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。

公开(公告)号：US3818197A

公开(公告)日：1974-06-18

申请号：US25915272

申请日：1972-06-02

Applicant: BAIRD ATOMIC INC

Inventor： PICCOLO A ,  TURNER A

IPC: G06F17/00 ,  G06F15/06 ,  G01J3/36 ,  G06F15/20

CPC classification number: G01J3/443 ,  G01J3/02 ,  G01J3/027

Abstract: A system for calculating, analyzing and presenting a chemical analysis of a specimen is comprised of a spectrometer, a converter-control, a computer, programmers, a keyboard, and a display. The format of the presented data the calculation of the specimen data and the analysis of the calculated data are specified by a combination of interrogating signals from the programmers and responsive signals from the keyboard.

Abstract translation: 用于计算，分析和呈现试样的化学分析的系统由光谱仪，转换器控制，计算机，程序员，键盘和显示器组成。 所呈现的数据的格式，样本数据的计算和计算数据的分析由来自编程器的询问信号和来自键盘的响应信号的组合指定。