公开(公告)号：US4660977A

公开(公告)日：1987-04-28

申请号：US704344

申请日：1985-02-22

Applicant: Charles M. Wittmer

Inventor： Charles M. Wittmer

IPC: G01J3/06 ,  G01J3/42

CPC classification number: G01J3/06 ,  G01J3/42 ,  G01J2003/066

Abstract: A sequential spectrophotometer system having a light source, a scanning type monochromator, a stepper motor means for changing the monochromator wavelength over a light spectrum being scanned, a photomultiplier for measuring the intensity of light absorption or passage through a sample being tested and generating a signal corresponding thereto, data acquisition means for compiling data corresponding to said signals and means for recording such data generally as a function of light measured for each wavelength, the improvement comprising:a method and means to effect the data acquisition conversion at or about each desired wavelength during a respective stepper motor rotor displacement period, i.e., during each corresponding period of diffraction grating vibration or oscillation following a stepper motor disposition thereof to another wavelength position angle.

Abstract translation: 一种具有光源的顺序分光光度计系统，扫描型单色仪，用于改变被扫描的光谱上的单色仪波长的步进电机装置，用于测量光吸收强度或通过待测试样品的光电倍增器，并产生信号 数据获取装置，用于编译对应于所述信号的数据，以及用于记录这些数据的装置，该装置一般以每个波长所测量的光的函数为基准，该改进包括：一种方法和装置，用于在每个期望波长处或附近实现数据采集转换 在相应的步进电动机转子位移周期期间，即在步进电动机配置到另一个波长位置角度的衍射光栅振动或振荡的每个对应周期期间。

公开(公告)号：US4329051A

公开(公告)日：1982-05-11

申请号：US128027

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

CPC classification number: G01J3/06

Abstract: An improvement in a spectrophotometer of an improved apparatus for automatic initialization of the wavelength indexing function of the spectrophotometer. A drive mechanism drives the wavelength indexing movement of the spectrophotometer diffraction grating. The grating is initialized to a grating initialization position by physical opposition of a stop mechanism to the driving when a drive linkage reaches a drive linkage initialization position.

Abstract translation: 改进了分光光度计的波长分度功能自动初始化装置的分光光度计的改进。 驱动机构驱动分光光度计衍射光栅的波长分度运动。 当驱动联动装置达到驱动联动装置初始化位置时，光栅通过停止机构的物理对抗被初始化为光栅初始化位置到驱动。

公开(公告)号：US4245911A

公开(公告)日：1981-01-20

申请号：US014519

申请日：1979-02-23

Applicant: Ernest W. Steinbrenner

Inventor： Ernest W. Steinbrenner

IPC: G01J3/06 ,  G01J3/18

CPC classification number: G01J3/06

Abstract: A slow scan, frequency limited spectrometer having a screw mechanism for driving a rotatable grating is improved by incorporating and interlinking the following new constituent members with the screw mechanism: a cylindrical cam member with a groove and a constraint to attain a predetermined pitch, so that rapid scanning of a preselected wavelength range is achieved with the grating; a high torque, variable speed, direct current electric motor, so that the rapid scanning may be varied in speed; and, a liner potentiometer with a sliding contact, so that a remote wavelength readout of the variable rapid scanning can be obtained. Cylinder cam members of various pitches are also disclosed for use in scanning different wavelength ranges. At a low cost for improvements, the resulting spectrometer provides a variable fast scan, and is frequency selective.

Abstract translation: 具有用于驱动可旋转光栅的螺旋机构的慢速扫描频率限制光谱仪通过将以下新构成部件与螺杆机构并入并相互连接而得以改进：具有凹槽并具有约束的圆柱形凸轮部件以获得预定间距，使得 用光栅实现预选波长范围的快速扫描; 高扭矩，可变速度，直流电动机，使得快速扫描的速度可能变化; 以及具有滑动接触的衬垫电位器，使得可以获得可变快速扫描的远程波长读出。 还公开了用于扫描不同波长范围的各种间距的气缸凸轮构件。 以低成本改进，所得到的光谱仪提供可变快速扫描，并且是频率选择性的。

