公开(公告)号：EP0154875A3

公开(公告)日：1986-03-12

申请号：EP85102028

申请日：1985-02-23

Applicant: BOEHRINGER MANNHEIM GMBH

Inventor： Händler, Erich, Dr.rer.nat. ,  Knoll, Dieter, Dr.rer.nat. ,  Strohmeier, Werner, Dr.rer.nat.

IPC: G01N21/47

CPC classification number: G01N21/474 ,  G01J1/1626 ,  G01J1/36 ,  G01N21/8483 ,  G01N2021/478 ,  G01N2201/062

公开(公告)号：EP0102282A2

公开(公告)日：1984-03-07

申请号：EP83401604.0

申请日：1983-08-02

Applicant: Office National d'Etudes et de Recherches Aérospatiales (O.N.E.R.A.)

Inventor： Gramont, Louis

IPC: G01N21/31 ,  G01J3/08

CPC classification number: G01J1/36 ,  G01N21/314

Abstract: On fait passer un faisceau de rayonnement (10) ayant traversé le mélange contenant le composant et dont la composition spectrale contient au moins une raie caractéristique du composant alternativement suivant deux voies dont l'une comporte une quantité déterminée du composant gazeux et dont l'autre sert de référence. La seconde voie parcourue par le faisceau de rayonnement se limite à un diaphragme (14) présentant une transmission des rayonnements sensiblement égale à celle de la première voie en l'absence dudit composant dans le mélange. On dirige le faisceau de sortie provenant des deux voies vers un détecteur de variation d'intensité du faisceau à travers un filtre (26) de sélection dudit rayonnement caractéristique.

公开(公告)号：EP0084391A2

公开(公告)日：1983-07-27

申请号：EP83200037.6

申请日：1983-01-12

Applicant: PHILIPS ELECTRONICS UK LIMITED ,  Philips Electronics N.V.

Inventor： Stockdale, Trevor John

IPC: G01J3/42 ,  G01N21/31

CPC classification number: G01N21/3103 ,  G01J1/36

Abstract: In atomic absorption spectrophotometers a reference path may be provided for radiation which excludes the flame. This radiation provides a signal from a detector which varies only with the instrumental drift produced by variations in the radiation source brightness and by variations in detector gain. This signal can be used to compensate for drift in signals received via a sample path including the flame. Conventionally, a rapidly rotating chopper alternates the radiation between the two paths during the sample measurement time, reducing the average intensity of radiation available for measurement. With the present invention, radiation passes via the sample path 7 continuously during measurement, and only via the reference path 9, 23, 24, 25, 10 between sample measurements. Movable mirrors 9, 10 shift the radiation between the paths on commands applied externally 30. Conveniently the reference path measurement is made while the flame is stabilising during the change between samples. The reference path measurements are stored and used to correct for drift.

公开(公告)号：EP0014375A2

公开(公告)日：1980-08-20

申请号：EP80100317.9

申请日：1980-01-22

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： De Steur, Hubert ,  Vandenbossche, Chris, Dipl.-Chem. ,  Heyneman, Guido

IPC: G01J3/42

CPC classification number: G01J1/36

Abstract: Die Erfindung betrifft ein Zweistrahl-Wechsellicht-Kolorimeter, bei dem der von einer Beleuchtungsoptik (2) kommende Meßstrahl (8) mit Hilfe eines Steuerorgans und feststehender Spiegel (10, 14) im Wechsel auf eine erste Meßküvette (9) und darauffolgend durch eine zweite Meßküvette (15) auf ein gemeinsames Fotoelement (11) abgelenkt wird, welches mit einer Meß- und Auswerteschaltung (16) in Verbindung steht. Ein besonders einfacher und störunanfälliger Aufbau wird dadurch erreicht, daß das Steuerorgan ein in den Strahlengang des Meßstrahls (8) einschwenkbarer Spiegel (10) ist, der den von der Lichtquelle (3) erzeugten Meßstrahl um 90° ablenkt.

Abstract translation: 公开了一种双光束交替光色度计，其中通过具有快门的透镜系统的光束由旋转镜周期性地偏转。 在可枢转镜的第一非偏转位置中，产生通过第一测量池并被引导到公共光电池的第一测量光束。 在反射镜的第二偏转位置中，产生第二测量光束，其被引导通过第二测量单元到相同的光电池。 来自光电池的信号通过受控的开关元件连接到模拟存储器。 提供了一种连接到模拟存储器的输出端以及光电池的计算电路。 当镜子处于非偏转位置时，开关元件将第一测量信号连接到模拟存储器，并且当镜子处于偏转位置时，开关元件打开。 计算电路比较对应于第一和第二测量光束的信号。

