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    COLOUR MONITORING
    65.
    发明授权
    COLOUR MONITORING 失效
    色彩控制。

    公开(公告)号：EP0477300B1

    公开(公告)日：1994-06-01

    申请号：EP90917755.2

    申请日：1990-06-15

    Applicant: Secretary of State for Defence in Her Britannic Majesty's Gov. of the United Kingdom of Great Britain and Northern Ireland

    Inventor： JAWAD, Sajad Mohammed ,  ALDER, John Frederick

    IPC: G01J3/50

    CPC classification number: G01N21/255 ,  G01J2001/1636 ,  G01J2001/444 ,  G01J2001/446 ,  G01N21/274 ,  G01N21/783 ,  G01N2201/0695 ,  G01N2201/082 ,  G01N2201/12753

    Abstract: Colour changes in a target, such as a chemical sensor using a colour-changing indicator reagent to detect the presence of a poisonous gas, are continuously monitored by reflecting the target (10) on to a sensor (16) light originating from first one and then another light source (12a, 12b, etc), each having a different, known emission wavelength. In each cycle, direct light from the appropriate source is also collected by another sensor (14), connected in a closed loop (26) with circuitry in which the emission intensity is compared with a known reference value (38) and which adjusts the emission intensity so as to stabilise it at this constant reference value. Once this is stabilised, the reflected light intensity signal is passed to a data store (20), after which a divider (22) produces an output signal (36) representing the ratio of the reflected light intensities in two separate cycles originating from two different light sources (12a, 12b, etc). The conduct of each cycle is controlled by timing means (18). Where there are two light sources, the wavelength of the second (12b) is outside the response range of the target, that of the first (12a) being at or near the peak target response, so that all the divider output signals represent successive values of actual reflected light intensity. These signals can be processed to show the rate of colour change in the target and used to operate e.g. an alarm.

    Optical photometry system
    66.
    发明公开
    Optical photometry system 失效
    光学光学系统

    公开(公告)号：EP0533333A3

    公开(公告)日：1993-07-28

    申请号：EP92307104.7

    申请日：1992-08-04

    Applicant: TEXACO DEVELOPMENT CORPORATION

    Inventor： Brost, Dale Francis ,  Rexach, Frank Manuel ,  Winslow, Gregory Arthur

    IPC: G01N21/85 ,  G01N21/17 ,  G01J3/10

    CPC classification number: G01N21/8507 ,  G01N2201/082 ,  G01N2201/127

    Abstract: A system for on-line analysis of industrial fluid streams is capable of absorption, fluorescence and reflectance measurements at single wavelengths in the ultra-violet, visible and near infra-red spectral ranges. An optical fiber cable couples light pulses from an excitation light source (20) to a probe (12) in the fluid, couples light sensed by the probe to a photodetector (32), and couples light pulses from a reference light source (34) to the photodetector (32). The signals from the photodetector are combined to provide a response signal representative of a characteristic of the fluid in a manner independent of light source intensity, photodetector sensitivity, and temperature over a wide range.

    Slide analysis system
    67.
    发明公开
    Slide analysis system 失效
    Vorrichtung zurProbenträger-Analyze。

    公开(公告)号：EP0458138A2

    公开(公告)日：1991-11-27

    申请号：EP91107563.8

    申请日：1991-05-09

    Applicant: MILES INC.

    Inventor： Kerr, Alexander F. ,  Mernyk, Edwin H. ,  Zabetakis, George E. ,  Escoli, Uri

    IPC: G01N35/00

    CPC classification number: G01N35/00029 ,  G01J3/2803 ,  G01N35/025 ,  G01N2035/00039 ,  G01N2035/00089 ,  G01N2035/00138 ,  G01N2035/00356 ,  G01N2035/00752 ,  G01N2035/103 ,  G01N2035/1086 ,  G01N2201/082 ,  Y10T436/113332 ,  Y10T436/114998

