Thermo-electrically cooled surface-enhanced raman spectroscopy sensor system to detect volatile organic compounds
    112.
    发明授权
    Thermo-electrically cooled surface-enhanced raman spectroscopy sensor system to detect volatile organic compounds 失效
    热电冷却表面增强拉曼光谱传感器系统来检测挥发性有机化合物

    公开(公告)号:US06947132B1

    公开(公告)日:2005-09-20

    申请号:US10413188

    申请日:2003-04-14

    CPC classification number: G01N21/658 G01J3/0286 G01J3/44 G01N2201/1211

    Abstract: A thermoelectrically cooled surface-enhanced Raman spectrometer sensor system and method for monitoring of volatile organic compounds in gas, liquid, and soil environments. The sensor system comprises a means for providing an inert gas, a thermal desorption tube containing an adsorbate, and a sample chamber with a SERS structure. For liquid and soil environments, the sensor system also comprises a manifold having a semipermeable membrane for separating moisture from an analyte. An optical module mounted to the sample chamber directs an optical excitation signal for irradiating the SERS structure and receives a SERS optical emissions signal. Such optical emissions signal may be detected by a spectroanalysis system and correlated to a particular analyte by a control processor, which generates an alert signal containing a message that the presence of analyte has been detected. The control processor may also activate warning device, such as an audible siren or a visual alarm.

    Abstract translation: 一种用于监测气体,液体和土壤环境中挥发性有机化合物的热电冷却表面增强拉曼光谱仪传感器系统和方法。 传感器系统包括用于提供惰性气体的装置,含有被吸附物的热解吸管和具有SERS结构的样品室。 对于液体和土壤环境,传感器系统还包括具有用于将水分与分析物分离的半透膜的歧管。 安装到样品室的光学模块引导光激发信号以照射SERS结构并接收SERS光发射信号。 这种光发射信号可以由光谱分析系统检测,并通过控制处理器与特定分析物相关联,控制处理器产生包含已经检测到分析物的存在的消息的警报信号。 控制处理器还可以激活警报装置,例如可听见的警报或视觉警报。

    Processing system for remote chemical identification
    113.
    发明申请
    Processing system for remote chemical identification 审中-公开
    远程化学鉴定处理系统

    公开(公告)号:US20050154539A1

    公开(公告)日:2005-07-14

    申请号:US11076636

    申请日:2005-03-10

    Abstract: A fourth embodiment of the present invention is a method of generating a temperature compensated absorbance spectrum. The method includes the steps of: a. providing a sample spectrum and an estimated temperature of a backdrop object; b. from a set of known temperature spectra related to a known background temperature, selecting at least two known temperature spectra representing a background temperature above and below the estimated temperature; c. comparing the sample spectrum to the known temperature spectra in order to determine a sample background spectrum; and d. calculating an absorbance spectrum from the sample spectrum and the background spectrum.

    Abstract translation: 本发明的第四实施例是产生温度补偿吸收光谱的方法。 该方法包括以下步骤:a。 提供样本谱和背景物体的估计温度; b。 从与已知背景温度相关的一组已知温度谱中,选择表示背景温度高于和低于估计温度的至少两个已知温度光谱; C。 将样品光谱与已知的温度光谱进行比较,以确定样品背景光谱; 和d。 从样品光谱和背景光谱计算吸收光谱。

    Test element analysis system
    116.
    发明授权
    Test element analysis system 有权
    测试元素分析系统

    公开(公告)号:US06880968B1

    公开(公告)日:2005-04-19

    申请号:US10111626

    申请日:2000-10-26

    Inventor: Hans-Peter Haar

    CPC classification number: G01N21/8483 G01N33/48785 G01N2201/1211

    Abstract: Test element analysis system (1) for the analytical investigation of a sample (8), in particular of a body liquid, of human beings or of animals, comprising test elements (3) with a test zone (7), to be brought in contact with the sample to be investigated for the purpose of performing an analysis, in order to measure a measurement quantity characteristic for the analysis, and an evaluation instrument (2) with a test element holder (5) for positioning a test element (3) in a measuring position in order to perform a measurement, and a measurement and evaluation electronics (15) for measuring the characteristic change and for determining a result of the analysis, based on the result of the measurement.In order to provide increased measuring accuracy by improved temperature compensation, it is proposed, in the scope of the invention, that the evaluation instrument (2) for the determination of the temperature prevailing in the test zone (7) of the test element (3) comprises an infrared detector (20).

