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11. 发明授权

US07430046B2 Pathogen and particle detector system and method 有权
标题翻译：病原体和粒子检测器系统及方法
公开(公告)号：US07430046B2
公开(公告)日：2008-09-30
申请号：US11193204
申请日：2005-07-29
申请人： Jian-Ping Jiang , John Babico , Michael Morrell
发明人： Jian-Ping Jiang , John Babico , Michael Morrell
IPC分类号： G01N15/02
CPC分类号： G01N15/0205 , G01N21/05 , G01N21/53 , G01N21/6486 , G01N2015/0088 , H03K5/04
摘要： A particle detector has a sample area of cross section no in excess of about 2 mm for containing environmental fluid, a light source on one side of the sample area for directing a collimated or nearly collimated beam of light through the sample air or water so that part of the light beam will be scattered by any particles present in the air or water while the remainder remains unscattered, and a beam diverting device on the opposite side of the sample area for diverting or blocking at least the unscattered portion of the beam of light and directing at least part of the scattered light onto a detector. The detector produces output pulses in which each pulse has a height proportional to particle size and a pulse height discriminator obtains the size distribution of airborne particles detected in the air or water sample at a given time from the detector output. The detector may also include a device for discriminating between biological agents and inorganic particles.
摘要翻译：颗粒检测器具有用于容纳环境流体的横截面积不超过约2mm的样品区域，在样品区域的一侧上的光源用于将准直或几乎准直的光束引导通过样品空气或水，使得光束的一部分将被存在于空气或水中的任何颗粒散射，而剩余部分保持不散射，并且在样品区域的相对侧上的光束转向装置用于转移或阻挡至少光束的未散射部分并将至少部分散射光引导到检测器上。检测器产生输出脉冲，其中每个脉冲具有与粒度成比例的高度，并且脉冲高度鉴别器获得在从检测器输出的给定时间在空气或水样品中检测到的气载颗粒的尺寸分布。检测器还可以包括用于区分生物制剂和无机颗粒的装置。

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