公开(公告)号：US5073345A

公开(公告)日：1991-12-17

申请号：US753370

申请日：1985-07-09

Applicant: Raymond P. W. Scott ,  Gary J. Schmidt

Inventor： Raymond P. W. Scott ,  Gary J. Schmidt

IPC: G01N21/05 ,  G01N21/25 ,  G01N21/85 ,  G01N30/02 ,  G01N30/74 ,  G01N30/84

CPC classification number: G01N30/74 ,  G01N21/85 ,  G01N2021/0346 ,  G01N2030/746 ,  G01N21/05 ,  G01N2201/0621 ,  G01N30/02 ,  G01N30/84

Abstract: A light absorption detector includes a light source substantially adjacent a window of a chromatogrpahic flow cell. The flow cell is defined by a housing member which also includes a photo-sensitive detector.

Abstract translation: 光吸收检测器包括基本上邻近色谱流动池的窗口的光源。 流动池由还包括光敏检测器的壳体构件限定。

公开(公告)号：US5046842A

公开(公告)日：1991-09-10

申请号：US626024

申请日：1990-12-12

Applicant: Shigeru Miyata ,  Yoshitaka Yamada

Inventor： Shigeru Miyata ,  Yoshitaka Yamada

IPC: G01N21/43

CPC classification number: G01N21/43 ,  G01N2201/0621

Abstract: A mixing ratio detecting device for composite liquid has a transparent column placed so that a bottom of the column is in contact with a mixing liquid, and a light emitting diode disposed so that light beams therefrom are incident on one side of the column to pass therethrough so as to impinge on an interface between the bottom of the column and the mixing liquid. The light beams impinged on the interface less than a critical angle are refracted, while the light beams impinged on the interface more than the critical angle totally reflected to escape from other side of the column. A photo diode is provided to receive the light beams escaped from the other side of the column so as to generate an output. An effective photo-receiving area of the photo diode is in the form of an inversed trapezoid to compensate for characteristics of the output from the photo diode.

公开(公告)号：US5044756A

公开(公告)日：1991-09-03

申请号：US325698

申请日：1989-03-13

Applicant: Lawrence D. Gaultney ,  George E. Van Scoyoc ,  Darrell G. Schulze ,  Jason L. Shonk

Inventor： Lawrence D. Gaultney ,  George E. Van Scoyoc ,  Darrell G. Schulze ,  Jason L. Shonk

IPC: G01N21/47 ,  G01N21/85 ,  G01N33/24

CPC classification number: G01N21/8507 ,  G01N21/4738 ,  G01N33/24 ,  G01N2021/855 ,  G01N2201/0216 ,  G01N2201/0621 ,  G01N2201/069 ,  G01N2201/1241

Abstract: An apparatus for attachment to a vehicle for sensing the organic matter content of soil at a soil scene as it is moved through the soil by the vehicle has a probe including a housing, a light source and a light sensor. The light sensor senses the light reflected from the soil scene and produces an output signal which is related to the organic matter content of the soil at the soil scene. The housing is attached to the vehicle so that as it is moved through the soil the soil scene that is observed by the light sensor is beneath the surface of the surrounding soil and the housing shields the soil scene from ambient light. The apparatus also includes a processor which processes the signal from the light sensor using data predetermined from a particular landscape which includes the soil to be sensed.

Abstract translation: 一种用于附接到车辆的装置，用于感测土壤场面当土壤通过车辆移动时的土壤的有机物含量，其具有包括壳体，光源和光传感器的探针。 光传感器感测从土壤场景反射的光，并产生与土壤场面土壤有机质含量有关的输出信号。 外壳附着在车辆上，使得当它被移动通过土壤时，由光传感器观察到的土壤场景在周围土壤的表面之下，并且外壳将土壤场景遮蔽环境光。 该装置还包括处理器，其使用从包括要感测的土壤的特定景观预定的数据处理来自光传感器的信号。

