrial or environmental monitoring.
摘要翻译： 一种用于从气流收集气溶胶颗粒的装置或装置，其具有封闭收集器通道的收集器主体，收集器通道中的颗粒捕集器和用于注入洗脱试剂的离散微滴的注入管道。 颗粒捕集器可以是离心冲击器，非流线型冲击器或静电冲击器。 气溶胶颗粒在收集期间沉积在表面上，随后用微滴或一系列微滴作为浓缩液体样品洗脱，使得样品可以原位分析或输送到检测器进行分析。 收集器用作气溶胶 - 液体转化模块，作为用于检测和分析气溶胶颗粒的装置的一部分，并且可以用于综合的环境威胁评估系统，例如用于表征气雾化的化学和生物武器，或用于工业 或环境监测。
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