分光光度计
    1.
    发明授权

    公开(公告)号:CN1026820C

    公开(公告)日:1994-11-30

    申请号:CN92102290.5

    申请日:1992-03-28

    Abstract: 一种分光光度计,包括:光源切换装置,用以摆动光源反射镜来切换多个光源;滤光片选择装置;衍射光栅转动机构;以及控制器,用以利用衍射光栅转动机构的粗略原点传感器和光度计确定三个驱动机构的动作原点。控制器的工作是:使滤光片架的一端与止动件接触,从而确定滤光片运动的原点;用粗略原点传感器确定衍射光栅的大致原点;检测光度计测出最大光强时的位置,由此确定光源反射镜运动的原点和衍射光栅运动的精确原点。

    分光光度计
    2.
    发明公开

    公开(公告)号:CN1065523A

    公开(公告)日:1992-10-21

    申请号:CN92102290.5

    申请日:1992-03-28

    Abstract: 一种分光光度计,包括:光源切换装置,用以摆动光源反射镜来切换多个光源;滤光片选择装置;衍射光栅转动机构;以及控制器,用以利用衍射光栅转动机构的粗略原点传感器和光度计确定三个驱动机构的动作原点。控制器的工作是:使滤光片架的一端与止动件接触,从而确定滤光片运动的原点;用粗略原点传感器确定衍射光栅的大致原点;检测光度计测出最大光强时的位置,由此确定光源反射镜运动的原点和衍射光栅运动的精确原点。

    Spectrophotometer
    3.
    发明授权
    Spectrophotometer 失效
    分光光度计

    公开(公告)号:US5223913A

    公开(公告)日:1993-06-29

    申请号:US858631

    申请日:1992-03-27

    Abstract: A spectrophotometer including: a) a light source switching mechanism for switching a plurality of light sources by swinging a light source mirror; b) a filter selecting mechanism; c) a diffraction grating rotating mechanism; and d) a controller for determining the operation origins of the three driving mechanisms using a rough origin sensor provided for the diffraction grating rotating mechanism and a photometer. The operation of the controller is to: i) determine an origin of the movement of the filter by making an end of the filter frame to touch a stopper; ii) determine a rough origin of the diffraction grating using the rough origin sensor; and iii) determine an origin of the movement of the light source mirror and a precise origin of the movement of the diffraction grating by detecting the position at which the photometer detects the maximum intensity of light.

    MEASUREMENT SYSTEM OF REAL-TIME SPATIALLY-RESOLVED SPECTRUM AND TIME-RESOLVED SPECTRUM AND MEASUREMENT MODULE THEREOF
    4.
    发明申请
    MEASUREMENT SYSTEM OF REAL-TIME SPATIALLY-RESOLVED SPECTRUM AND TIME-RESOLVED SPECTRUM AND MEASUREMENT MODULE THEREOF 审中-公开
    实时空间分辨率和时间分辨率的测量系统及其测量模块

    公开(公告)号:US20170016769A1

    公开(公告)日:2017-01-19

    申请号:US14825252

    申请日:2015-08-13

    Abstract: The present invention provides a measurement system of real-time spatially-resolved spectrum and time-resolved spectrum and a measurement module thereof. The measurement system includes an excitation light and a measurement module. The excitation light excites a fluorescent sample and the measurement module receives and analyzes fluorescence emitted by the fluorescent sample. The measurement module includes a single-photon linear scanner and a linear CCD spectrometer. The single-photon linear scanner selectively intercepts a light beam component of a multi-wavelength light beam that has a predetermined wavelength to generate a single-wavelength time-resolved signal, wherein the multi-wavelength light beam is generated by splitting the fluorescence. The linear CCD spectrometer receives the multi-wavelength light beam and generates a spatially-resolved full-spectrum fluorescence signal. With the implementation of the present invention, the spatially-resolved full-spectrum fluorescence signal and the single-wavelength time-resolved signal can be observed at the same time. Thus, the facility of a fluorescence spectrometer is improved.

