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公开(公告)号：US5596407A
公开(公告)日：1997-01-21
申请号：US477169
申请日：1995-06-07
CPC分类号： G01J3/2803
摘要： A solid-state detector for use in an atomic spectrometer comprises a plurality of arrays of sensing elements, or pixels, each of the arrays being positioned along and on the locations of spectral signals on a focal plane of an echelle grating spectrometer. The sensing elements are positioned along the many diffraction orders presented on a two-dimensional echelle grating focal plane so that at least one element is located at each and every resolution element regardless of global x-y coordinate positioning of the elements or with reference to each other. The result is a series of skewed lines of sensing elements, those lines being in the same shape as the series of diffraction order lines which comprise an echelle spectrum. The solid-state detector is particularly useful in an atomic spectrometer wherein an echelle grating is used to diffract incident radiation such that the various components of the radiation may be observed.
摘要翻译： 用于原子光谱仪的固态检测器包括多个感测元件或像素阵列，每个阵列沿着光谱信号的位置定位在梯形光栅光谱仪的焦平面上。 感测元件沿着呈现在二维光栅焦平面上的许多衍射级定位，使得至少一个元件位于每个分辨率元素处，而不管元件的全局x-y坐标定位或彼此参考。 结果是传感元件的一系列偏斜线，那些线与包括梯形图的一系列衍射级线具有相同的形状。 固态检测器在原子光谱仪中特别有用，其中使用梯形光栅衍射入射辐射，使得可观察到辐射的各种成分。
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公开(公告)号：US5452069A
公开(公告)日：1995-09-19
申请号：US137854
申请日：1993-10-15
摘要： A spark sampling microparticle generator device and method providing means to first ionize a gap and then to switch a stabilized and controllable current into and out of said ionized gap to provide extremely high, selectable current density in a sample material in said gap with very fast rise and fall times to ablate said material to form microparticles. A plurality of identical modular circuits containing high frequency power transistors are selectably switchably connected in parallel simultaneously to the gap to achieve current densities which are higher than achievable with a single transistor, thereby obtaining the benefits of the high frequency response without being limited by the current limitations of the available transistors.
摘要翻译： 火花采样微粒发生器装置和方法，其提供装置，其首先电离间隙，然后将稳定和可控制的电流切换到和离开所述电离间隙，以在所述间隙中的样品材料中提供非常高的可选择的电流密度，具有非常快的上升 和下降时间以烧蚀所述材料以形成微粒。 包含高频功率晶体管的多个相同的模块电路可选择地并行地并行地与间隙连接，以实现高于单个晶体管可实现的电流密度，从而获得高频响应的优点而不受电流的限制 可用晶体管的限制。
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公开(公告)号：US4766287A
公开(公告)日：1988-08-23
申请号：US22910
申请日：1987-03-06
CPC分类号： H05H1/30 , H05H1/2475
摘要： An induction plasma system comprises a torch and an induction coil. A sample substance is injected into the plasma at an axial position that is adjustable while the plasma is being energized. The plasma-forming gas flows through the induction coil prior to passing through the plasma torch. A piezoelectric crystal is used for initiating the plasma. An oscillator network generates radio frequency power at a first frequency, and an output LC network that includes the induction coil is tuned to a second frequency higher than the first frequency. Means for maintaining constant power to the plasma includes an AC circuit for duty cycling AC power input to a DC power supply in response to a feedback signal relative to the rectified voltage. Thus a change in the rectified voltage effects an inverse change in the duty cycling such as to nullify the change in the rectified voltage.
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公开(公告)号：US20080116122A1
公开(公告)日：2008-05-22
申请号：US11827925
申请日：2007-07-13
摘要： The present invention relates to single-use chromatography devices and systems for use with a durable component for processing compounds such as protein compounds.
摘要翻译： 本发明涉及一种用于加工化合物如蛋白质化合物的耐用组分的一次性色谱装置和系统。
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