    Abstract translation: 用于对包含具有测试区(7)的测试元件(3))的人或动物样品(8),特别是人体液体的分析调查的测试元素分析系统(1) 为了测量分析用的测量量特性,以及具有用于定位测试元件(3)的测试元件保持器(5)的评估仪器(2)与待研究的样品接触以进行分析, 在测量的位置,以及用于测量特性变化和用于确定分析结果的测量和评估电子(15),基于测量结果。 为了通过改善的温度补偿来提供更高的测量精度,在本发明的范围内,提出了用于确定测试元件(3)的测试区域(7)中的温度的评估仪器(2) )包括红外检测器(20)。

    Measuring apparatus
    118.
    发明授权
    Measuring apparatus 失效
    测量装置

    公开(公告)号:US5231576A

    公开(公告)日:1993-07-27

    申请号:US578577

    申请日:1990-09-07

    CPC classification number: G01N21/8483 G01N21/272 G01N21/78 G01N2201/1211

    Abstract: The present invention is an apparatus for measuring the constituent concentration of a specimen on the basis of the color change in a test material housed in a test piece, which has reacted because of the specimen. The apparatus irradiates the test material which is a test piece loaded in the apparatus's main body and detects the intensity of the light reflected by the test material. A detection signal detected in the above way is sampled in a time period before and after the measurement timing at which the test material changes in color because of the specimen. An average value of the sampled detection signals is determined. The constituent concentration of the specimen is computed by referring to a stored conversion table on the basis of the average value determined in the above way.

    Desk top type infrared radiation moisture measuring apparatus
    119.
    发明授权
    Desk top type infrared radiation moisture measuring apparatus 失效
    台式红外辐射测湿仪

    公开(公告)号:US5017787A

    公开(公告)日:1991-05-21

    申请号:US429583

    申请日:1989-10-31

    Abstract: A desk-top type infrared radiation moisture measuring apparatus is of a type in which the moisture in a specimen is exposed to a measurement light easily absorbed into water and to at least one reference light not noticeably absorbed into water and calculation is performed to determine the moisture in the specimen on the basis of both the measurement light and the reference light, reflected from the specimen. The apparatus comprises a turntable on which the specimen is placed and which is exposed to both the measurement light and the reference light from above at a portion away from the center thereof, and a drive source for driving the turntable into rotation. The measurement is carried out while the turntable is being rotated.

    Abstract translation: 台式红外线辐射水分测量装置是将样品中的水分暴露于容易吸收到水中的测量光和至少一个不明显地吸收到水中的参考光,并进行计算以确定 基于从样本反射的测量光和参考光的样本中的水分。 所述装置包括转台,所述转台在所述转台上放置所述样本并且在远离其中心的部分处从所述测量光和参考光暴露于所述参考光;以及用于驱动所述转台旋转的驱动源。 在转盘旋转时进行测量。

    Temperature-compensated apparatus and method for determining pulp stock
consistency
    120.
    发明授权
    Temperature-compensated apparatus and method for determining pulp stock consistency 失效
    温度补偿装置和确定纸浆原料一致性的方法

    公开(公告)号:US4838692A

    公开(公告)日:1989-06-13

    申请号:US147263

    申请日:1988-01-22

    Abstract: A temperature-compensated apparatus and method for determining the percentage of solid particles in a suspension (consistency) is provided. A source of diffused radiant energy is directed toward a suspension to be measured. The portion of the energy which is forward-scattered by the suspension is detected and a first signal indicative of the magnitude of the forward-scattered energy is produced. The portion of energy which is back-scattered by the suspension is detected and a second signal indicative of the magnitude of back-scattered energy is produced. The first and second signals are combined at a predetermined ratio to produce a feedback signal used to control the intensity of energy emitted from the radiant energy source. The intensity of energy emitted from the source is a function of the forward-scattered and back-scattered energy and is directly proportional to the consistency of the suspension being measured. By monitoring the power driving the radiant energy source, a display calibrated in terms of percent consistency can be provided. The apparatus includes temperature compensation so that the temperature of the suspension will not produce erroneous readings in the energy detectors. Likewise, variations in ambient temperature will not adversely affect the operation of the energy detectors.

    Abstract translation: 提供了用于确定悬浮液中的固体颗粒百分比的温度补偿装置和方法(一致性)。 漫射辐射能的来源指向要测量的悬架。 检测由悬架前向散射的能量的部分,并且产生指示前向散射能量的大小的第一信号。 检测由悬架反向散射的能量部分,并且产生指示反向散射能量的大小的第二信号。 第一和第二信号以预定比率组合以产生用于控制从辐射能源发射的能量的强度的反馈信号。 从源发射的能量的强度是前向散射和反向散射能量的函数,并且与所测量的悬架的一致性成正比。 通过监测驱动辐射能源的功率,可以提供以百分比一致性校准的显示器。 该装置包括温度补偿,使得悬架的温度不会在能量检测器中产生错误的读数。 同样,环境温度的变化也不会对能量检测器的操作产生不利影响。

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