Measuring Minority Carrier Lifetime
    1.
    发明申请
    Measuring Minority Carrier Lifetime 审中-公开
    衡量少数载体寿命

    公开(公告)号:US20120081132A1

    公开(公告)日:2012-04-05

    申请号:US13080451

    申请日:2011-04-05

    IPC分类号: G01R27/28 H01F17/06

    摘要: An apparatus includes a member including a ferromagnetic material, an inductance-capacitance resonant circuit, a substrate disposed relative to the member, and a plurality of radiation sources. The member includes a post disposed at its center and a surface extending to an outer wall. The member defines a gap between the post and the outer wall. The inductance-capacitance resonant circuit is configured to resonate at a measurement frequency. The circuit includes an inductor disposed relative to the post. The substrate is disposed relative to the member. The substrate is electromagnetically coupled to the inductor. The plurality of radiation sources is disposed radially outward from and circumferentially around the post of the member. The apparatus can be used to simultaneously measure conductance (inverse sheet resistance), steady state photoconductance, true steady state minority carrier lifetime, photoconductance build-up and photoconductance decay lifetime.

    摘要翻译: 一种装置包括包括铁磁材料,电感 - 电容谐振电路,相对于该构件设置的衬底和多个辐射源的构件。 该构件包括设置在其中心处的柱和延伸到外壁的表面。 构件限定了柱和外壁之间的间隙。 电感 - 电容谐振电路被配置为以测量频率谐振。 电路包括相对于柱设置的电感器。 衬底相对于构件设置。 衬底电感耦合到电感器。 多个辐射源从构件的柱体周向地周向地设置。 该装置可以同时测量电导(反薄片电阻),稳态光电导,真实的稳态少数载流子寿命,光电导积累和光电导衰减寿命。

    CRITICAL ANGLE OPTICAL SENSOR APPARATUS
    3.
    发明申请
    CRITICAL ANGLE OPTICAL SENSOR APPARATUS 有权
    关键角度光学传感器装置

    公开(公告)号:US20130214138A1

    公开(公告)日:2013-08-22

    申请号:US13401765

    申请日:2012-02-21

    IPC分类号: G01J1/04 G01J1/42

    摘要: An optical sensor apparatus includes an optically transmissive structure having planar first, second, and third faces, two or more light sources located outside the structure adjacent the first face, and a photodetector array located outside the prism adjacent the first face. The structure, light sources, and photodetector array are configured such that light from the light sources that is totally internally reflected at an optical interface between the prism and a sample outside the structure proximate the second face is reflected at the third face and incident on a portion of the photodetector array that depends on a refractive index of the sample. The light sources are positioned with respect to the structure and photodetector array such that the totally internally reflected light from each light source corresponds to a different range of refractive index of the sample and maps to a corresponding portion of the photodetector array.

    摘要翻译: 一种光学传感器装置包括具有平面的第一,第二和第三面的光学透射结构,位于与第一面相邻的结构外的两个或更多个光源,以及位于邻近第一面的棱镜外部的光电检测器阵列。 结构,光源和光电检测器阵列被配置为使得来自光源的光在棱镜和靠近第二面的结构外部的光学界面处被内部反射的光在第三面处被反射并且入射到 光电检测器阵列的部分取决于样品的折射率。 光源相对于结构和光电检测器阵列定位,使得来自每个光源的全内部反射光对应于样品的不同折射率范围并且映射到光电检测器阵列的相应部分。

    Metal ion concentration analysis for liquids
    4.
    发明申请
    Metal ion concentration analysis for liquids 有权
    液体金属离子浓度分析

    公开(公告)号:US20060158653A1

    公开(公告)日:2006-07-20

    申请号:US11036962

    申请日:2005-01-14

    IPC分类号: G01N21/55

    摘要: An apparatus utilizes miniaturized surface plasmon resonance (SPR) and ion-selective self-assembled monolayer (SAM) and hydrogel chemistry to measure metal ion concentrations in liquids. The SPR optical system is packaged in a compact and cost-effective form factor. An electronic circuit drives the optical system. The SPR system utilizes an optical window that is coated with the SAM layer or hydrogel material. The SAM layer and hydrogel materials are highly selective to a specific metal ion of interest. The miniaturized SPR sensor is situated in an optical-fluidic cell or an optical-fluidic manifold with the SAM layer or hydrogel material in contact with the liquid. Metal ions selectively attach to the SAM layer or hydrogel material, thereby affecting the SPR signal. Changes in the SPR signal are used to accurately determine the metal ion concentration in the liquid. The liquids may be either static or dynamic.

