公开(公告)号：US5135305A

公开(公告)日：1992-08-04

申请号：US662931

申请日：1991-03-01

Applicant: Bruce C. Fitz-Patrick

Inventor： Bruce C. Fitz-Patrick

IPC: G01J3/06 ,  G01J3/10 ,  G01J3/42 ,  G01N21/72 ,  G01N21/74

CPC classification number: G01J3/06 ,  G01J3/10 ,  G01J3/42 ,  G01J2003/102 ,  G01J3/0202 ,  G01N21/72 ,  G01N21/74

Abstract: A positioning mechanism support structure mounted for movement between first and second predetermined positions in a spectroanalytical system includes relative to a reference member by a plurality of stabilizing coupling assemblies, and drive structure for producing motion of the support structure relative to the reference structure between first and second stop structures that define the first and second predetermined positions, respectively. Interlock structure responds to the drive force generated by the drive structure and de-energizes the drive structure in response to the drive force applied to that support structure exceeding a predetermined threshold value.

Abstract translation: 安装用于在分析系统中在第一和第二预定位置之间移动的定位机构支撑结构包括通过多个稳定耦合组件相对于参考构件的驱动结构，以及用于在第一和第二和第 分别限定第一和第二预定位置的第二停止结构。 联锁结构响应于由驱动结构产生的驱动力并且响应于施加到该支撑结构的驱动力超过预定阈值而使驱动结构断电。

公开(公告)号：US4613233A

公开(公告)日：1986-09-23

申请号：US585066

申请日：1984-03-01

Applicant: James B. Wilson

Inventor： James B. Wilson

IPC: G01J3/06 ,  G02B7/00 ,  G01J3/18

CPC classification number: G01J3/06

Abstract: A sine bar mechanism comprises an arm of radius R pivoted about an axis which is also the axis of a diffraction grating. An elongated member is pivotally mounted at one end, and is pivotally connected to the arm at its other end. The coordinates of the point at the pivotal mounting at one end of the member and the length of the elongated member are chosen to optimize the characteristics of the mechanism. Embodiments in which the elongated member comprises a lead screw and the pivotal connection comprises a nut pivotally attached to the arm and engaging the lead screw are described and their use in various types of monochromators are portrayed.

Abstract translation: 正弦杆机构包括围绕也是衍射光栅的轴线的轴线枢转的半径R的臂。 细长构件在一端枢转地安装，并且在其另一端枢转地连接到臂。 选择在构件的一端处的枢转安装处的点的坐标和细长构件的长度以优化机构的特性。 描述了细长构件包括导螺杆并且枢轴连接包括枢转地附接到臂并接合导螺杆的螺母的实施例，并且描绘了它们在各种类型的单色仪中的用途。

公开(公告)号：US4605306A

公开(公告)日：1986-08-12

申请号：US501902

申请日：1983-06-07

Applicant: Karoly Kaffka ,  Bela Nadai ,  Andras Czabaffy ,  Lorand Horvath

Inventor： Karoly Kaffka ,  Bela Nadai ,  Andras Czabaffy ,  Lorand Horvath

IPC: G01J3/06 ,  G01J3/18 ,  G01J3/20

CPC classification number: G01J3/18 ,  G01J3/06 ,  G01J3/20

Abstract: The invention relates to a grating monochromator for providing monochromatic radiation the wavelength of which is linearly proportional to a translation or rotation, said monochromator comprising an optical device including a reflection grating (1), an entrance slit (4) transmitting a beam onto the optical device, an exit slit (5) transmitting the beam reflected by the optical device, and a mechanism for moving the optical device and at least one of the slits (4,5) with respect to each other. Within said monochromator the moving mechanism is constructed so that in the course of the moving both the entrance slit (4) and the exit slit (5) are always positioned along a Rowland-circle (R) related to the optical device including the grating (1), and there is a transducer (42) producing an output signal corresponding to the current wavelength value, said transducer (42) being connected to a member (33) translating or rotating proportionally to a distance between a point (A) of the Rowland-circle (R) lying diametrically opposite to the optical device and said at least one slits (4,5). The moving mechanism expediently comprises means (41,33) for altering the distance between said point (A) of the Rowland-circle (R) lying diametrically opposite to the optical device and said at least one slit (4,5), and said member (33) translating or rotating proportionally to said distance is a part of said means.