公开(公告)号：US4225233A

公开(公告)日：1980-09-30

申请号：US874399

申请日：1978-02-02

Applicant: Kenneth L. Ogan

Inventor： Kenneth L. Ogan

IPC: G01J3/28 ,  G01J3/18 ,  G01J3/42

CPC classification number: G01J3/2889 ,  G01J3/06 ,  G01J3/18

Abstract: A spectrometer capable of providing a predetermined wavelength of output light in accordance with a control voltage signal applied to a scanning element is described. The scanning element located at the grating image of the spectrometer is a small mirror attached to the rotor of a galvanometer whose angular position is accurately controlled by a closed-loop electronic control. The spectrum reflected from the mirror is passed through a slit to provide the output light of a predetermined wavelength. Selection of the waveform of the control signal allows the spectrometer to be operated as a dual wavelength spectrometer, to use a linear wavelength scan, or other wavelength scan patterns for absorbance analyses of a sample. The rapid scan capability of this instrument has been utilized to extend the measurement of absorbance changes at one wavelength, corrected for light scattering changes (dual-wavelength spectroscopy), to the measurement of the complete differential absorbance spectrum, similarly corrected for light scattering changes (corrected-differential spectroscopy).

Abstract translation: 描述能够根据施加到扫描元件的控制电压信号提供预定波长的输出光的光谱仪。 位于光谱仪的光栅图像处的扫描元件是附接到电流计的转子的小反射镜，其角位置被闭环电子控制精确地控制。 从反射镜反射的光谱通过狭缝，以提供预定波长的输出光。 选择控制信号的波形允许光谱仪作为双波长光谱仪操作，使用线性波长扫描或其他波长扫描图案用于样品的吸光度分析。 该仪器的快速扫描功能已经被用于扩展在一个波长处的光度测量的测量，用于光散射变化（双波长光谱）校正到完全差分吸收光谱的测量，类似地校正光散射变化（ 校正差分光谱）。

公开(公告)号：US4203669A

公开(公告)日：1980-05-20

申请号：US37033

申请日：1979-05-08

Applicant: Yoshio Maeda ,  Koichi Matsumoto ,  Koji Nishiwaki

Inventor： Yoshio Maeda ,  Koichi Matsumoto ,  Koji Nishiwaki

IPC: G01J3/06 ,  G01J3/28 ,  G01J3/12

CPC classification number: G01J3/06 ,  G01J2003/2866

Abstract: A wavelength reading apparatus for a monochromator comprises a monochromator utilizing a dispersion element for dispersing light in accordance with its wavelengths, a dispersion element driver unit for rotating the dispersion element to effect the tuning wavelength scanning operation of the monochromator and a wavelength counter for adding or subtracting a pulse, which is produced each time when the tuning wavelength of the monochromator changes by a predetermined wavelength increment, depending on whether the wavelength increases or decreases. The wavelength counter is set to a predetermined counting value, in response to a wavelength calibrating pulse produced when the tuning wavelength of the monochromator reaches a predetermined value, so that any counting value of the wavelength counter correctly represents the instant value of the tuning wavelength of the monochromator.

Abstract translation: 用于单色仪的波长读取装置包括利用根据其波长分散光的色散元件的单色仪，用于旋转色散元件以实现单色仪的调谐波长扫描操作的色散元件驱动单元，以及用于添加或 减去每当单色仪的调谐波长根据波长增加或减小而改变预定波长增量时产生的脉冲。 响应于当单色仪的调谐波长达到预定值时产生的波长校准脉冲，波长计数器被设置为预定的计数值，使得波长计数器的任何计数值正确地表示调谐波长的即时值 单色仪。

公开(公告)号：US4037960A

公开(公告)日：1977-07-26

申请号：US683188

申请日：1976-05-04

Applicant: James H. Macemon

Inventor： James H. Macemon

IPC: G01J3/06 ,  G01N21/00 ,  G01J3/42

CPC classification number: G01J3/06

Abstract: In a recording spectrophotometer the ordinate of the plotter-scriber is controlled by the output of a photomultiplier while the abscissa of the plotter-scriber is controlled by a selectable mode manually adjusted controller.In one mode, the controller furnishes a time base signal of selected rate of change, so that the abscissa of the plotter-scriber varies with the passage of time in accordance with said rate of change.In aother mode, the controller furnishes a stepping signal of selected periodicity, for application to a stepping motor, which changes the wavelength adjustment of the spectrophotometer at a rate determined by the selected periodicity. The spectrophotometer furnishes to the plotter-scriber an analog voltge varying with the instantaneous wavelength setting of the spectrophotometer, so that the abscissa of the plotter-scriber correspondingly varies with the instantaneous value of the wavelength.A common manually adjusted digital setting means is used for adjusting either the said selected rate of change of the time base or the said selected periodicity of the stepping signal.

