Dual wavelength photometer with means for varying light signal wavelengths
    1.
    发明公开
    Dual wavelength photometer with means for varying light signal wavelengths 失效
    双波长光电测量仪,用于改变光信号波长

    公开(公告)号:EP0045898A3

    公开(公告)日:1982-02-24

    申请号:EP81105953

    申请日:1981-07-28

    Applicant: Vitafin N.V.

    CPC classification number: G01J3/12 G01J3/42

    Abstract: An automated photometer is provided having a monochromator which generates light signals at least two controllable wavelength, for use in a dual wavelength analyzer system. Chopped light is alternately directed from two entrance slits 57 displaced from each other onto a fixed grating 60, thereby providing an alternating light source having light pulses at two defined wavelengths. The light signal is passed through one or more cuvettes 92A, 92B each containing a sample, and a photodetector 93A, 93B on the other side of the cuvette generates a periodic electrical signal representative of the absorbance of the test sample at the two defined wavelengths. An electronic processing channel 1, 2 is provided for each cuvette, adapted to process the periodic electrical signal which contains information derived at the two wavelengths and to provide output signals representative of the two absorbance values.

    Abstract translation: 提供一种自动光度计,其具有产生至少两个可控波长的光信号的单色仪,用于双波长分析仪系统。 切割的光从两个相互偏移的入口狭缝57交替地引导到固定光栅60上,从而提供具有两个限定波长的光脉冲的交替光源。 光信号通过一个或多个每个包含样品的比色皿92A,92B,并且在反应杯的另一侧上的光电检测器93A,93B产生代表两个限定波长的测试样品的吸光度的周期性电信号。 为每个比色杯提供电子处理通道1,2,适用于处理包含在两个波长处得到的信息的周期性电信号,并提供表示两个吸光度值的输出信号。

    METHOD AND APPARATUS FOR OBTAINING DERIVATIVES OF PHOTOMETRIC SIGNALS
    3.
    发明申请
    METHOD AND APPARATUS FOR OBTAINING DERIVATIVES OF PHOTOMETRIC SIGNALS 审中-公开
    用于获得光学信号衍生物的方法和装置

    公开(公告)号:WO1981001464A1

    公开(公告)日:1981-05-28

    申请号:PCT/AU1980000092

    申请日:1980-11-19

    CPC classification number: G06J1/00 G01N21/272

    Abstract: Method and apparatus for obtaining derivatives of photometric signals in spectroscopy wherein an analogue signal characteristic of a sample (12) is converted to a digital signal which is differentiated using an approximation algorithm in a non-recursive digital filter (18) operating at predetermined differentiating intervals. The derivative is then low pass filtered in a recursive digital filter (23) at filtering intervals shorter than the differentiating intervals to reconstruct an interpolated derivative.

    EQUIPMENT FOR THE SPECTROSCOPIC MEASUREMENT OF GAS
    4.
    发明申请
    EQUIPMENT FOR THE SPECTROSCOPIC MEASUREMENT OF GAS 审中-公开
    气体光谱测量设备

    公开(公告)号:WO1994011713A1

    公开(公告)日:1994-05-26

    申请号:PCT/NO1993000170

    申请日:1993-11-18

    CPC classification number: G01J3/26 G01J2003/1226 G01N21/3504

    Abstract: In the present equipment for spectroscopic measurement of a gas in a gas mixture, for example a gas in the atmosphere, a filter device is used to filter out one spectral line from other spectral lines belonging to other gases and the transmitted light is detected by a detector which gives a signal to devices for calculating and displaying the measurement data. The filter device consists of an interference filter (1), at least one fixed etalon (2) and a Fabry-Perot interferometer (1). In a preferred design, the filter can be fitted with two fixed etalons instead of one.

    Abstract translation: 在用于气体混合物中的气体(例如大气中的气体)的光谱测量的本设备中,使用过滤器装置从属于其它气体的其它谱线滤出一条光谱线,并且透射光由 检测器,其向用于计算和显示测量数据的设备提供信号。 滤波器装置由干涉滤波器(1),至少一个固定的标准具(2)和法布里 - 珀罗干涉仪(1)组成。 在优选的设计中,过滤器可以安装两个固定的标准具而不是一个。

    SPECTROMETER WITH DISCHARGE LIMITING MEANS
    5.
    发明申请
    SPECTROMETER WITH DISCHARGE LIMITING MEANS 审中-公开
    具有放电限制装置的光谱仪

    公开(公告)号:WO1996019716A1

    公开(公告)日:1996-06-27

    申请号:PCT/AU1995000856

    申请日:1995-12-19

    CPC classification number: H01J49/067 G01J3/443 H01J49/105

    Abstract: An inductively coupled plasma spectrometer including shielding/sampling means (1) located between a plasma torch (3) and an optical system (4) of the spectrometer, wherein said shielding/sampling (1) means is associated with an enclosure (9) for the plasma torch such that a relatively high independance path (10, 11) is established for limiting flow of electrical current between said shielding/sampling means (1) and said enclosure (9).