Abstract translation: 本发明涉及一种用于提供其波长与平移或旋转成线性比例的单色辐射的光栅单色仪，所述单色仪包括光学装置，该光学装置包括反射光栅（1），将光束传输到光学 传输由光学装置反射的光束的出射狭缝（5）和用于相对于彼此移动光学装置和至少一个狭缝（4,5）的机构。 在所述单色仪内，移动机构被构造成使得在移动过程中，入口狭缝（4）和出口狭缝（5）总是沿着与包括光栅的光学装置（R）有关的Rowland-Circle 1），并且存在产生对应于当前波长值的输出信号的换能器（42），所述换能器（42）连接到一个构件（33），该构件（33）成比例地平移或旋转到 位于与所述光学装置和所述至少一个狭缝（4,5）直径相对的罗兰圆圈（R）。 移动机构有利地包括用于改变与光学装置与所述至少一个狭缝（4,5）直径相对的罗兰圆（R）的所述点（A）之间的距离的装置（41,33）和所述 与所述距离成比例地平移或旋转的构件（33）是所述装置的一部分。

公开(公告)号：US4560276A

公开(公告)日：1985-12-24

申请号：US525414

申请日：1983-08-22

Applicant: Shigeyoshi Yoshioka

Inventor： Shigeyoshi Yoshioka

IPC: G01J3/06 ,  G01J3/18

CPC classification number: G01J3/06

Abstract: A diffraction grating mounting device for a scanning monochromator comprising: a base member; a diffraction grating; a diffraction grating supporting axle which integrally supports the diffraction grating and is rotatably supported by the base member; a first arm fixed to the diffraction grating supporting axle at right angles thereto; a second arm which is swingably supported on the base member in uniplanar relation with the first arm; a link member which connects the first and the second arms at points equally apart from the rotational centers of the first and second arms, respectively, the distance between the points being equal to that between the rotational centers of the first and second arms; a cam follower axle fixed to the link member at right angles thereto; a cam having a linear driving portion and being provided at one end of a right circular cylinder; a motor for driving the cam; and means for biasing the link member of the first and second arms so as to make the cam follower axle contact the cam.

Abstract translation: 一种用于扫描单色仪的衍射光栅安装装置，包括：基底构件; 衍射光栅; 衍射光栅支撑轴，其一体地支撑衍射光栅并由基部构件可旋转地支撑; 固定在衍射光栅支承轴上的第一臂与其成直角; 第二臂，其与所述第一臂以单面关系可摆动地支撑在所述基座构件上; 连接构件，其分别在与第一和第二臂的旋转中心相等的点处连接第一和第二臂，点之间的距离等于第一和第二臂的旋转中心之间的距离; 凸轮从动轴，其与所述连杆构件成直角固定; 具有直线驱动部分并且设置在右圆柱体的一端的凸轮; 用于驱动凸轮的马达; 以及用于偏压第一和第二臂的连杆构件以使凸轮从动轴与凸轮接触的装置。

公开(公告)号：US4488051A

公开(公告)日：1984-12-11

申请号：US334808

申请日：1981-12-28

Applicant: James R. Brown ,  Roy W. Aday, Jr.

Inventor： James R. Brown ,  Roy W. Aday, Jr.

IPC: G01J3/06 ,  G01D5/34 ,  G01J3/18

CPC classification number: G01J3/06

Abstract: Apparatus for establishing a "home" position for a load element driven axially along the lead screw. A position sensor includes a first sensor element attached for axial travel with the load element and a second sensor element attached for rotation with the lead screw. The pair of sensor elements is operatively aligned at a predetermined relative axial and rotational position establishing the "home" position.

Abstract translation: 用于为沿着导螺杆轴向驱动的负载元件建立“原位置”的装置。 位置传感器包括与负载元件一起轴向移动的第一传感器元件和附接成与导螺杆一起旋转的第二传感器元件。 一对传感器元件在建立“主”位置的预定的相对轴向和旋转位置处可操作地对准。

公开(公告)号：US4318616A

公开(公告)日：1982-03-09

申请号：US128029

申请日：1980-03-07

Applicant: Morteza M. Chamran ,  Larkin B. Scott ,  Paul B. Williams

Inventor： Morteza M. Chamran ,  Larkin B. Scott ,  Paul B. Williams

IPC: G01J3/06 ,  G01J3/28 ,  G01J3/18

CPC classification number: G01J3/06 ,  G01J3/28

Abstract: A microprocessor based spectrophotometer including manual keyboard command for sequencing a monochromatic energy beam through a spectral range of wave-lengths to a keyboard selected wavelength. A manual adjustment knob is thereafter rotatable for generating a 4-bit gray code signal which successively changes as the adjustment knob is rotated. The microcomputer senses a change in the gray code signal and indexes (steps) the wavelength of the monochromatic beam in proportion to the positional change of the adjustment knob as indicated by the changing gray code. A visual display indicating wavelength setting and spectral response, is updated conjointly with manual wavelength adjustment.

