Arsenic meter
    291.
    发明授权
    Arsenic meter 失效
    砷米

    公开(公告)号:US07336362B2

    公开(公告)日:2008-02-26

    申请号:US10523568

    申请日:2003-08-21

    Abstract: A field test-kit for analyzing arsenic concentration in water samples is provided. The kit includes a portable infrared beam photometer for measuring light absorbance in aqueous specimens. An infrared light emitting diode is configured to direct a beam of light through a specimen. A photodetector diode measures the intensity of light passing through the specimen. The photodetector output voltages relate to the light absorbed in the specimen and are displayed on a liquid crystal display screen. The kit is assembled using off-the-shelf electronic and opto-electronic components that have low power requirements. Dry cell batteries or solar cells power the kit. To test for arsenic, molybdenum based chemistries are used to selectively bind and convert arsenates and phosphates in the specimen into molybdenum-blue color complexes. The light absorbance of a specimen with both arsenates and phosphates bound in molybdenum-blue color complexes is compared to that of a reference specimen in which phosphates but not arsenates are bound and converted. The differential light absorbance of the two specimens is used to arrive at a quantitative value for the arsenic concentration in the water sample.

    Abstract translation: 提供了一种用于分析水样中砷浓度的现场测试工具。 该套件包括便携式红外光束光度计,用于测量水样中的吸光度。 红外发光二极管被配置为引导光束通过样本。 光检测器二极管测量通过样品的光的强度。 光检测器输出电压与样品中吸收的光有关,并显示在液晶显示屏上。 该套件使用具有低功耗要求的现成的电子和光电组件进行组装。 干电池或太阳能电池为套件供电。 为了测试砷,使用钼基化学物质选择性地将样品中的砷酸盐和磷酸盐结合并转化成钼蓝色复合物。 将与钼蓝色复合体中结合的砷酸盐和磷酸盐的样品的吸光度与其中磷酸盐而不是砷酸盐结合和转化的参考样品的吸光度进行比较。 使用两个样品的差分吸光度来获得水样中砷浓度的定量值。

    APPARATUS AND METHOD PROVIDING A HAND-HELD SPECTROMETER
    292.
    发明申请
    APPARATUS AND METHOD PROVIDING A HAND-HELD SPECTROMETER 审中-公开
    提供手持式光谱仪的装置和方法

    公开(公告)号:US20070194239A1

    公开(公告)日:2007-08-23

    申请号:US11669678

    申请日:2007-01-31

    Abstract: According to one aspect, an IR spectrometer includes a light source adapted to illuminate a sample, a grating adapted to spectrally disperse a light that has illuminated the sample, a MEMS array adapted to be electrostatically actuated by a controller to control a diffraction of the light, a detector configured to detect the light, and a power source adapted to supply power to the light source and to the MEMS array, wherein the controller is adapted to control the MEMS array so as to manage a power consumption of the IR spectrometer. In one embodiment, the IR spectrometer includes a housing sized and arranged to house the light source, the grating, the MEMS array, the controller, the detector, and the power source in a hand-held device.

    Abstract translation: 根据一个方面,一种IR光谱仪包括适于照射样品的光源,适于光谱分散已经照射样品的光的光栅;适于由控制器静电致动以控制光的衍射的MEMS阵列 ,被配置为检测光的检测器,以及适于向所述光源和所述MEMS阵列供电的电源,其中所述控制器适于控制所述MEMS阵列以便管理所述IR光谱仪的功率消耗。 在一个实施例中,IR光谱仪包括尺寸和布置成在手持式装置中容纳光源,光栅,MEMS阵列,控制器,检测器和电源的外壳。

    Method for remotely controlling a spectral measurement device utilizing predicted service life or a remotely provided software upgrade including color reference or shade guide data
    295.
    发明授权
    Method for remotely controlling a spectral measurement device utilizing predicted service life or a remotely provided software upgrade including color reference or shade guide data 失效
    利用预计使用寿命远程控制光谱测量装置的方法或包括彩色参考或阴影指导数据的远程提供的软件升级的方法

    公开(公告)号:US07069186B2

    公开(公告)日:2006-06-27

    申请号:US09872039

    申请日:2001-06-01

    Abstract: Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth being measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics to determine information regarding the height and angle of the probe with respect to the object/tooth being measured. Under processor control, the optical characteristics measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence, gloss and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe may have a removable or shielded tip for contamination prevention. A method of producing dental prostheses based on measured data also is disclosed. Measured data also may be stored and/or organized as part of a patient data base. Such methods and implements may be desirably utilized for purposes of detecting and preventing counterfeiting or the like.

