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    • 4. 发明申请
    • Trace Sampling
    • 跟踪采样
    • US20070086925A1
    • 2007-04-19
    • US11425313
    • 2006-06-20
    • Daniel O`DonnellEdward BrombergPaul CrabbRavi KonduriC. HelmDavid Fine
    • Daniel O`DonnellEdward BrombergPaul CrabbRavi KonduriC. HelmDavid Fine
    • B01L3/00
    • G01N1/2214G01N33/0057G01N2001/024G01N2001/028
    • A trace sampling detection system includes a gathering device configured to gather particles through a handle-bar, a gate and an air-stream gatherer. The handle-bar includes collection holes positioned to be adjacent to a user's hand when the user grips the handle-bar, and is configured to dislodge and capture particles from the user's hand when the user grips and moves the handle-bar. The gate includes a series of collection holes, is positioned to be adjacent to the user's clothing when the user traverses the gate, and is configured to dislodge and capture particles from the user's clothing in response to pressure applied from the user. The air-stream gatherer includes an outward vent and an in-drawing vent, and is positioned to enable objects, such as the user's feet, to be placed between the outward and in-drawing vents. The air stream is configured to dislodge and capture particles from objects, such as the user's feet, that block the air-stream between the vents. A collection tube is configured to deposit gathered particles from the gathering device onto a portion of a sample media. A carousel wheel that includes the sample media is configured to rotate the sample wheel such that the portion of the sample media including the gathered particles is presented to an exothermic decomposition detector that detects, through an infrared sensor, the decomposition of the gathered particles.
    • 轨迹采样检测系统包括:收集装置,其被配置成通过手柄条,门和空气流收集器收集颗粒。 把手杆包括当使用者握住手柄杆时与使用者的手相邻定位的收集孔,并且被配置为当用户握住并移动手柄杆时,从使用者的手中移除和捕获颗粒。 门包括一系列收集孔,当使用者穿过门时,被定位成与使用者的衣服相邻,并且被配置为响应于从使用者施加的压力而从使用者的衣服中移除和捕获颗粒。 气流收集器包括向外通风口和抽吸通风口,并且被定位成使得诸如使用者的脚之类的物体能够被放置在外部和抽吸通风口之间。 空气流被配置为从阻挡通气孔之间的空气流的物体(例如用户的脚)移除和捕获颗粒。 收集管被配置为将收集的颗粒从收集装置沉积到样品介质的一部分上。 包括样品介质的转盘轮被配置为旋转样品轮,使得包含聚集的颗粒的样品介质的部分被呈现给放热分解检测器,其通过红外传感器检测聚集的颗粒的分解。
    • 5. 发明申请
    • PRESSURE ACTIVATED SAMPLING SYSTEM
    • 压力激活采样系统
    • US20070062256A1
    • 2007-03-22
    • US11087818
    • 2005-03-24
    • David FineFreeman Fraim
    • David FineFreeman Fraim
    • G01N1/00
    • G01N1/2202G01N2001/022G01N2001/024Y10S436/901Y10T436/141111Y10T436/163333Y10T436/170769Y10T436/173845
    • Screening of items for the presence of contaminants, such as explosives residue, is accomplished by subjecting an item loaded into a pressure chamber to a pressure substantially in excess of atmospheric pressure conditions and rapidly decompressing the item to the ambient atmospheric pressure. The rapid decompression serves to scavenge vapors and particles from the exterior and interior of the item and any objects it contains. A sample of the vapors and particles removed from the item by the rapid decompression is sampled and is tested to determine whether a predetermined contaminant is present in the sample. Depending on the types of contaminants for which the sample is tested, it is possible to detect whether explosives, biological or chemical agents, and/or narcotics residues are present on or in the item being screened.
    • 通过对装载到压力室中的物品施加基本上超过大气压力条件的压力并将物品快速减压至环境大气压来实现污染物(例如爆炸物残渣)的存在的筛选。 快速减压用于清除物品的外部和内部以及其包含的任何物体的蒸气和颗粒。 对通过快速减压从物品中除去的蒸气和颗粒的样品进行采样,并进行测试以确定样品中是否存在预定的污染物。 根据测试样品的污染物类型,可以检测爆炸物,生物或化学物质和/或麻醉剂残留物是否存在于待筛选的物品上。