    Abstract translation: 一种电感耦合等离子体光谱仪,包括位于等离子体焰炬(3)和光谱仪的光学系统(4)之间的屏蔽/采样装置(1),其中所述屏蔽/取样(1)装置与外壳(9)相关联, 等离子体焰炬,使得建立相对较高的独立路径(10,11)以限制所述屏蔽/采样装置(1)和所述外壳(9)之间的电流流动。

    Photometer having image and wavelength scanning modes
    7.
    发明公开
    Photometer having image and wavelength scanning modes 失效
    具有图像和波长扫描模式的光电测量仪

    公开(公告)号:EP0183415A3

    公开(公告)日:1988-11-09

    申请号:EP85308144

    申请日:1985-11-08

    Inventor: Lihl, Reinhard

    Abstract: A photometer adapted to receive light deflected from a microscope observation axis (15) to alternatively provide image or wavelength scanning modes. The photometer comprises an entrance axis (29) for light received from the microscope, a pin hole occluder (12) positioned at one end of the entrance axis (29), a detector axis (27) having a detector (18) at one end thereof, and first and second scanning axes (16, 28) selectively connecting the entrance axis (29). The first scanning axis (16) is provided with a first imaging means (14) positioned thereon for imaging the pin hole occluder (12 near said detector (18). The second scanning axis (28) is provided with monochromator means (32) to reflect a single wavelength of light and a second imaging means for imaging the pin hold occluder (12) near the detector (18). The photometer also includes selector means (26) for connecting a chosen scanning axis (16, 28) to said entrance and detector axes (29, 27). By means of this arrangement image scanning' can be performed when said first scanning axis (16) connects said entrance and detector axes (29, 27), and wavelength scanning can be performed when said second scanning axis (28) connects said entrance and detector axes (29, 27).

    Abstract translation: 适于接收从显微镜观察轴(15)偏转的光的光度计,以交替地提供图像或波长扫描模式。 所述光度计包括用于从所述显微镜接收的光的入口轴线(29),位于所述入口轴线(29)的一端的针孔闭塞器(12),在一端具有检测器(18)的检测器轴线 以及选择性地连接入口轴线(29)的第一和第二扫描轴(16,28)。 第一扫描轴(16)设置有定位在其上的第一成像装置(14),用于对针孔闭塞器(12)在所述检测器(18)附近进行成像,第二扫描轴(28)设置有单色仪装置 反射单个波长的光和第二成像装置,用于对检测器(18)附近的针保持闭塞器(12)进行成像。光度计还包括选择器装置(26),用于将所选择的扫描轴线(16,28)连接到所述入口 和检测器轴(29,27),通过该布置,当所述第一扫描轴(16)连接所述入口和检测器轴(29,27)时,可执行图像扫描,并且当所述第二扫描轴 (28)连接所述入口和检测器轴(29,27)。

    SPECTROMETER
    10.
    发明申请
    SPECTROMETER 审中-公开
    光谱仪

    公开(公告)号:WO1998001729A1

    公开(公告)日:1998-01-15

    申请号:PCT/GB1997001797

    申请日:1997-07-02

    CPC classification number: G01J3/02 G01J3/0243 G01J3/0256 G01J3/18

    Abstract: A spectrometer (20) is formed from two supports (10, 30). A first of the supports (10) has a diffraction grating (11) for dispersing light, source locating means (12) for locating a source of said light, and detector locating means (13) for locating a detector of said dispersed light. The other support is a mirror support (30) having a body and at least two reflective surfaces (31, 32) integrally formed with the body of the support (30). In preferred embodiments, one of the reflective surfaces may be divided into segments (32, 32'; 33). The spectrometer (20) can be cheaply mass-produced. In aspects of the invention, the distances between the source, detector and dispersive means are accurately fixed during manufacture in a simple and inexpensive manner.

    Abstract translation: 光谱仪(20)由两个支架(10,30)形成。 支撑件(10)中的第一个具有用于分散光的衍射光栅(11),用于定位所述光源的源定位装置(12)和用于定位所述分散光的检测器的检测器定位装置(13)。 另一个支撑件是具有主体的反射镜支撑件(30)和与支撑件(30)的主体一体形成的至少两个反射表面(31,32)。 在优选实施例中,反射表面之一可以被划分成段(32,32'; 33)。 光谱仪(20)可以廉价批量生产。 在本发明的方面,源,检测器和分散装置之间的距离在制造过程中以简单和便宜的方式精确地固定。

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