METHODS AND SYSTEMS FOR OPTICAL-BASED MEASUREMENT WITH SELECTABLE EXCITATION LIGHT PATHS

    公开(公告)号:US20170307528A1

    公开(公告)日:2017-10-26

    申请号:US15138660

    申请日:2016-04-26

    Abstract: In an optical-based sample analysis, for example fluorescence-based or absorbance-based measurement, a selection is made between a first excitation light path and a second excitation light path. The first excitation light path directs excitation light from a light source, through an excitation monochromator, through an excitation filter, and to a sample. The second excitation light path directs excitation light from the light source, through the excitation filter, and to the sample while bypassing the excitation monochromator. Excitation light generated by the light source is transmitted along either the first excitation light path or the second excitation light path in accordance with the selection made, thereby irradiating the sample. In response the sample produces emission light (transmitted light in the case of absorbance measurements), which is transmitted to and measured by a light detector.

    Method and apparatus for simultaneous spectroelectrochemical analysis
    6.
    发明授权
    Method and apparatus for simultaneous spectroelectrochemical analysis 有权
    同时进行光谱电化学分析的方法和装置

    公开(公告)号:US08585880B2

    公开(公告)日:2013-11-19

    申请号:US13246090

    申请日:2011-09-27

    Abstract: An apparatus and method of simultaneous spectroelectrochemical analysis is disclosed. A transparent surface is provided. An analyte solution on the transparent surface is contacted with a working electrode and at least one other electrode. Light from a light source is focused on either a surface of the working electrode or the analyte solution. The light reflected from either the surface of the working electrode or the analyte solution is detected. The potential of the working electrode is adjusted, and spectroscopic changes of the analyte solution that occur with changes in thermodynamic potentials are monitored.

    Abstract translation: 公开了同步光谱电化学分析的装置和方法。 提供透明表面。 透明表面上的分析物溶液与工作电极和至少一个其他电极接触。 来自光源的光聚焦在工作电极或分析物溶液的表面上。 检测从工作电极的表面或分析物溶液反射的光。 调整工作电极的电位,并监测随着热力学势的变化而发生的分析物溶液的光谱变化。

    SWIR targeted agile raman (STAR) system for on-the-move detection of emplace explosives
    7.
    发明授权
    SWIR targeted agile raman (STAR) system for on-the-move detection of emplace explosives 有权
    SWIR针对敏捷拉曼(S​​TAR)系统进行爆炸物的移动检测

    公开(公告)号:US08379193B2

    公开(公告)日:2013-02-19

    申请号:US12802994

    申请日:2010-06-17

    Abstract: The present disclosure provides for a system and method for detecting explosives and other materials in a sample scene. First interacted photons are produced from a target area wherein the first interacted photons are generated via solar radiation. The first interacted photons are assessed to thereby generate a SWIR hyperspectral image. The SWIR hyperspectral image is analyzed to identify an area of interest likely of comprising an explosive material. The area of interest is illuminated using laser light illumination to generate second interacted photons from the area of interest. These second interacted photons are assessed to determine whether it not an explosive material is present in the area of interest. The system and method may be configured in standoff, OTM, static and UGV configurations.

    Abstract translation: 本公开提供了用于在样本场景中检测爆炸物和其他材料的系统和方法。 从目标区域产生第一相互作用的光子,其中通过太阳辐射产生第一相互作用的光子。 评估第一相互作用的光子,从而产生SWIR高光谱图像。 分析SWIR高光谱图像以识别可能包含爆炸物质的感兴趣区域。 使用激光照明来照亮感兴趣区域,以从感兴趣区域产生第二相互作用的光子。 评估这些第二个相互作用的光子,以确定在感兴趣区域中是否存在爆炸物质。 系统和方法可以配置为隔离,OTM,静态和UGV配置。

    Optical end-point type analytical method
    10.
    发明授权
    Optical end-point type analytical method 失效
    光端点型分析方法

    公开(公告)号:US5047351A

    公开(公告)日:1991-09-10

    申请号:US351315

    申请日:1989-05-10

    Abstract: A method for shortening the analysis time, without adversely affecting the accuracy in the colorimetric analysis of an analyte. The method including the steps of:(a) Measuring the optical density for two or more times at suitable time intervals after the beginning of reaction to follow the variation of optical density,(b) Judging based upon the optical density obtained at the earlier measurement whether the reaction is to be further continued or not,(c) When it is judged that the continuation of the reaction is not necessary in terms of analytical accuracy, selecting the calibration curve corresponding to the reaction time,(d) While, when it is judged that the continuation of the reaction is necessary, further continuing the reaction, and(e) Repeating steps (b) and (d) until the judgement that the continuation of the reaction is not necessary is obtained.

    Abstract translation: 用于缩短分析时间的方法,而不会不利地影响分析物的比色分析的准确性。 该方法包括以下步骤:(a)在反应开始后以合适的时间间隔测量光密度两次或更多次,以遵循光密度的变化,(b)基于在较早测量时获得的光密度 反应是否进一步持续,(c)当判断在分析精度方面不需要继续反应时,选择与反应时间对应的校准曲线,(d)当 判断反应的持续是必要的,进一步继续反应,(e)重复步骤(b)和(d),直到判断出不需要反应的延续为止。

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