    Abstract: The slide analysis system (10) includes a slide holding module (12) spaced from an incubator module (14). A slide transfer device (18) or pick and place mechanism withdraws slides (28) from the slide holding module (12) and inserts them into the incubator module (14). A metering device (16) deposits serum onto a slide that is held in a spotting position by the slide transfer device (18). The metering device (16) is movable to a sampling position in the slide holding module to aspirate serum from a serum source on the slide cartridge in the slide holding module (12) and is also movable to a spotting position to spot serum on the slide held by the slide transfer device (12). The slide transfer device (12) has rotational as well as transverse movement and includes jaws (257) for gripping onto the sides of slides to withdraw a single slide from a cartridge (24), transport it to the incubator (14), insert the slide in the incubator and thereafter remove it from the incubator. The metering device (16) also has rotational as well as elevational movement and includes a built-in pipette tip ejector (430) for discarding a used pipette tip (70).

    Abstract translation: 载玻片分析系统（10）包括与培养箱模块（14）间隔开的滑块保持模块（12）。 滑块传送装置（18）或拾取和放置机构从滑块保持模块（12）中取出滑块（28）并将其插入培养箱模块（14）中。 计量装置（16）将血清沉积在由滑块传送装置（18）保持在点样位置的滑块上。 计量装置（16）可移动到载玻片保持模块中的采样位置，以从滑动保持模块（12）中的滑动卡盘上的血清源吸出血清，并且也可移动到点样位置以在载玻片上点出血清 由滑块传送装置（12）保持。 滑动传送装置（12）具有旋转和横向运动，并且包括用于夹持在滑块的侧面上的夹爪（257），以从筒（24）中抽出单个滑动件，将其运送到培养箱（14），将 在培养箱中滑动，然后将其从培养箱中取出。 计量装置（16）还具有旋转和升降运动，并且包括用于丢弃用过的移液管吸头（70）的内置移液管吸头（430）。

    Vorrichtung zur Messung der Partikelbelastung im Rauch- oder Abgas eines Verbrennungsprozesses
    68.
    发明公开
    Vorrichtung zur Messung der Partikelbelastung im Rauch- oder Abgas eines Verbrennungsprozesses 失效
    Vorrichtung zur Messung der Partikelbelastung im Rauch- oder Abgas eines Verbrennungsprozesses。

    公开(公告)号：EP0370248A1

    公开(公告)日：1990-05-30

    申请号：EP89119706.3

    申请日：1989-10-24

    Applicant: ROBERT BOSCH GMBH

    Inventor： Grob, Ferdinand ,  Kienzler, Dieter ,  Linder, Ernst ,  Potschin, Roger ,  Stutzenberger, Heinz, Dr.

    IPC: G01N21/53 ,  G01N21/15

    CPC classification number: G01N21/534 ,  G01N21/15 ,  G01N2021/0314 ,  G01N2021/151 ,  G01N2201/082

    Abstract: Eine Vorrichtung zur Messung der Partikelbelastung im Rauch- oder Abgas eines Verbrennungsprozesses weist einen zwischen einem optischen Sender (41) und einem optischen Empfänger (42) ausgesendeten Lichtstrahl auf, der durch zwei einander diametral gegnüberliegende, mit lichtdurchlässigen Körpern (29,30) verschlossene Lichtdurchtrittsöffnungen (16,17) in der Wand eines Abgasrohres (15) hindurchtritt und einen in dem Abgasrohr (15) geführten Abgasstrom durchquert. Die Intensitätsschwächung des Lichtstrahls ist ein Maß für die Partikelbelastung. Bei Verwendung der Meßvorrichtung zur Messung der Rußkonzentration im Abgas von Brennkraftmaschinen von Fahrzeugen wird diese unmittelbar am Auspuffrohr (15) angebracht, und die lichtdurchlässigen Körper (29,30) werden im Bereich der vom Abgasstrom beaufschlagten Flächen auf eine über der Rußabbrandtemperatur liegende Temperatur aufgeheizt. Hierdurch wird eine Meßwertverfälschung durch Rußablagerungen in der Meßstrecke auf den lichtdurchlässigen Körpern (29,30) verhindert und ein kontinuierlicher Betrieb der Meßvorrichtung sichergestellt.

