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公开(公告)号:US06433334B1
公开(公告)日:2002-08-13
申请号:US09647997
申请日:2000-10-10
申请人: Johann Goebel , Ulrich Breit
发明人: Johann Goebel , Ulrich Breit
IPC分类号: H01J4940
CPC分类号: G01N27/622
摘要: In an ion mobility spectrometer, especially a miniaturized ion mobility spectrometer, the potential-conducting surfaces of the ion collector and ion gate form an angle less than 90° with the drift chamber axis. This makes it possible to provide openings in the face of the drift chamber for the required purge gas supply without limiting the size of the potential-conducting surface.
摘要翻译: 在离子迁移谱仪中,特别是小型离子迁移谱仪,离子收集器和离子浇道的导电表面与漂移室轴线形成小于90°的角度。 这使得可以在漂移室的表面提供用于所需的净化气体供应的开口,而不限制导电表面的尺寸。
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公开(公告)号:US06479815B1
公开(公告)日:2002-11-12
申请号:US09647991
申请日:2000-10-10
申请人: Johann Goebel , Christoph Wagner , Ulrich Breit , Harald Ertl
发明人: Johann Goebel , Christoph Wagner , Ulrich Breit , Harald Ertl
IPC分类号: H01J4940
CPC分类号: G01N27/622
摘要: An ion mobility spectrometer has two opposing wall elements connected by at least one spacer with parallel, mutually assigned, planar, gas-guiding wall surfaces with opposing conductor structures to generate a drift field. The ratio of distance of the gas-guiding wall surfaces to the field-generating width of the conductor structure perpendicular to the drift direction is less than 1:2 and is advantageously 1:3 to 1:10.
摘要翻译: 离子迁移谱仪具有两个相对的壁元件,其通过至少一个间隔件与平行的,相互分配的平面的气体导向壁表面连接,具有相对的导体结构以产生漂移场。 导气壁表面的距离与垂直于漂移方向的导体结构的场产生宽度之比小于1:2,有利地为1:3至1:10。
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公开(公告)号:US6049076A
公开(公告)日:2000-04-11
申请号:US985903
申请日:1997-12-05
申请人: Johann Goebel , Ulrich Breit
发明人: Johann Goebel , Ulrich Breit
CPC分类号: G01N27/622
摘要: An ion mobility spectrometer has an ionization chamber, drift chamber, and a system for generating an electrical field in the drift chamber. The system for generating the electrical field comprises a plurality of capacitors that are connected together in parallel for charging and are connected in series for generating a high-voltage.
摘要翻译: 离子迁移谱仪具有电离室,漂移室和用于在漂移室中产生电场的系统。 用于产生电场的系统包括多个电容器,它们并联连接在一起用于充电并串联连接以产生高电压。
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公开(公告)号:US05998788A
公开(公告)日:1999-12-07
申请号:US986800
申请日:1997-12-08
申请人: Ulrich Breit
发明人: Ulrich Breit
CPC分类号: G01N27/622
摘要: In an ion mobility spectrometer (IMS), the essential parts, namely the ion gate, the drift chamber, and the ion collector, consist of pieces that are slice or wafer shaped, and are either anisotropically etchable or can be machined using micromechanical methods. The parts are held together by clamps, adhesives, or other known assembly methods. The drift chamber consists of two sliced pieces with a through groove being etched or milled in one of them. The groove is covered by the other smooth piece so that a drift channel is produced. The drift channel is closed at one end by a grid-shaped ion gate, which is similarly made from a sliced piece by etching or milling while the opposite end of the drift channel is closed by the ion collector, which is likewise made from a sliced piece that is electrically conducting on the inside.
摘要翻译: 在离子迁移谱仪(IMS)中,基本部件,即离子浇口,漂移室和离子收集器由切片或晶片形状的部件组成,可以是各向异性蚀刻的,也可以使用微机械方法加工。 这些部件通过夹具,粘合剂或其他已知的装配方法保持在一起。 漂移室由两个切片构成,其中一个切割件具有蚀刻或铣削的通孔。 凹槽由另一个平滑的部分覆盖,从而产生漂移通道。 漂移通道在一端被栅格离子浇口封闭,栅极形状离子浇口由蚀刻或研磨同样由切片构成,而漂移通道的相对端由离子收集器封闭,同样由切片 在内部导电的部件。
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