Abstract translation: 基于微处理器的分光光度计包括手动键盘命令，用于通过波长的光谱范围到键盘所选波长对单色能量束进行排序。 然后手动调节旋钮可旋转，以产生随着调节旋钮旋转而连续变化的4位灰度代码信号。 微型计算机感测灰度代码信号的变化，并且与改变的灰度代码所示的调节旋钮的位置变化成比例地指示（步骤）单色光束的波长。 指示波长设定和光谱响应的视觉显示与手动波长调整联动更新。

公开(公告)号：US4285596A

公开(公告)日：1981-08-25

申请号：US825155

申请日：1977-08-16

Applicant: Isaac J. Landa

Inventor： Isaac J. Landa

IPC: G01N21/27 ,  G01J3/02 ,  G01J3/06 ,  G01J3/10 ,  G01J3/12 ,  G01J3/18 ,  G01J3/26 ,  G01J3/28 ,  G01J3/42 ,  G01J3/433 ,  G01N21/31

CPC classification number: G01J3/26 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0221 ,  G01J3/0232 ,  G01J3/024 ,  G01J3/0262 ,  G01J3/06 ,  G01J3/10 ,  G01J3/2889 ,  G01J3/433 ,  G01N21/314 ,  G01J2003/1273 ,  G01J2003/2853 ,  G01J3/1838

Abstract: An improved optical system is disclosed for rapid, accurate spectral analysis of the reflectivity or transmissivity of samples. A concave holographic diffraction grating oscillated at high speed is utilized to provide a rapid scanning of monochromatic light through a spectrum of wavelengths. The grating is positively driven at very high speed by a unique cam drive structure comprising identically shaped conjugate cams. The rapid scan by the grating enables the reduction of noise error by averaging over a large number of cycles. It also reduces the measurement time and thus prevents sample heating by excessive exposure to light energy. A filter wheel having dark segments for drift correction is rotated in the optical path and is synchronous with the grating. Source optics is employed to optimally shape the light source for particular applications. The system optics further includes a unique arrangement of lenses, including cylindrical lenses, to obtain the best light source shape which results in maximum light throughput. Fiber optics are also employed and arranged to meet the optimum requirements of the system for light collection and transmission through portions of the optical system.

Abstract translation: 公开了一种改进的光学系统，用于对样品的反射率或透射率进行快速，准确的光谱分析。 利用以高速振荡的凹面全息衍射光栅，通过一系列波长快速扫描单色光。 光栅通过包括相同形状的共轭凸轮的独特的凸轮驱动结构以非常高的速度被正向驱动。 光栅的快速扫描使得能够通过大量循环的平均来减少噪声误差。 它还减少测量时间，从而防止过度暴露于光能的样品加热。 具有用于漂移校正的暗段的滤光轮在光路中旋转并与光栅同步。 源光学器件用于为特定应用最佳地形成光源。 系统光学器件还包括透镜的独特布置，包括柱面透镜，以获得最佳的光源形状，其导致最大光通量。 还采用并布置光纤以满足通过光学系统的部分的光收集和透射的系统的最佳要求。

公开(公告)号：US4245908A

公开(公告)日：1981-01-20

申请号：US964752

申请日：1978-11-29

Applicant: Horst-Gerhard Gawlick

Inventor： Horst-Gerhard Gawlick

IPC: G01J3/12 ,  G01J3/06 ,  G01J3/18

CPC classification number: G01J3/06

Abstract: The invention relates to a spectrometer including a rotatable dispersive element, a stepping motor for varying the angular position of said dispersive element, a program transmitter for controlling said stepping motor, a timing generator and a recording instrument.

Abstract translation: 本发明涉及一种包括可旋转色散元件的光谱仪，用于改变所述色散元件的角位置的步进电机，用于控制所述步进电机的程序发送器，定时发生器和记录仪器。

公开(公告)号：US3664743A

公开(公告)日：1972-05-23

申请号：US3664743D

申请日：1969-11-03

Applicant: HITACHI LTD

Inventor： KANDA KIMIO

IPC: G01J3/06 ,  G02F1/03 ,  G01J3/42

CPC classification number: G01J3/06 ,  G02F1/03

Abstract: A SPECTROPHOTOMETER IN WHICH A LIGHT TO BE DIRECTED TO A DETECTOR IS SCANNED AND AT THE SAME TIME IT IS MODULATED IN FREQUENCY CORRESPONDING TO THE WAVELENGTH OF THE LIGHT TO BE SCANNED, THIS AN ANGULAR FREQUENCY OF AN ELECTRIC SIGNAL TAKEN OUT FROM SAID DETECTOR CORRESPONDING TO THE MODULATION IS MADE TO BE SELECTED.

公开(公告)号：US3594084A

公开(公告)日：1971-07-20

申请号：US3594084D

申请日：1969-08-01

Applicant: G K TURNER ASSOCIATES

Inventor： TURNER GEORGE K

IPC: G01J3/06 ,  G01J3/18

CPC classification number: G01J3/06

Abstract: A diffraction-grating-type monochromator apparatus having an improved apparatus for rotating the grating is described. The grating is fixedly mounted at the pivot of a follower arm which is pivoted by an arm bearing portion engaging the sloped surface of a wedge-shaped bearing member driven in a direction at an acute angle to the plane of the sloped surface. The wedge-shaped member is a solid wedge or a member in which the acute angle between the sloped surface and the direction of the drive is adjustable.