公开(公告)号：US3512893A

公开(公告)日：1970-05-19

申请号：US3512893D

申请日：1967-12-18

Applicant: DU PONT

Inventor： FAULHABER MARK E ,  WITHERELL PETER G

IPC: G01J3/46 ,  G01J3/48 ,  G01J3/50

CPC classification number: G01J3/46 ,  G01J3/465 ,  G01J3/513 ,  G01J3/524 ,  G01J2003/466

公开(公告)号：US3507598A

公开(公告)日：1970-04-21

申请号：US3507598D

申请日：1965-08-09

Applicant: HARRY H MALVIN

Inventor： MALVIN HARRY H

IPC: G01N21/25 ,  G01J3/48 ,  G01J3/34 ,  G01J3/46

CPC classification number: G01N21/253

公开(公告)号：US3490849A

公开(公告)日：1970-01-20

申请号：US3490849D

申请日：1966-02-24

Applicant: LOEBL & CO LTD JOYCE

Inventor： HAMBLETON JAMES

IPC: G01J3/51 ,  G01N21/47 ,  G01J3/46 ,  G01J3/48 ,  G01N21/22

CPC classification number: G01N21/474 ,  G01J3/0251 ,  G01J3/51

公开(公告)号：US3489498A

公开(公告)日：1970-01-13

申请号：US3489498D

申请日：1965-11-05

Applicant: MELPAR INC

Inventor： BRODY SAMUEL S ,  CHANEY JOHN E

IPC: G01N21/72 ,  G01N27/62 ,  G01N30/64 ,  G01N30/68 ,  G01J3/48 ,  G01N21/56 ,  G01N21/58

CPC classification number: G01N27/626 ,  G01N21/72 ,  G01N30/68 ,  G01N2030/647 ,  G01N2030/685 ,  Y10T436/16 ,  Y10T436/18

公开(公告)号：US4421411A

公开(公告)日：1983-12-20

申请号：US261483

申请日：1981-05-07

Applicant: Edward S. Ida

Inventor： Edward S. Ida

IPC: G01N21/31 ,  G01J3/48 ,  G01D5/36

CPC classification number: G01N21/314

Abstract: A spectral photometer including a filter wheel driven by a synchronous motor and an analysis circuit. Interference effects of the power line on the output of the photometer are cancelled by provision of a speed changer to achieve each revolution of the filter wheel in the time required for a set, odd number of power line half-cycles to the motor.

Abstract translation: 一种光谱光度计，包括由同步电动机驱动的滤光轮和分析电路。 通过设置变速器来消除电力线对光度计的输出的干扰效应，以在设定的奇数个电力线半周期到电动机所需的时间内实现滤光轮的每转。

公开(公告)号：US4346992A

公开(公告)日：1982-08-31

申请号：US332827

申请日：1973-02-15

Applicant: Jacob Schwartz

Inventor： Jacob Schwartz

IPC: G01J3/12 ,  G01N21/00 ,  G01J1/42 ,  G01J3/48

CPC classification number: G01J3/12

Abstract: There is herein disclosed a laser detector and spectral analyzer comprising a plurality of photoelectric detector elements, at least, two of which are suitably masked and disposed behind a wedge type interference filter. An additional detector element is operated without any mask or filter. The detector output signals are electronically processed to provide a substantially instantaneous and independent indication of the mean spectral wavelength, spectral width, total power and pulse length of radiant energy incident upon the apparatus.

Abstract translation: 这里公开了一种激光检测器和光谱分析仪，其包括多个光电检测器元件，其中至少两个被适当地屏蔽并设置在楔形干涉滤光器的后面。 在没有任何掩模或过滤器的情况下操作附加的检测器元件。 检测器输出信号被电子处理以提供入射到设备上的辐射能的平均光谱波长，光谱宽度，总功率和脉冲长度的基本瞬时和独立的指示。

公开(公告)号：US4286327A

公开(公告)日：1981-08-25

申请号：US73965

申请日：1979-09-10

Applicant: Robert D. Rosenthal ,  Scott B. Rosenthal

Inventor： Robert D. Rosenthal ,  Scott B. Rosenthal

IPC: G01N21/35 ,  G01N21/01 ,  G01N21/25 ,  G01N21/31 ,  G06F15/20 ,  G01J3/48 ,  G01N21/00

CPC classification number: G01N21/255 ,  Y10S250/91

Abstract: An apparatus for near infrared quantitative analysis with an infrared emitting diode (IRED) source utilizes narrow bandpass filters and silicon detectors to provide highly accurate and inexpensive measurement. A narrow bandpass filter in the light path of the IRED passes wavelengths outside the half power bandwidth points of the IRED. A silicon detector together with a sensitive amplifier is used to accurately measure linearly up to six decades of light sensitivity at desired wavelengths.

Abstract translation: 使用红外发射二极管（IRED）源进行近红外定量分析的设备利用窄带通滤波器和硅检测器来提供高精度和便宜的测量。 IRED的光路中的窄带通滤波器通过IRED的半功率带宽点之外的波长。 硅探测器与灵敏放大器一起用于在所需波长下精确测量六十年的光灵敏度线性。

公开(公告)号：US4181441A

公开(公告)日：1980-01-01

申请号：US858308

申请日：1977-12-07

Applicant: Hans G. Noller

Inventor： Hans G. Noller

IPC: G01N21/55 ,  G01J3/48 ,  G01N21/02

CPC classification number: G01N21/552

Abstract: The present invention encompasses an internal reflectance spectrometer comprising:(a) a prism adaptable for optically coupling test sample to one surface thereof;(b) a means for irradiating the test sample with light of wave length absorbed by the test sample, said means directing light to enter the test sample from the prism surface having test sample thereon at an angle between the critical angle and about 35.degree. less than the critical angle, said light refracted in the test samples so that said light is internally reflected from the test sample remote from the prism surface; and(c) a means for detecting the internally reflected light.The instrument of the present invention is a full range absorbtion spectrometer.

