Method and apparatus for determining substances and/or the properties
thereof
    161.
    发明授权
    Method and apparatus for determining substances and/or the properties thereof 失效
    用于确定物质和/或其性质的方法和装置

    公开(公告)号:US5737076A

    公开(公告)日:1998-04-07

    申请号:US473743

    申请日:1995-06-07

    Abstract: The invention relates to a procedure for determining an identification of a sample of material, or its properties. Electromagnetic radiation from a radiation source (1) is reflected or transmitted through the sample. The radiation from the sample is collected and analyzed over several channels (7, 7', 7"), which modulate the radiation with a spectral transmission function which is unique for each channel. The modulated radiation is transmitted to one or several detectors (9, 9', 9") which produce output signals which are further electronically processed. The spectral range of each of the individual channels is common to all of the channels. Within the common range the channels are provided with different spectral transmission functions (7, 7',7") which are optimally chosen for a given application.

    Abstract translation: 本发明涉及用于确定材料样品或其性质的鉴定的程序。 来自辐射源(1)的电磁辐射被反射或透过样品。 来自样品的辐射在几个通道(7,7',7“)上进行收集和分析,该通道利用每个通道唯一的光谱传输函数调制辐射。 调制的辐射被传输到一个或多个检测器(9,9',9“),这些检测器产生进一步电子处理的输出信号。 每个通道的光谱范围对于所有通道是共同的。 在通用范围内,通道被提供有不同的光谱传输功能(7,7',7“),这些功能对于给定的应用是最佳选择的。

    Lamp quality judgement apparatus and judgement method therefor
    162.
    发明授权
    Lamp quality judgement apparatus and judgement method therefor 失效
    灯具质量判断装置及其判断方法

    公开(公告)号:US4759630A

    公开(公告)日:1988-07-26

    申请号:US891132

    申请日:1986-07-31

    CPC classification number: G01J3/2889 G01J3/457 G01N21/67 G01J3/433

    Abstract: The invention is a lamp quality judgement apparatus and judgement method which judge quality by detecting the state of gas sealed in an electric lamp such as a gas-filled incandescent lamp, etc. in which gas with an Argon-Nitrogen mixture as its main component is sealed. More particularly, a lamp in which such gas is sealed is classified as a good product or as a bad product by imposing a high DC voltage or a high AC or pulsed voltage with a comparatively low frequency of 1 kHz or less across the lamp's valve and filament coil to produce discharge and emission, in the lamp, of a light in a wavelength region in the vicinity of 560 nm and judging the radiation state in this 560 nm light spectrum, i.e., the state of discharge in the lamp. The means employed for detecting the light spectrum radiation state include means for judging lamp quality by monitoring the temporal response characteristic in the light spectrum in the 560 nm wavelength region and means for effecting accurate judgement of lamps regardless of variations in the state of discharge in lamps by detecting the difference in intensity of the light spectra of two wavelength regions which are the light spectrum of a 560 nm wavelength region and a light spectrum of a wavelength region other than the 560 nm wavelength region.

    Abstract translation: 本发明是一种灯质量判断装置和判断方法,其通过检测以氩氩混合物为主要成分的气体等气体填充白炽灯等电灯的密封状态来判断品质 密封。 更具体地说,这种气体被密封的灯被分类为好的产品,或通过在灯的阀门上施加1kHz或更小的相对较低的频率的高的直流电压或高的交流或脉冲电压来分类为不良产品, 在灯中产生在560nm附近的波长区域中的光的放电和发射,并判断该560nm光谱中的放射状态,即灯中的放电状态。 用于检测光谱辐射状态的手段包括通过监测560nm波长区域中的光谱中的时间响应特性来判断灯泡质量的装置,以及用于对灯进行准确判断的装置,而不管灯的放电状态如何变化 通过检测作为560nm波长区域的光谱和除了560nm波长区域以外的波长区域的光谱的两个波长区域的光谱的强度差。

    Spectrometer
    163.
    发明授权
    Spectrometer 失效
    光谱仪

    公开(公告)号:US4193691A

    公开(公告)日:1980-03-18

    申请号:US792676

    申请日:1977-05-02

    Inventor: Earl J. Fjarlie

    Abstract: The slit assembly of the present spectrometer comprises a liquid crystal cell. The electrodes of the cell are selectively actuated for producing a pattern of slits appropriate to the spectral lines of interest in the spectrum derived from the substance under analysis.

    Abstract translation: 本光谱仪的狭缝组件包括液晶单元。 选择性地致动电池的电极以产生适合于所分析的物质衍生光谱的感兴趣光谱线的狭缝图案。

    Spectrometers
    165.
    发明授权
    Spectrometers 失效
    光谱仪

    公开(公告)号:US3819945A

    公开(公告)日:1974-06-25

    申请号:US37299373

    申请日:1973-06-25

    CPC classification number: G01N21/33 G01J3/457 G01J2003/2866

    Abstract: The present disclosure relates to spectrometry. A method is disclosed for detecting nitric oxide (NO) without first converting it to nitrogen dioxide (NO2) by determining the intensity of a spectral signature in the range between 2,259 and 2,269 Angstroms. Apparatus is provided which, in one form, utilizes an output shutter arrangement having a plurality of reciprocating vanes operated at mutually exclusive frequencies for passing regions of absorption radiation and continuum radiation. Circuit means is provided for distinguishing the signals derived at the various frequencies to determine the relative amount of particular material in a sample. In another form of the invention, an output chopper is provided having at least three slit apertures, the center aperture being adapted to pass only radiation at an absorptive wavelength and the two outer apertures being adapted to pass radiation in the continuum. A vane is adapted to reciprocate between a first position wherein the chopper passes only radiation through the center aperture and a second position wherein the chopper passes only radiation through the two outer apertures. The area of each of the two outer apertures is preferably one-half the area of the center aperture. A detector viewing radiation passed by the chopper will average the radiation received from the two outer apertures. In yet another aspect of the invention, a window assembly is provided so that the spectrometer may be used as a a stack monitor, the window assembly having a slidable window which may be removed for cleaning purposes.

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