公开(公告)号：US4921351A

公开(公告)日：1990-05-01

申请号：US240617

申请日：1988-09-06

Applicant: Taiji Kohigashi ,  Miki Koyama

Inventor： Taiji Kohigashi ,  Miki Koyama

IPC: G01J1/16 ,  G01J1/36 ,  G01J3/10 ,  G01J3/42 ,  G01N21/47

CPC classification number: G01J3/42 ,  G01N21/474 ,  G01J1/36 ,  G01J2001/1642 ,  G01J2003/425 ,  G01N2201/065 ,  G01N2201/0696

Abstract: The present invention is drawn to a spectrophotometer using a pulsed xenon flashtube as a light source. The energy to be applied to the light source of the spectrophotometer is set within a range of 0.03 joules to 1.0 joule. Therefore, the intensity of light emitted from the light source is not too great, which allows the spectrophotometer to measure a spectral reflectance under the presence of natural light or equivalents thereof. Further, the charging period of time required for the spectrophotometer to provide a desired light emission intensity is short, so that the light source is capable of emitting many flashes of light per second, wherein the amount of data produced within a predetermined measuring period is increased. Thus, accurate data can be generated.

公开(公告)号：US4831319A

公开(公告)日：1989-05-16

申请号：US117122

申请日：1987-11-04

Applicant: Winfried Heinrich ,  Horst Pawlik ,  Nikolaus Schmidt

Inventor： Winfried Heinrich ,  Horst Pawlik ,  Nikolaus Schmidt

IPC: G01J3/06 ,  G01J1/36 ,  G01J1/44 ,  H03L7/00

CPC classification number: G01J1/36 ,  G01J2001/4242

Abstract: A method for the phase synchronization of equipment controlled by stepping drives, especially optical modulating systems for multiple-beam spectral photometers. Each time that the equipment is started up, a reference signal is made synchronous with a synchronizing signal which is derived from a sensor signal of the apparatus which is locked in phase with the intelligence signal. For a purely electrical correction the phasing between the intelligence signals and the synchronizing signal is set once. In the event of a phasing error between the synchronizing signal and the reference signal the reference signal is reset.

Abstract translation: 一种用于由步进驱动器控制的设备的相位同步的方法，特别是用于多光束光谱光度计的光学调制系统。 每当设备启动时，参考信号与从与智能信号锁定的设备的传感器信号导出的同步信号同步。 对于纯电校正，智能信号和同步信号之间的相位被设定为一次。 在同步信号和参考信号之间出现定相误差的情况下，参考信号被复位。

公开(公告)号：US4739167A

公开(公告)日：1988-04-19

申请号：US875857

申请日：1986-06-18

Applicant: Heinz Riegler

Inventor： Heinz Riegler

IPC: G01J3/08 ,  G01J1/36 ,  G02B26/04

CPC classification number: G01J1/36

Abstract: Device for synchronous modulation, synchronous light-path switch-over and control-signal derivation for step-drive controlled modulation and switch-over devices, especially for multibeam spectral analysis equipment and preferably for the infrared region of the spectrum, in which the radiation modulation is effected by a rotating light stop and the light path switch-over between a measuring beam and a reference beam is effected by pivoting mirrors. The device provides for the use of only a single photosensor. The synchronization between the stepping motor for moving the light stop and the stepping motors for moving the mirrors is effected via a counting logic and common clocking. Moreover, set pulses are generated to set the mirrors in defined positions, and control signals are generated for further processing.

Abstract translation: 用于步进驱动控制调制和切换装置的同步调制，同步光路切换和控制信号导出装置，特别是用于多光谱光谱分析设备，优选用于光谱的红外区域，其中辐射调制 通过旋转的光停止来实现，并且测量光束和参考光束之间的光路切换通过枢转反射镜来实现。 该设备仅使用单个光电传感器。 用于移动光停止的步进电机和用于移动反射镜的步进电机之间的同步通过计数逻辑和通用时钟来实现。 此外，产生设置脉冲以将反射镜设置在限定位置，并且产生控制信号用于进一步处理。

公开(公告)号：US4719352A

公开(公告)日：1988-01-12

申请号：US844017

申请日：1986-03-25

Applicant: Kimio Miyatake ,  Kenji Takeda

Inventor： Kimio Miyatake ,  Kenji Takeda

IPC: G01N21/35 ,  G01J1/36 ,  G01N21/3504 ,  G01N21/61 ,  G02B26/04

CPC classification number: G02B26/04 ,  F16C25/083 ,  G01J1/36 ,  F16C19/548 ,  F16C2370/00

Abstract: An apparatus for intermitting beams of light for use in a gas analyzer in which a rotary shaft of a chopper is supported by first and second ball bearings. An outside ring of the first ball bearing is fixedly mounted on a bearing housing and either an inside ring or an outside ring of the second ball bearing is adapted to be movable in the thrust or axial direction relative to the rotary shaft, whereby the second ball bearing is movably energized in the thrust direction by an elastic member to eliminate shake of the rotary shaft due to play in the ball bearings and thus reduce modulation noise to improve measuring accuracy of the gas analyzer.