    摘要翻译: 使用小型化表面等离子体共振(SPR)和离子选择性自组装单层(SAM)和水凝胶化学来测量液体中的金属离子浓度的装置。 SPR光学系统采用紧凑且具有成本效益的外形尺寸封装。 电子电路驱动光学系统。 SPR系统使用涂有SAM层或水凝胶材料的光学窗口。 SAM层和水凝胶材料对感兴趣的特定金属离子具有高选择性。 小型化SPR传感器位于具有SAM层或水凝胶材料与液体接触的光学流体池或光学流体歧管中。 金属离子选择性地附着到SAM层或水凝胶材料上,从而影响SPR信号。 SPR信号的变化用于准确测定液体中的金属离子浓度。 液体可以是静态或动态的。

    METHOD FOR A LIQUID CHEMICAL CONCENTRATION ANALYSIS SYSTEM
    5.
    发明申请
    METHOD FOR A LIQUID CHEMICAL CONCENTRATION ANALYSIS SYSTEM 有权
    液体化学浓度分析系统的方法

    公开(公告)号:US20080001105A1

    公开(公告)日:2008-01-03

    申请号:US11852880

    申请日:2007-09-10

    IPC分类号: G01N21/00

    摘要: An apparatus utilizes optical reflectivity (REF) to measure concentrations in liquids. The REF optical system is packaged in a compact and cost-effective form factor. An electronic circuit drives the optical system. The miniaturized REF sensor is situated in an optical-fluidic cell or an optical-fluidic manifold with an optical window in contact with the liquid. Changes in a total internal reflection (TIR) signal are sensitive to temperature and concentration of the liquid. These changes in the TIR signal are used to accurately determine the concentration in the liquid. The liquids may be either static or dynamic.

    摘要翻译: 一种装置利用光学反射率(REF)来测量液体中的浓度。 REF光学系统采用紧凑且经济高效的外形尺寸封装。 电子电路驱动光学系统。 小型化的REF传感器位于具有与液体接触的光学窗口的光学流体池或光学流体歧管中。 全内反射(TIR)信号的变化对液体的温度和浓度敏感。 TIR信号中的这些变化用于准确地确定液体中的浓度。 液体可以是静态或动态的。

    Method and apparatus for a liquid chemical concentration analysis system
    6.
    发明申请
    Method and apparatus for a liquid chemical concentration analysis system 有权
    液体化学浓度分析系统的方法和装置

    公开(公告)号:US20070070330A1

    公开(公告)日:2007-03-29

    申请号:US11235622

    申请日:2005-09-26

    IPC分类号: G01N21/41

    摘要: An apparatus utilizes optical reflectivity (REF) to measure concentrations in liquids. The REF optical system is packaged in a compact and cost-effective form factor. An electronic circuit drives the optical system. The miniaturized REF sensor is situated in an optical-fluidic cell or an optical-fluidic manifold with an optical window in contact with the liquid. Changes in a total internal reflection (TIR) signal are sensitive to temperature and concentration of the liquid. These changes in the TIR signal are used to accurately determine the concentration in the liquid. The liquids may be either static or dynamic.

    摘要翻译: 一种装置利用光学反射率(REF)来测量液体中的浓度。 REF光学系统采用紧凑且经济高效的外形尺寸封装。 电子电路驱动光学系统。 小型化的REF传感器位于具有与液体接触的光学窗口的光学流体池或光学流体歧管中。 全内反射(TIR)信号的变化对液体的温度和浓度敏感。 TIR信号中的这些变化用于准确地确定液体中的浓度。 液体可以是静态或动态的。

    Optical sensor apparatus to detect light based on the refractive index of a sample
    7.
    发明授权
    Optical sensor apparatus to detect light based on the refractive index of a sample 有权
    基于样品的折射率检测光的光学传感器装置

    公开(公告)号:US09024252B2

    公开(公告)日:2015-05-05

    申请号:US13401765

    申请日:2012-02-21

    IPC分类号: H01J5/02 G01N21/43

    摘要: An optical sensor apparatus includes an optically transmissive structure having planar first, second, and third faces, two or more light sources located outside the structure adjacent the first face, and a photodetector array located outside the prism adjacent the first face. The structure, light sources, and photodetector array are configured such that light from the light sources that is totally internally reflected at an optical interface between the prism and a sample outside the structure proximate the second face is reflected at the third face and incident on a portion of the photodetector array that depends on a refractive index of the sample. The light sources are positioned with respect to the structure and photodetector array such that the totally internally reflected light from each light source corresponds to a different range of refractive index of the sample and maps to a corresponding portion of the photodetector array.

    摘要翻译: 一种光学传感器装置包括具有平面的第一,第二和第三面的光学透射结构,位于与第一面相邻的结构外的两个或更多个光源,以及位于邻近第一面的棱镜外部的光电检测器阵列。 结构,光源和光电检测器阵列被配置为使得来自光源的光在棱镜和靠近第二面的结构外部的光学界面处被内部反射的光在第三面处被反射并且入射到 光电检测器阵列的部分取决于样品的折射率。 光源相对于结构和光电检测器阵列定位,使得来自每个光源的全内部反射光对应于样品的不同折射率范围并且映射到光电检测器阵列的相应部分。

    Method for a liquid chemical concentration analysis system

    公开(公告)号:US20070070332A1

    公开(公告)日:2007-03-29

    申请号:US11491110

    申请日:2006-07-21

    IPC分类号: G01N21/41

    摘要: An apparatus utilizes optical reflectivity (REF) to measure concentrations in liquids. The REF optical system is packaged in a compact and cost-effective form factor. An electronic circuit drives the optical system. The miniaturized REF sensor is situated in an optical-fluidic cell or an optical-fluidic manifold with an optical window in contact with the liquid. Changes in a total internal reflection (TIR) signal are sensitive to temperature and concentration of the liquid. These changes in the TIR signal are used to accurately determine the concentration in the liquid. The liquids may be either static or dynamic.