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    Optical alignment system for optical spectrometers
    31.
    发明授权
    Optical alignment system for optical spectrometers 失效
    光学光度计光学对准系统

    公开(公告)号：US3846024A

    公开(公告)日：1974-11-05

    申请号：US44236174

    申请日：1974-02-14

    Applicant: BAIRD ATOMIC INC

    Inventor： TURNER A

    IPC: G01J3/18 ,  G01J3/32 ,  G01J3/02

    CPC classification number: G01J3/32 ,  G01J3/0289 ,  G01J3/18

    Abstract: In an optical spectrometer, a pair of solid state light sources, an optical filter, a photo detector, a servo amplifier and a servo motor are provided for maintaining proper alignment of a diffraction grating with respect to a focal curve having entrance and exits slits. The light sources and photo detector are positioned in registration with a vertical entrance slit and a vertical offset exit slit, respectively, the vertical entrance slit and vertical offset exit slit being positioned symmetrically about the normal of the diffraction grating. The light emitted from one of the sources is diffracted by the grating and imaged on the upper portion of the offset exit slit and the light emitted from the other source is diffracted by the grating and imaged on the lower portion of the offset exit slit. The photo detector generates an error signal, the amplitude of which is specified by the difference between the intensity of the light passed through the upper and lower portions of the offset exit slit and the optical filter. The error signal is applied to the servo amplifier having upper and lower threshold limits. The servo amplifier generates a signal which is applied to the servo motor for controlling the alignment of the diffraction grating and focal curve.

    Abstract translation: 在光谱仪中，提供一对固态光源，滤光器，光电检测器，伺服放大器和伺服电机，用于保持衍射光栅相对于具有入射和出射狭缝的焦点曲线的适当对准。 光源和光电检测器分别与垂直入口狭缝和垂直偏移出口狭缝对准，垂直入口狭缝和垂直偏移出口狭缝围绕衍射光栅的法线对称定位。 从源极发射的光被光栅衍射并成像在偏移出射狭缝的上部，并且从另一光源发射的光被光栅衍射并成像在偏移出射狭缝的下部。 光检测器产生一个误差信号，其幅度由通过偏移出口狭缝的上部和下部的光的强度与光学滤波器之间的差来确定。 误差信号被施加到具有上限和下限阈值的伺服放大器。 伺服放大器产生施加到伺服电动机的信号，用于控制衍射光栅和焦点曲线的对准。

    Multimode spectral analyzer
    32.
    发明授权
    Multimode spectral analyzer 失效
    多模式光谱分析仪

    公开(公告)号：US3634688A

    公开(公告)日：1972-01-11

    申请号：US3634688D

    申请日：1970-01-19

    Applicant: BAIRD ATOMIC INC

    Inventor： ROCCO JAMES V DI

    IPC: G01T1/40 ,  G06F17/00 ,  G01T1/20

    CPC classification number: G01T1/40

    Abstract: A multimode spectral analyzer which is capable of operating selectively as a multichannel pulse height analyzer, a multiscaler, a Mossbauer analyzer, or as a signal enchancer is provided for processing the output of radiation detectors. The multimode spectral analyzer includes a multichannel analyzer for determining the pulse amplitude range to be analyzed, an analog to digital converter for providing a series of pulses proportional to the pulse heights from the multichannel analyzer, a memory for storing the series of pulses from the analog to digital converter, and a display for presenting the information stored in the memory.

    Abstract translation: 能够选择性地作为多通道脉冲高度分析仪操作的多模式频谱分析仪，多速度计，莫斯鲍尔分析仪或信号增强器，用于处理辐射探测器的输出。 多模光谱分析仪包括用于确定要分析的脉冲幅度范围的多通道分析器，用于提供与来自多通道分析器的脉冲高度成比例的一系列脉冲的模数转换器，用于存储来自模拟信号的脉冲序列的存储器 数字转换器，以及用于呈现存储在存储器中的信息的显示器。

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