    Abstract translation: 公开了用于确定牙齿的颜色或其他光学特性的光学特性测量系统和方法。 周边接收机光纤优选地与源光纤间隔开,并且从被测量的物体/齿的表面接收光。 来自周边光纤的光通过各种滤光片。 该系统利用周边接收器光纤来确定关于探头相对于被测量物体/齿的高度和角度的信息。 在处理器控制下,可以以预定的高度和角度进行光学特性测量。 公开了各种颜色光谱光度计布置。 也可以获得半透明度,荧光,光泽度和/或表面纹理数据。 可以提供音频反馈以指导操作者使用该系统。 探头可能具有可移除或屏蔽的尖端,以防止污染。 还公开了一种基于测量数据生产牙科假体的方法。 测量的数据也可以存储和/或组织为患者数据库的一部分。 为了检测和防止伪造等目的,可以期望地使用这些方法和装置。

    Hand-held spectrometer
    296.
    发明申请
    Hand-held spectrometer 有权
    手持光谱仪

    公开(公告)号:US20050229698A1

    公开(公告)日:2005-10-20

    申请号:US11103699

    申请日:2005-04-11

    Abstract: A hand-held portable modular spectrometer unit. The unit includes a detachable head containing a light source and optical components for detecting spectral information from light reflected from or transmitted through a target and a processor for converting the detected spectral information into digital information. The unit also includes a plug-in rechargeable power supply and a control module for controlling the components in the measurement head. The controller includes a computer processor for analyzing the digital information produced by the measurement head and a display monitor for displaying spectral information produced by the control unit. In preferred embodiments the plug-in rechargeable power supply is a 12-volt off-the-shelf power-tool rechargeable battery unit. In preferred embodiments several measuring heads are available. These include a gas cell measuring head, a surface reflectance measuring head that includes and integrating sphere, a specular reflectance measuring head, a grazing angle measuring head, an attenuated total reflectance measuring head, a diffuse reflection measuring head, a non-volatile residues measuring head, a liquid transmission cell measuring head and a fluorescence measuring head. Each of these measurement heads includes a spectrometer. Several types of spectrometers are available including those based on filters, prisms, gratings and interferometers. The unit can operate in a wide range of wavelengths including the infrared, visible and ultraviolet spectral ranges.

    Abstract translation: 手持便携式模块化光谱仪单元。 该单元包括一个包含光源的可拆卸头和用于从由目标反射或透过目标的光检测光谱信息的光学部件和用于将检测到的光谱信息转换为数字信息的处理器。 该装置还包括插入式可充电电源和用于控制测量头部件的控制模块。 控制器包括用于分析测量头产生的数字信息的计算机处理器和用于显示控制单元产生的频谱信息的显示监视器。 在优选实施例中,插入式可再充电电源是12伏现货电动工具可再充电电池单元。 在优选实施例中,可以使用多个测量头。 这些包括气体电池测量头,包括和积分球的表面反射测量头,镜面反射测量头,掠角测量头,衰减全反射测量头,漫反射测量头,非挥发性残留测量 头,液体传播细胞测量头和荧光测量头。 这些测量头中的每一个包括光谱仪。 可以使用几种类型的光谱仪,包括基于滤光片,棱镜,光栅和干涉仪的光谱仪。 该单元可以在宽范围的波长范围内工作,包括红外线,可见光谱和紫外光谱范围。

    SPECTROMETER ASSEMBLY
    300.
    发明申请
    SPECTROMETER ASSEMBLY 有权
    光谱仪组件

    公开(公告)号:US20010043330A1

    公开(公告)日:2001-11-22

    申请号:US09881371

    申请日:2001-06-13

    Abstract: Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth being measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics to determine information regarding the height and angle of the probe With respect to the object/tooth being measured. Under processor control, the optical characteristics measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence, gloss and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe may have a removable or shielded tip for contamination prevention. A method of producing dental prostheses based on measured data also is disclosed. Measured data also may be stored and/or organized as part of a patient data base. Such methods and implements may be desirably utilized for purposes of detecting and preventing counterfeiting or the like. Low cost and small form factor spectrometers, and methods for manufacturing the same, also are disclosed.

    Abstract translation: 公开了用于确定牙齿的颜色或其他光学特性的光学特性测量系统和方法。 周边接收机光纤优选地与源光纤间隔开,并且从被测量的物体/齿的表面接收光。 来自周边光纤的光线通过各种滤光片。 该系统利用周边接收器光纤来确定关于探头的高度和角度的信息相对于所测量的物体/齿。 在处理器控制下,可以以预定的高度和角度进行光学特性测量。 公开了各种颜色光谱光度计布置。 也可以获得半透明度,荧光,光泽度和/或表面纹理数据。 可以提供音频反馈以指导操作者使用该系统。 探头可能具有可移除或屏蔽的尖端,以防止污染。 还公开了一种基于测量数据生产牙科假体的方法。 测量的数据也可以存储和/或组织为患者数据库的一部分。 为了检测和防止伪造等目的,可以期望地使用这些方法和装置。 低成本和小尺寸光谱仪及其制造方法也被公开。

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