Abstract translation: 一种用于隔离用于气体分析器的光束的装置，其中斩波器的旋转轴由第一和第二球轴承支撑。 第一球轴承的外圈固定地安装在轴承座上，并且第二球轴承的内圈或外圈适于在相对于旋转轴的推力或轴向方向上可移动，由此第二球 轴承通过弹性构件在推力方向上可移动地通电，以消除由于球轴承中的冲击而引起的旋转轴的晃动，并因此降低调制噪声，从而提高气体分析仪的测量精度。

公开(公告)号：US4614434A

公开(公告)日：1986-09-30

申请号：US615863

申请日：1984-05-31

Applicant: Henry H. Welch ,  Corindo Felici

Inventor： Henry H. Welch ,  Corindo Felici

IPC: G01J1/36 ,  G01J3/12 ,  G01N21/31 ,  G01J3/51

CPC classification number: G01N21/31 ,  G01J1/36 ,  G01J2003/123 ,  G01N2201/12723

Abstract: The object of this invention is a double multichromatic photometer including a single light-source and a single detector, particularly for the determination of chemical and clinical analyses, in which the photometer light comes from a single light-source which radiates along three distinct optical paths that converge onto a single detector; two of the optical paths are the first and the second measuring channels, which are alternatively excluded whereas the third optical path is for reference purposes. An optical collimation assembly and a measurement cuvette are inserted into each of the two measuring optical paths or channels. Within said three optical paths is inserted a rotating drum, said drum holds a number of interference filters, allowing the third reference optical path to pass freely, and inserts one filter at a time into one or the other of the two measuring optical paths. Moreover, a rotating shutter controlled by a motor is also provided for the reference optical path, said shutter coordinately rotates with the filter-bearing drum. An opto-electronic assembly, including printed circuit boards and optical couplers are provided for the selection of filters and the measuring channel.

Abstract translation: 本发明的目的是双重多色光度计，其包括单个光源和单个检测器，特别用于确定化学和临床分析，其中光度计光源自沿着三个不同光学路径辐射的单个光源 汇聚到单个检测器上; 光路中的两个是第一测量通道和第二测量通道，其被替换地排除，而第三光路用于参考目的。 光学准直组件和测量试管插入到两个测量光路或通道中的每一个中。 在所述三个光路内插入旋转鼓，所述鼓保持多个干涉滤光片，允许第三参考光路自由通过，并且一次插入一个滤光片到两个测量光路中的一个或另一个。 此外，还为参考光路提供由电动机控制的旋转快门，所述挡板与过滤器承载滚筒协调地旋转。 提供包括印刷电路板和光耦合器的光电组件用于选择滤波器和测量通道。

公开(公告)号：US4508451A

公开(公告)日：1985-04-02

申请号：US450489

申请日：1982-12-16

Applicant: Trevor J. Stockdale

Inventor： Trevor J. Stockdale

IPC: G01J1/36 ,  G01N21/31 ,  G01J3/42 ,  G01N21/72

CPC classification number: G01N21/3103 ,  G01J1/36

Abstract: In atomic absorption spectrophotometer, a reference path may be provided for radiation which excludes the flame. This radiation provides a signal from a detector which varies only with the instrumental drift produced by variations in the radiation source brightness and by variations in detector gain. The signal can be used to compensate for drift in other signals received through a sample path including the flame. In the present invention, radiation passes through the sample path continuously during measurement, and only through the reference path between sample measurements. Movable mirrors shift the radiation between the paths upon externally applied commands. Conveniently, the reference path measurement is made while the flame is stabilized during the change between samples. The reference path measurements are stored and used to correct for drift.

Abstract translation: 在原子吸收分光光度计中，可以提供不包括火焰的辐射的参考路径。 这种辐射提供来自检测器的信号，其仅随着辐射源亮度的变化和检测器增益的变化产生的仪器漂移而变化。 该信号可用于补偿通过包括火焰的采样路径接收的其他信号中的漂移。 在本发明中，辐射在测量期间连续通过样品路径，并且仅通过样品测量之间的参考路径。 可移动的镜子在外部施加的命令之间使辐射在路径之间移动。 方便地，在样品间的变化期间火焰稳定时进行基准路径测量。 参考路径测量被存储并用于校正漂移。