    Abstract translation: 用于测量燃烧过程的烟气或废气中的颗粒水平的装置具有在光发射器（41）和光接收器（42）之间发射的光束，该光束穿过两个直径相对的光通道开口（16 ，17）放置在排气管（15）的壁中，所述透光开口由透明体（29,30）密封，并且穿过在排气管（15）中输送的废气流。 光束强度被衰减的程度是粒子水平的量度。 当使用用于测量车辆内燃机的废气中的烟灰浓度的测量装置时，该测量装置直接附接到排气管（15），并且透明体（29,30）被加热 排放气体流入的面的区域到达烟炱燃烧温度之上的温度。 因此防止由于透明体（29,30）上的测量部分中的烟灰沉积而导致的测量值的伪造，并且确保了测量装置的连续操作。

    Improved pulse light system fluorometer
    69.
    发明公开
    Improved pulse light system fluorometer 失效
    荧光计。

    公开(公告)号：EP0241268A2

    公开(公告)日：1987-10-14

    申请号：EP87303016.7

    申请日：1987-04-07

    Applicant: SCLAVO INC.WEST COAST

    Inventor： Gifford, Charles R. ,  Bigliardi, Achille M.

    IPC: G01N21/64

    CPC classification number: G01N21/255 ,  G01N21/6428 ,  G01N21/645 ,  G01N2021/6482 ,  G01N2201/064 ,  G01N2201/0642 ,  G01N2201/0696 ,  G01N2201/0698 ,  G01N2201/082

    Abstract: There is disclosed herein a reference system for a fluorometer designed to detect very low levels of materials tagged with fluorophores. There is also disclosed an optical system for use in such a system which improves the signal to noise ratio. The reference system utilizes pulsed arc light excitation which excitation pulses are directed onto a flow cell containing the fluorescent dye. Fluorescent light emitted from the dye is guided to a photomultiplier tube which converts it to electrical pulses. A portion of each excitation light pulse is guided by a light pipe onto a PIN diode light detector which converts these light signals to electrical pulses. A LED reference light source is pulsed to generate a plurality of reference light pulses one of which occurs between each excitation pulse. A portion of each of these pulses is guided to each of the two light detectors and two more series of electrical pulses are generated. A microprocessor then reads the four electrical pulses resulting from each pair of light pulses and performs a computation on the resulting numbers which indicates the relative concentration of the target concentration being assayed. The optical system masks the excitation light pulses and the emitted light pulses to minimize the amount of scattered excitation light than gets into the emitted light optical channel and to control the location and size of the image projected onto the photomultiplier tube to stabilize its output signal. The light pipe and an output lens spatially integrates the image of the excitation light mask and focusses this light on the PIN diode so that the dancing image of the arc does not wander off the face of the PIN diode and destabilize its output signal. The action of the flow cell fluid contents spatially integrates the fluorescent light thereby helping to stabilize the output of the photomultiplier tube.

    Abstract translation: 在此公开了一种用于检测用荧光团标记的非常低水平的材料的荧光计的参考系。 还公开了一种用于这种提高信噪比的系统中的光学系统。 参考系统利用脉冲弧光激发，激发脉冲被引导到含有荧光染料的流动池上。 从染料发出的荧光被引导到光电倍增管，将其转换成电脉冲。 每个激发光脉冲的一部分由光管引导到PIN二极管光检测器上，PIN检测器将这些光信号转换成电脉冲。 LED参考光源被脉冲以产生多个参考光脉冲，其中一个发生在每个激励脉冲之间。 这些脉冲中的每一个的一部分被引导到两个光检测器中的每一个，并且产生两个更多的串联的电脉冲。 然后，微处理器读取由每对光脉冲产生的四个电脉冲，并对所得数字进行计算，这表明所测定的目标浓度的相对浓度。 光学系统掩蔽激发光脉冲和发出的光脉冲，以使散射的激发光的量比进入发射的光通道最小化，并且控制投影到光电倍增管上的图像的位置和尺寸以稳定其输出信号。 光管和输出透镜在空间上对激发光掩模的图像进行空间积分，并将该光聚焦在PIN二极管上，使得电弧的跳舞图像不会从PIN二极管的表面漂移并使其输出信号失稳。 流动池流体内容物的作用在空间上整合荧光，从而有助于稳定光电倍增管的输出。

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