Abstract translation: 本发明包括内反射光谱仪，其包括：（a）适于将测试样品光学耦合到其一个表面的棱镜; （b）用于用测试样品吸收的波长的光照射测试样品的装置，所述装置使光从具有测试样品的棱镜表面以临界角和约35°之间的角度引导进入测试样品 所述光在所述测试样品中折射，使得所述光从所述测试样品内部反射离开所述棱镜表面; 和（c）检测内部反射光的装置。 本发明的仪器是全范围吸收光谱仪。

公开(公告)号：US4176963A

公开(公告)日：1979-12-04

申请号：US740307

申请日：1976-11-09

Applicant: Walter Fabinski ,  Reimar Faulhaber

Inventor： Walter Fabinski ,  Reimar Faulhaber

IPC: G01N21/31 ,  G01N21/27 ,  G01N21/33 ,  G01J3/48 ,  G01J3/46 ,  G01N21/22

CPC classification number: G01N21/33

Abstract: Apparatus for determining the nitrogen oxide concentration in a gaseous mixture while minimizing measuring errors. The radiation from a hollow cathode lamp emitting the nitrogen oxide resonance radiation is modulated by a device for generating alternatively an unfiltered or test beam and a reference beam. The reference beam is filtered by a nitrogen oxide filled filter. An absorption cell is disposed in the path of the reference beam. Further, a monochromator or filter is provided and a detector for receiving the radiation from the monochromator filter. A signal processing unit is coupled to the detector for forming electric signals corresponding to the signal from the unfiltered and the reference beam and for forming the quotient thereof. A ray splitter is disposed in the path of the two beams to provide a different beam path and an additional radiation detector is disposed in the additional path. The signal processing unit has additional means for forming the quotient of the two signals generated by the additional detector and which have not passed the absorption cell. This will then provide an additional quotient of the two available quotients thus minimizing the normally occurring errors.

Abstract translation: 用于确定气体混合物中的氮氧化物浓度同时最小化测量误差的装置。 来自发射氮氧化物共振辐射的空心阴极灯的辐射由用于另外产生未过滤或测试光束和参考光束的装置调制。 参考光束被氮氧化物填充的过滤器过滤。 吸收单元设置在参考光束的路径中。 此外，提供单色仪或滤光器，以及用于接收来自单色器滤光器的辐射的检测器。 信号处理单元耦合到检测器，用于形成对应于未滤波和参考光束的信号的电信号并形成其商。 光束分离器设置在两个光束的路径中以提供不同的光束路径，并且另外的辐射检测器设置在附加路径中。 信号处理单元具有用于形成由附加检测器产生并且没有通过吸收单元的两个信号的商的附加装置。 这将提供两个可用商的附加商，从而最小化正常发生的错误。

公开(公告)号：US4116564A

公开(公告)日：1978-09-26

申请号：US655394

申请日：1976-02-05

Applicant: Serge Renaud ,  Jean-Paul Rubel

Inventor： Serge Renaud ,  Jean-Paul Rubel

IPC: G01N21/82 ,  G01N33/49 ,  G01N21/00 ,  G01J3/48 ,  G01N21/24

CPC classification number: G01N21/82 ,  G01N33/4905

Abstract: The apparatus comprises a massive body accurately maintained at 37.degree. and having a through horizontal bore in which are disposed in succession a bulb, a first concentrating lens, a test tube containing the sample, an interchangeable optical filter, a second concentrating lens and a photo-electric cell. The test tube is disposed in a blind vertical bore of the body and it contains a small stirrer bar resting on its bottom and made of a magnetic material. A permanent magnet, adapted to be operatively associated with the stirrer bar is rotated below the body, co-axially to the bar, by an electric motor at one of two accurately controlled speeds. The output of the cell is amplified and applied to one inlet of a differential amplifier the other inlet of which receives the output of a memory wherein the response of the cell has been registered at the beginning of a test. The outlet signal from the differential amplifier starts therefore from zero and may be applied to a usual graphically recording apparatus. For an aggregation test there is used a green filter and the motor is rotated at substantially 1100 rpm, while for a coagulation test the filter is violet and the motor rotates at 100 rpm.

Abstract translation: 该装置包括精确地保持在37℃并且具有穿过水平孔的大体，其中连续放置灯泡，第一聚焦透镜，容纳样品的试管，可互换的滤光器，第二聚焦透镜和 光电池。 试管设置在主体的盲垂直孔中，并且其包含安装在其底部并由磁性材料制成的小的搅拌棒。 适于与搅拌棒可操作地连接的永磁体通过电动机以两个精确控制的速度之一以电动机同轴旋转到主体下方。 单元的输出被放大并被施加到差分放大器的一个入口，其另一个入口接收存储器的输出，其中单元的响应已经在测试开始时被注册。 因此，来自差分放大器的出口信号从零开始，并且可以应用于通常的图形记录装置。 对于聚合测试，使用绿色过滤器，电机以大约1100rpm旋转，而对于凝结测试，过滤器是紫色的并且电机以100rpm旋转。