Analytical equipment enclosure incorporating phase changing materials
    71.
    发明授权
    Analytical equipment enclosure incorporating phase changing materials 有权
    分析设备包含相变材料

    公开(公告)号:US08154728B2

    公开(公告)日:2012-04-10

    申请号:US12347368

    申请日:2008-12-31

    CPC classification number: G01N21/39 G01N2201/022 G01N2201/023 G01N2201/0231

    Abstract: Thermally controlled enclosures that can be used with gas analyzers are described. The enclosures incorporate one or more phase changing materials that buffer ambient and internal heat loads to reduce the power consumption demand of mechanical or electronic heating apparatus. Maintenance of gas analyzer equipment at a consistent temperature can be important to achieving stable and reproducible results. Related systems, apparatus, methods, and/or articles are also described.

    Abstract translation: 描述了可用于气体分析仪的热控制外壳。 外壳采用缓冲环境和内部热负荷的一种或多种相变材料,以减少机械或电子加热设备的功耗需求。 在一致的温度下维护气体分析仪设备对于获得稳定和可重现的结果是重要的。 还描述了相关系统,装置,方法和/或制品。

    Inspection apparatus and inspection method
    73.
    发明申请
    Inspection apparatus and inspection method 有权
    检验仪器和检验方法

    公开(公告)号:US20090262339A1

    公开(公告)日:2009-10-22

    申请号:US11989018

    申请日:2007-06-29

    Abstract: A defect inspection apparatus enable to efficiently perform a temperature control without involving an enlarged size can be achieved.The parts constituting the defect inspection apparatus are classified into parts need temperature control and parts not to need temperature control; all the parts need temperature control are accommodated together into a temperature-controlled part accommodating section 604, and the parts not to need temperature control are arranged in a heat radiating unit 605. The temperature in the temperature-controlled part accommodating section 604 is measured by a temperature measuring instrument 603 and a control CPU 602 in a temperature control unit 601 carries out control according to the measured temperature so that the interior of the temperature-controlled part accommodating section 604 is kept at a fixed temperature. Therefore, it becomes easy to keep the fixed temperature, when compared with a case in which individual parts are temperature-controlled separately by being heated or cooled, yielding an energy saving effect.

    Abstract translation: 可以实现能够有效地执行不涉及放大尺寸的温度控制的缺陷检查装置。 构成缺陷检查装置的部件分为需要温度控制的部件和不需要温度控制的部件; 将所有需要温度控制的部件一起放入温度控制部件容纳部分604中,并且不需要温度控制的部件被布置在散热单元605中。温度控制部件容纳部分604中的温度由 温度控制单元601中的温度测量装置603和控制CPU 602根据测量的温度执行控制,使得温度控制部分容纳部分604的内部保持在固定温度。 因此,与单独部件通过加热或冷却分别进行温度控制的情况相比,容易保持固定温度,产生节能效果。

    Thermo-electrically cooled surface enhanced Raman spectroscopy sensor system
    75.
    发明授权
    Thermo-electrically cooled surface enhanced Raman spectroscopy sensor system 有权
    热电冷表面增强拉曼光谱传感器系统

    公开(公告)号:US07116416B1

    公开(公告)日:2006-10-03

    申请号:US11136765

    申请日:2005-05-24

    CPC classification number: G01N21/658 B82Y15/00 B82Y30/00 G01N2201/0231

    Abstract: A sensor system employs a thermo-electrically cooled surface enhanced Raman (SERS) structure that is positioned in a sample chamber. Gas or vapor that may contain an analyte of interest is introduced into the sample chamber so that the analyte may come into contact with the SERS structure. The SERS structure may be cooled to facilitate condensation of selected analytes onto the SERS structure. When in contact with each other, the analyte and SERS structure may be optically stimulated by an optical excitation signal to produce a unique spectral response that may be detected by a spectroanalysis system. The spectral response then may be correlated to a specific analyte, i.e., identified.

