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51. 发明授权

US07375808B2 Method and system for sensing and identifying foreign particles in a gaseous environment 失效
标题翻译：用于在气体环境中感测和识别外来颗粒的方法和系统
公开(公告)号：US07375808B2
公开(公告)日：2008-05-20
申请号：US11536120
申请日：2006-09-28
申请人： Sang H. Choi , Yeonjoon Park
发明人： Sang H. Choi , Yeonjoon Park
IPC分类号： G01J3/30 , G01N21/64
CPC分类号： G01J3/4406 , G01J3/02 , G01J3/0229 , G01N21/6402 , G01N21/6456
摘要： An optical method and system sense and identify a foreign particle in a gaseous environment. A light source generates light. An electrically-conductive sheet has an array of holes formed through the sheet. Each hole has a diameter that is less than one quarter of the light's wavelength. The sheet is positioned relative to the light source such that the light is incident on one face of the sheet. An optical detector is positioned adjacent the sheet's opposing face and is spaced apart therefrom such that a gaseous environment is adapted to be disposed therebetween. Alterations in the light pattern detected by the optical detector indicate the presence of a foreign particle in the holes or on the sheet, while a laser induced fluorescence (LIF) signature associated with the foreign particle indicates the identity of the foreign particle.
摘要翻译：光学方法和系统感测并识别气态环境中的外来颗粒。光源产生光。导电片具有穿过片材形成的孔阵列。每个孔的直径小于光的波长的四分之一。片材相对于光源定位，使得光入射在片材的一个面上。光学检测器被定位成邻近片材的相对面并且与之隔开，使得气体环境适于设置在它们之间。由光学检测器检测到的光图案中的变化表明在空穴或片上存在异物，而与外来颗粒相关的激光诱导荧光（LIF）标记表示异物的身份。

52. 发明申请

US20080079938A1 Method And System For Sensing And Identifying Foreign Particles In A Gaseous Environment 失效
标题翻译：在气体环境中感应和识别外来颗粒的方法和系统
公开(公告)号：US20080079938A1
公开(公告)日：2008-04-03
申请号：US11536120
申请日：2006-09-28
申请人： Sang H. Choi , Yeonjoon Park
发明人： Sang H. Choi , Yeonjoon Park
IPC分类号： G01J3/30 , G01N21/64
CPC分类号： G01J3/4406 , G01J3/02 , G01J3/0229 , G01N21/6402 , G01N21/6456
摘要： An optical method and system sense and identify a foreign particle in a gaseous environment. A light source generates light. An electrically-conductive sheet has an array of holes formed through the sheet. Each hole has a diameter that is less than one quarter of the light's wavelength. The sheet is positioned relative to the light source such that the light is incident on one face of the sheet. An optical detector is positioned adjacent the sheet's opposing face and is spaced apart therefrom such that a gaseous environment is adapted to be disposed therebetween. Alterations in the light pattern detected by the optical detector indicate the presence of a foreign particle in the holes or on the sheet, while a laser induced fluorescence (LIF) signature associated with the foreign particle indicates the identity of the foreign particle.
摘要翻译：光学方法和系统感测并识别气态环境中的外来颗粒。光源产生光。导电片具有穿过该片形成的孔阵列。每个孔的直径小于光的波长的四分之一。片材相对于光源定位，使得光入射在片材的一个面上。光学检测器被定位成邻近片材的相对面并且与之隔开，使得气体环境适于设置在它们之间。由光学检测器检测到的光图案中的变化表明在空穴或片上存在异物，而与外来颗粒相关的激光诱导荧光（LIF）标记表示异物的身份。

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