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    • 3. 发明申请
    • PATHOGEN AND PARTICLE DETECTOR SYSTEM AND METHOD
    • 病毒和粒子检测系统及方法
    • US20120147370A1
    • 2012-06-14
    • US12172190
    • 2008-07-11
    • Jian-Ping JiangJohn BabicoMichael Morrell
    • Jian-Ping JiangJohn BabicoMichael Morrell
    • G01N21/53
    • G01N15/0205G01N21/05G01N21/53G01N21/6486G01N2015/0088H03K5/04
    • 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.
    • 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。
    • 4. 发明申请
    • PATHOGEN AND PARTICLE DETECTOR SYSTEM AND METHOD
    • 病毒和粒子检测系统及方法
    • US20100108910A1
    • 2010-05-06
    • US11457988
    • 2006-07-17
    • Michael MorrellJian-Ping Jiang
    • Michael MorrellJian-Ping Jiang
    • G01J1/58G01N15/02
    • G01N15/0205G01N2015/0088
    • The system includes an excitation source for providing a beam of electromagnetic radiation having a source wavelength. A first wavelength selective device is positioned to be impinged by the beam of electromagnetic radiation. The first wavelength selective device is constructed to transmit at least a portion of any radiation having the source wavelength and to reflect radiation of other wavelengths. A medium containing particles is positioned to be impinged by the beam of electromagnetic radiation. At least a portion of the beam of electromagnetic radiation becomes scattered within the medium, the scattered electromagnetic radiation including forward scattered electromagnetic radiation and backward scattered electromagnetic radiation. An optical detector is positioned to receive backward and/or forward scattered electromagnetic radiation.
    • 该系统包括用于提供具有源波长的电磁辐射束的激励源。 第一波长选择装置定位成被电磁辐射束撞击。 第一波长选择装置被构造成透射具有源波长的任何辐射的至少一部分并且反射其他波长的辐射。 含有颗粒的介质被定位成被电磁辐射束撞击。 电磁辐射束的至少一部分在介质内散射,散射的电磁辐射包括前向散射的电磁辐射和向后散射的电磁辐射。 光学检测器被定位成接收向后和/或向前散射的电磁辐射。
    • 5. 发明申请
    • PATHOGEN AND PARTICLE DETECTOR SYSTEM AND METHOD
    • 病毒和粒子检测系统及方法
    • US20140078500A1
    • 2014-03-20
    • US13959054
    • 2013-08-05
    • Jian-Ping JiangJohn BabicoMichael Morrell
    • Jian-Ping JiangJohn BabicoMichael Morrell
    • G01N15/02G01N21/05
    • G01N15/0205G01N21/05G01N21/53G01N21/6486G01N2015/0088H03K5/04
    • 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 possible 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.
    • 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开,并且在样品区域的可能侧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。
    • 6. 发明授权
    • Pathogen and particle detector system and method
    • 病原体和粒子检测器系统及方法
    • US08218144B2
    • 2012-07-10
    • US12172190
    • 2008-07-11
    • Jian-Ping JiangJohn BabicoMichael Morrell
    • Jian-Ping JiangJohn BabicoMichael Morrell
    • G01N15/02G08B17/10
    • G01N15/0205G01N21/05G01N21/53G01N21/6486G01N2015/0088H03K5/04
    • 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.
    • 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。
    • 7. 发明申请
    • Pathogen and particle detector system and method
    • 病原体和粒子检测器系统及方法
    • US20070013910A1
    • 2007-01-18
    • US11193204
    • 2005-07-29
    • Jian-Ping JiangJohn BabicoMichael Morrell
    • Jian-Ping JiangJohn BabicoMichael Morrell
    • G01N15/02
    • G01N15/0205G01N21/05G01N21/53G01N21/6486G01N2015/0088H03K5/04
    • 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.
    • 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。
    • 8. 发明授权
    • Pathogen and particle detector system and method
    • 病原体和粒子检测器系统及方法
    • US07738099B2
    • 2010-06-15
    • US11457988
    • 2006-07-17
    • Michael MorrellJian-Ping Jiang
    • Michael MorrellJian-Ping Jiang
    • G01N15/02
    • G01N15/0205G01N2015/0088
    • The system includes an excitation source for providing a beam of electromagnetic radiation having a source wavelength. A first wavelength selective device is positioned to be impinged by the beam of electromagnetic radiation. The first wavelength selective device is constructed to transmit at least a portion of any radiation having the source wavelength and to reflect radiation of other wavelengths. A medium containing particles is positioned to be impinged by the beam of electromagnetic radiation. At least a portion of the beam of electromagnetic radiation becomes scattered within the medium, the scattered electromagnetic radiation including forward scattered electromagnetic radiation and backward scattered electromagnetic radiation. An optical detector is positioned to receive backward and/or forward scattered electromagnetic radiation.
    • 该系统包括用于提供具有源波长的电磁辐射束的激励源。 第一波长选择装置定位成被电磁辐射束撞击。 第一波长选择装置被构造成透射具有源波长的任何辐射的至少一部分并且反射其他波长的辐射。 含有颗粒的介质被定位成被电磁辐射束撞击。 电磁辐射束的至少一部分在介质内散射,散射的电磁辐射包括前向散射的电磁辐射和向后散射的电磁辐射。 光学检测器被定位成接收向后和/或向前散射的电磁辐射。
    • 9. 发明授权
    • Pathogen and particle detector system and method
    • 病原体和粒子检测器系统及方法
    • US07430046B2
    • 2008-09-30
    • US11193204
    • 2005-07-29
    • Jian-Ping JiangJohn BabicoMichael Morrell
    • Jian-Ping JiangJohn BabicoMichael Morrell
    • G01N15/02
    • G01N15/0205G01N21/05G01N21/53G01N21/6486G01N2015/0088H03K5/04
    • 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.
    • 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。