    Abstract translation: 传感器系统采用位于样品室中的热电冷却表面增强拉曼(SERS)结构。 将可能含有感兴趣分析物的气体或蒸汽引入样品室,使得分析物可能与SERS结构接触。 可以冷却SERS结构以便于选择的分析物冷凝到SERS结构上。 当彼此接触时,分析物和SERS结构可以被光学激发信号光学刺激,以产生可由光谱分析系统检测的独特光谱响应。 然后光谱响应可以与特定分析物相关,即识别。

    Optical pH and gas concentration sensor
    77.
    发明授权
    Optical pH and gas concentration sensor 失效
    光学pH和气体浓度传感器

    公开(公告)号:US5039492A

    公开(公告)日:1991-08-13

    申请号:US303584

    申请日:1989-01-27

    Abstract: An optical pH sensor and a gas sensor utilizing the pH sensor. The pH sensor includes an indicator whose absorbance is a function of the concentration of hydronium ions in a media surrounding the indicator. Light transmitted and reflected through the indicator of the sensor undergoes an absorption that is characteristic of the concentration of the hydrogen ion. The pH sensor can be used as to sense the concenration of a gas in a sample by surrounding the indicator with a liquid or liquid-containing media that changes pH as it is exposed to the gas, and separating the indicator and liquid or liquid-containing media from the gas with a membrane that is permeable to the gas to be measured. A measuring system used with the sensors transmits coherent radiation to the sensor through an optical fiber, separates the radiation returning from the sample into two wavelength bands, and digitally samples the photocurrents produced within the two wavelength bands. A microprocessor performs ratiometric calculations to measure the pH or gas concentration.

    Abstract translation: 光学pH传感器和利用pH传感器的气体传感器。 pH传感器包括指示剂,其吸光度是指示剂周围的介质中水合氢离子的浓度的函数。 通过传感器的指示器透射和反射的光经受吸收,其是氢离子浓度的特征。 pH传感器可以用于通过用液体或液体介质围绕指示剂来感测样品中气体的浓缩,所述液体或液体介质在暴露于气体时改变pH,并分离指示剂和液体或液体 来自具有可测量气体的膜的气体的介质。 与传感器一起使用的测量系统通过光纤将相干辐射传输到传感器,将从样品返回的辐射分离成两个波长带,并对在两个波长带内产生的光电流进行数字采样。 微处理器执行比例计算来测量pH或气体浓度。

    Method and apparatus for reducing Schlieren noise in a liquid
chromatograph
    78.
    发明授权
    Method and apparatus for reducing Schlieren noise in a liquid chromatograph 失效
    用于降低液相色谱仪中Schlieren噪声的方法和装置

    公开(公告)号:US4659934A

    公开(公告)日:1987-04-21

    申请号:US617700

    申请日:1984-06-06

    Abstract: A beam of light falling within the range of 180 to 3,000 nanometers is transmitted through a flow cell in an optical compartment of an absorbance detector after warm up of the equipment while the eluant flows through the flow cell from a chromatographic column. The column extends upwardly from the absorbance detector into an air chamber having a volume of approximately 0.25 cubic foot formed with acrylic walls. Air flows from the absorbance detector under the power of a fan at approximately 10 cubic feet per minute upwardly through an air duct having a cross section of approximately 1.5 square inches to the top where it connects with the air chamber, the speed of the motor being adjustable until temperature varies less than one degree Celsius between the flow cell and the lower 10 centimeters of the column. Under these conditions Schlieren noise from the flow cell due to flow-induced thermo-optical effects is reduced.

    Abstract translation: 落入180-3000纳米范围内的光束在设备预热后通过吸光度检测器的光学隔室中的流动池传输,同时洗脱液从色谱柱流过流动池。 该柱从吸光度检测器向上延伸到由丙烯酸壁形成的体积为约0.25立方英尺的空气室中。 空气从风扇的功率以约10立方英尺/分钟的速度向上流过吸收检测器,通过横截面大约为1.5平方英寸的空气管道与顶部连通,其与电动机的速度为 可调节,直到流动池和塔的下10厘米之间的温度变化不到1摄氏度。 在这些条件下,由流动引起的热光效应引起的流动池中的Schlieren噪声降低。

    A GAS DETECTION SYSTEM AND METHOD
    79.
    发明申请

    公开(公告)号:WO2019073377A1

    公开(公告)日:2019-04-18

    申请号:PCT/IB2018/057808

    申请日:2018-10-09

    Applicant: CSIR

    Inventor: COX, Ettienne

    Abstract: This invention relates to a method of and system for facilitating detection of a particular predetermined gas in a scene (14) under observation. The gas in the scene is typically associated with a gas leak in equipment. To this end, the system comprises an infrared camera arrangement (12); a strobing illuminator device (22) having a strobing frequency matched to a frame rate of the camera; and a processing arrangement (24). The processing arrangement is configured to store a prior frame obtained via the infrared camera arrangement; and compare a current frame with the stored prior frame and generate an output signal in response to said comparison. The system also comprises a display device (26) configured to display an output image based at least on the output signal generated by the processing arrangement so as to facilitate detection of the particular predetermined gas, in use.

Patent Agency Ranking