公开(公告)号：US4027975A

公开(公告)日：1977-06-07

申请号：US580920

申请日：1975-05-27

Applicant: David Turner ,  Robert John Speer

Inventor： David Turner ,  Robert John Speer

IPC: G01J3/06 ,  G01J3/20 ,  G02B5/18 ,  G01J3/18

CPC classification number: G02B5/1861 ,  G01J3/06 ,  G01J3/20

Abstract: A scanning monochromator or spectrometer having a reflecting grating whose curvature in the meridian plane is equal to the curvature of a circle upon which the source, detecting means and grating lie and whose lines are ruled with a frequency which varies systematically and directly in proportion to the distance of the lines from a point of origin on the track as determined by the geometry of the equipment, and gratings therefor.

Abstract translation: 具有反射光栅的扫描单色仪或光谱仪，其在子午线平面中的曲率等于源，检测装置和光栅所在的圆弧的曲率，并且其线被划分为频率，该频率系统地和直接地与 由设备的几何形状确定的轨道上的原点距离以及光栅的距离。

公开(公告)号：US3658423A

公开(公告)日：1972-04-25

申请号：US3658423D

申请日：1971-01-14

Applicant: SPECTRAMETRICS INC

Inventor： ELLIOTT WILLIAM G

IPC: G01J3/00 ,  G01J3/06 ,  G01J3/12 ,  G01J3/14 ,  G01J3/18 ,  G01J3/02

CPC classification number: G01J3/1809 ,  G01J3/06 ,  G01J3/14 ,  G01J2003/1204 ,  G01J2003/1828

Abstract: A spectrometer having an entrance aperture, at least one collimating mirror, a prism and an echelle grating which is so mounted to provide rotation in two directions thereby providing adjustment of the vertical and horizontal components of the dispersed energy in the exit focal plane.

Abstract translation: 具有入射孔的光谱仪，至少一个准直镜，棱镜和梯形光栅，其被安装成在两个方向上提供旋转，从而提供在出射焦平面中的分散能量的垂直和水平分量的调节。

公开(公告)号：US3603690A

公开(公告)日：1971-09-07

申请号：US3603690D

申请日：1969-10-22

Applicant: NASA

Inventor： HARD THOMAS M

IPC: G01J3/06 ,  H01S3/081 ,  H01S3/086 ,  G01B9/02 ,  G01N21/16

CPC classification number: G01J3/06 ,  H01S3/0812 ,  H01S3/086

Abstract: This disclosure describes optical systems that have output beams that are spatially invariant to the angle of incidence upon a certain rotatable surface forming a part of the systems, and can be used to select the wavelength of the output of an optical source, such as a laser cavity, or to aid in measuring the reflectance of a material in reflectance spectroscopy. The optical systems comprise various combinations of plane mirrors and plane diffraction gratings (or sample surfaces), in some embodiments, spherical mirrors. The plane mirrors, plane gratings and spherical mirrors are either rotated or fixed in space in accordance with a particular embodiment. The moveable suitable movement mechanism, such as a micrometer. By rotating the shaft of the micrometer to a particular incidence angle, the frequency of the output of a laser cavity can be selected. Alternately, the reflectance of a material can be observed for a particular angle. In either case, the output beam remains spatially invariant as the position of the shaft and its attached elements is changed.

公开(公告)号：US3498720A

公开(公告)日：1970-03-03

申请号：US3498720D

申请日：1967-11-17

Applicant: KERNFORSCHUNGSANLAGE JUELICH

Inventor： KOHLHAAS WILHELM ,  CONRADS JOHANNES

IPC: G01J3/00 ,  G01J3/06 ,  G01J3/20 ,  G01N21/34

CPC classification number: G01J3/06 ,  G01J3/0202 ,  G01J3/20