Portable system for detecting hazardous agents using SWIR and method for use thereof
    281.
    发明申请
    Portable system for detecting hazardous agents using SWIR and method for use thereof 审中-公开
    使用SWIR检测危险品的便携式系统及其使用方法

    公开(公告)号:US20120154792A1

    公开(公告)日:2012-06-21

    申请号:US13068542

    申请日:2011-05-12

    Abstract: The disclosure provides for a portable device for detecting hazardous agents, including explosives using SWIR hyperspectral imaging. The device may comprise a collection optics, a SWIR multi-conjugate filter, a SWIR camera, and a display. The device may also comprise an RGB camera. The disclosure also provides for a method of using said portable device wherein interacted photons are collected and passed through a SWIR multi-conjugate filter. The interacted photons are detected to generate at least one SWIR hyperspectral image. The SWIR hyperspectral image may be analyzed to determine the presence or absence of a hazardous agent on a target. An RGB image of a target may also be generated and analyzed to survey a sample scene.

    Abstract translation: 本公开提供了用于检测危险剂的便携式装置,包括使用SWIR高光谱成像的爆炸物。 该装置可以包括收集光学器件,SWIR多共轭滤光器,SWIR相机和显示器。 该设备还可以包括RGB相机。 本公开还提供了使用所述便携式设备的方法,其中相互作用的光子被收集并通过SWIR多重共轭滤波器。 检测相互作用的光子以产生至少一个SWIR高光谱图像。 可以分析SWIR高光谱图像以确定目标上是否存在危险剂。 还可以生成和分析目标的RGB图像以对样本场景进行调查。

    Sample container and system for a handheld spectrometer and method for using therefor
    285.
    发明授权
    Sample container and system for a handheld spectrometer and method for using therefor 有权
    用于手持光谱仪的样品容器和系统及其使用方法

    公开(公告)号:US07542138B2

    公开(公告)日:2009-06-02

    申请号:US11902613

    申请日:2007-09-24

    Abstract: A container for holding a sample and a system and method for a handheld spectrometer using the container is disclosed. In one embodiment, the container includes a vial with an optical window at the base of the vial. A sample may be placed in the vial. A hollow plunger may be slidably inserted into the vial which seals the gap between the plunger and the walls of the vial. The plunger includes a filter element. When the plunger is inserted into the vial, the sample is forced against the optical window and the filter element vents liquid and/or gas that is in the vial into the hollow plunger. A portable or handheld system for detecting, for example, biothreat agents makes use of the container in order to determine a spectrum of the sample. The optical window of the container is preferably substantially transparent to photons illuminating the sample and to photons produced due to the interaction of the illuminating photons and the sample.

    Abstract translation: 公开了一种用于保持样品的容器和使用该容器的手持式光谱仪的系统和方法。 在一个实施例中,容器包括在小瓶底部具有光学窗口的小瓶。 样品可以放在小瓶中。 中空柱塞可以可滑动地插入小瓶中,其密封柱塞和小瓶的壁之间的间隙。 柱塞包括过滤元件。 当柱塞插入小瓶中时,样品被迫靠在光学窗口上,过滤元件将液体和/或气瓶中的液体和/或气体排入空心柱塞。 用于检测例如生物降解剂的便携式或手持式系统利用容器来确定样品的光谱。 容器的光学窗口优选对照射样品的光子和由于照射光子和样品的相互作用而产生的光子基本上是透明的。

    Hand-Held, Self-Contained Optical Emission Spectroscopy (OES) Analyzer
    288.
    发明申请
    Hand-Held, Self-Contained Optical Emission Spectroscopy (OES) Analyzer 有权
    手持式自含光发射光谱(OES)分析仪

    公开(公告)号:US20080212074A1

    公开(公告)日:2008-09-04

    申请号:US12036039

    申请日:2008-02-22

    Abstract: A hand-held, self-contained, battery-powered test instrument for analyzing composition of a sample includes an exciter for exciting at least a portion of the sample, a compact cross-dispersed spectrometer for receiving an optical signal from the excited portion of the sample and a processor for processing spectral data about the optical signal from the spectrometer. The exciter may include a spark generator and a counter electrode, a laser or other device for generating the optical signal from the sample portion. The spectrometer has a wavelength range broad enough to enable the test instrument to detect and determine relative quantities of carbon, phosphorous, sulfur, manganese, silicon, iron and other elements necessary to identify common alloys. The spectrometer includes a structural member made of a light-weight material having a small coefficient of thermal expansion (CTE). The spectrometer is dimensionally stable over a range of expected ambient temperatures, without controlling the temperature of the spectrometer.

    Abstract translation: 用于分析样品组成的手持式独立的,电池供电的测试仪器包括用于激发至少一部分样品的激发器,用于从所述样品的激发部分接收光信号的紧凑型交叉分散光谱仪 样品和用于处理来自光谱仪的光信号的光谱数据的处理器。 励磁机可以包括火花发生器和对电极,用于从样品部分产生光信号的激光器或其它装置。 光谱仪具有足够宽的波长范围,使得测试仪器可以检测和确定识别普通合金所需的碳,磷,硫,锰,硅,铁和其他元素的相对数量。 光谱仪包括由具有小的热膨胀系数(CTE)的轻质材料制成的结构件。 光谱仪在一定范围的预期环境温度下尺寸稳定,而不需要控制光谱仪的温度。

    Scanning double-beam interferometer
    290.
    发明授权
    Scanning double-beam interferometer 失效
    扫描双光束干涉仪

    公开(公告)号:US07342664B1

    公开(公告)日:2008-03-11

    申请号:US11124422

    申请日:2005-05-06

    CPC classification number: G01J3/06 G01J3/02 G01J3/0272 G01J3/0283 G01J3/4535

    Abstract: Scanning interferometer and method of using same providing for rapid, reliable detection of chemical compounds that are readily implemented in low-cost, portable configurations for application in a variety of monitoring and detection applications. A scanning double-beam interferometer, particularly a Michelson interferometer, in which the length of at least one of the optical paths (or arms) of the interferometer is selectively adjustable by use of an actuator in which rotational displacement of a rotatable element is converted into linear displacement of at least one reflective surface which forms an end of an optical path of the interferometer is employed to obtain interferograms of electromagnetic radiation attenuated, emitted, scattered or reflected from a sample. The length of the optical path that is adjusted is determined using an optical detection scheme, particularly where marking on the rotatable element are detected to determine linear displacement of the reflective surface.

    Abstract translation: 扫描干涉仪及其使用方法可以快速,可靠地检测易于实现的低成本,便携式配置的化合物,用于各种监测和检测应用。 一种扫描双光束干涉仪,特别是迈克尔逊干涉仪,其中干涉仪的至少一个光路(或臂)的长度可通过使用可旋转元件的旋转位移转换成的致动器来选择性地调节 使用形成干涉仪的光路的端部的至少一个反射表面的线性位移来获得从样品衰减,发射,散射或反射的电磁辐射的干涉图。 使用光学检测方案来确定调整的光路的长度,特别是在检测可旋转元件上的标记以确定反射表面的线性位移的情况下。

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