    Abstract translation: 本发明提供实时空间分辨光谱和时间分辨光谱的测量系统及其测量模块。 测量系统包括激发光和测量模块。 激发光激发荧光样品,测量模块接收和分析由荧光样品发出的荧光。 测量模块包括单光子线性扫描仪和线性CCD光谱仪。 单光子线性扫描器选择性地截取具有预定波长的多波长光束的光束分量以产生单波长时间分辨信号,其中通过分离荧光产生多波长光束。 线性CCD光谱仪接收多波长光束并产生空间分辨全谱荧光信号。 通过本发明的实现,可以同时观察空间分辨全谱荧光信号和单波长时间分辨信号。 因此,提高了荧光光谱仪的设备。

    Continuous monochrometer drift compensation of a spectral monochromator
    5.
    发明授权
    Continuous monochrometer drift compensation of a spectral monochromator 失效
    光谱单色仪的连续单色仪漂移补偿

    公开(公告)号:US4916645A

    公开(公告)日:1990-04-10

    申请号:US201250

    申请日:1988-06-02

    Abstract: Iterative compensation of drift of peak positions of spectral lines is effected in a spectral monochromator including a grating, a detector of spectral fractions of a spectral band, a stepper motor for varying relative orientation of the grating and the detector, and a computer. Computer-defined spectral windows each encopasses a spectral band and has an initial spectral center. Each window is scanned to determine a peak spectral position. Calculation is made for determining a spectral position error of the peak position from the initial center for each corresponding window. A functional average of the offsets for the peaks is calculated as a linear function of window position, and a revised spectral center for each window is calculated as being equal to the initial center plus the functional average for the window position determined from the linear function. Each window is shifted correspondingly. The step of successively scanning through each window is repeated to determine a new peak position for each corresponding band, whereby each new peak position is maintained near the spectral center of each corresponding window.

    Scanning monochromator
    7.
    发明授权
    Scanning monochromator 失效
    扫描单色仪

    公开(公告)号:US5096295A

    公开(公告)日:1992-03-17

    申请号:US664592

    申请日:1991-03-01

    CPC classification number: G01J3/06 G01J2003/063 G01J2003/066

    Abstract: In its preferred embodiment, a scanning monochromator uses a pulse-driven micro-stepping motor to drive a spectral-dispersion element via a reduction-gear harmonic drive. The motor is directly coupled to the input hub of the reduction-gear drive, and the output hub of the reduction-gear drive directly supports the spectral-dispersion element. By selecting a motor with a great number of steps per revolution, and a harmonic drive with a great reduction ratio, a resolution of 5 million pulsed steps is available, per single rotation of the output hub of the reduction-gear drive. This translates into more than 600,000 incremental angular-displacement steps over a usable 45.degree. range of dispersion-element rotation.

    Abstract translation: 在其优选实施例中,扫描单色仪使用脉冲驱动微步进电机经由减速齿轮谐波驱动来驱动频谱色散元件。 电机直接连接在减速齿轮传动装置的输入轮毂上,减速齿轮传动装置的输出轮毂直接支撑分光元件。 通过选择每转数很多的电机,以及减速比大的谐波驱动器,减速齿轮传动的输出轮毂每旋转一次就可以获得500万次脉冲步进的分辨率。 这在可用的45°范围的分散体旋转中转化为超过60万个增量角位移步长。

    Grating ozone spectrophotometer
    8.
    发明授权
    Grating ozone spectrophotometer 失效
    光栅臭氧分光光度计

    公开(公告)号:US4652761A

    公开(公告)日:1987-03-24

    申请号:US677950

    申请日:1984-12-04

    Abstract: A holographic grating spectrophotometer for detecting ozone and sulphur dioxide in the atmosphere is described which provides automatic calibration and which provides automatic linearity correction for the photomultiplier tube. Automatic calibration is provided by using a computer to control a stepper motor to move the grating so that the photomultiplier tube receives maximum intensity at the calibration wavelength of 302.1 nm from a mercury source. Automatic linearity correction is obtained by cycling a wavelength selection mask across exit slits located in the focal plane of the device and firstly combines separately taken counts of two different wavelengths and comparing this sum with the sum of counts of these wavelengths taken simultaneously. The difference is used to calculate photomultiplier tube deadtime and improve accuracy of the results. In a preferred embodiment five wavelengths are used to calculate ozone and sulphur dioxide levels, and a stepper motor driving a cylindrical wavelength selection mask permits exit slits to be exposed to predetermined wavelengths one at a time.

    Abstract translation: 描述了用于检测大气中的臭氧和二氧化硫的全息光栅分光光度计,其提供自动校准,并且为光电倍增管提供自动线性校正。 通过使用计算机来控制步进电机来移动光栅来提供自动校准,使得光电倍增管在距离汞源的302.1nm的校准波长处接收最大强度。 通过将波长选择掩模穿过位于器件的焦平面中的出口狭缝来获得自动线性校正,并且首先将分离的两个不同波长的计数组合并将该和与同时采用的这些波长的计数之和进行比较。 差异用于计算光电倍增管死区时间,提高结果精度。 在优选实施例中,使用五个波长来计算臭氧和二氧化硫水平,并且驱动圆柱形波长选择掩模的步进电机允许出口狭缝一次暴露于预定波长。

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