公开(公告)号：US4999514A

公开(公告)日：1991-03-12

申请号：US414609

申请日：1989-09-28

Applicant: Peter L. Silveston

Inventor： Peter L. Silveston

IPC: G01N15/06 ,  G01N21/53 ,  G01N21/85

CPC classification number: G01N21/532 ,  G01N21/8507 ,  G01N2201/0621

Abstract: A turbidity meter has a sensor unit supported in a fluid under test with a light source and at least two light sensors supported so that one light sensor is in line with the source to receive transmitted light and the remaining sensor or sensors are arranged to receive light scattered by the fluid. Both the source and the sensors have flow forming chambers connected to a source of pressurized fluid so that a thin layer of this fluid is caused to flow over lenses of the source and sensors to prevent deposition of material from the fluid under test. The signals from the sensors are digitized, and the intensity of the source is digitally controlled to maintain at least one of sensor signals within a suitable range, thus enabling operation over a wide range of turbidities, and automatic selection of turbidimetric and nephelometric modes of operation as appropriate.

公开(公告)号：US4985205A

公开(公告)日：1991-01-15

申请号：US456144

申请日：1989-12-27

Applicant: Rainer Fritsche ,  Klaus Nohl ,  Klaus Pollmann ,  Elmar Schmidt

Inventor： Rainer Fritsche ,  Klaus Nohl ,  Klaus Pollmann ,  Elmar Schmidt

IPC: G01N21/78 ,  G01N21/86 ,  G01N31/22 ,  G01N35/00 ,  G01N35/02

CPC classification number: G01N21/8483 ,  G01N35/00029 ,  G01N2021/478 ,  G01N2021/8488 ,  G01N2035/00128 ,  G01N2035/00376 ,  G01N2201/0621 ,  Y10T436/11

Abstract: Test carrier analysis system for the analytical determination of a component of a sample fluid, in particular of a body fluid. The system comprises test carriers (1) with a color formation layer (5) which is attached movably to the test carrier. The color formation layer is in the initial state of the test carrier not in fluid contact with a fluid reservoir layer (4) likewise attached to the test carrier, but can be pressed against the latter by external manipulation. The system also incorporates an evaluation apparatus with a pressure element (10a) for the pressing of the color formation layer (5) and a control unit (25) for controlling the apparatus functions. In order to improve the analytical determination as regards simplicity of handling and accuracy of the analysis, the reference measurement and the sample measurement are under the control of the control unit (25) carried out in turn on the color formation layer serving as reference surface by means of the same optical unit (1), after the color formation layer has been pressed against the fluid reservoir layer (4) by means of the pressure element (10a).

Abstract translation: 用于分析测定样品流体，特别是体液的组分的测试载体分析系统。 该系统包括具有可移动地连接到测试载体的着色层（5）的测试载体（1）。 颜色形成层处于测试载体的初始状态，不与同样附着到测试载体的流体储存层（4）流体接触，而是可以通过外部操作而被压在后者上。 该系统还包括具有用于压色成色层（5）的压力元件（10a）和用于控制装置功能的控制单元（25）的评估装置。 为了改进关于处理简单性和分析精度的分析确定，参考测量和样品测量在控制单元（25）的控制下，依次通过用作参考表面的成色层进行控制 在通过压力元件（10a）将着色层压在流体储存层（4）上之后，相同的光学单元（1）的装置。

公开(公告)号：US4838698A

公开(公告)日：1989-06-13

申请号：US33065

申请日：1987-03-31

Applicant: Hiromitsu Ishii ,  Takashi Ono

Inventor： Hiromitsu Ishii ,  Takashi Ono

IPC: G01N21/59 ,  G01J1/16 ,  G01J1/46 ,  G01N21/53 ,  G01R19/10 ,  G08B17/10 ,  G08B17/103

CPC classification number: G01N21/534 ,  G08B17/103 ,  G01J1/46 ,  G01J2001/1636 ,  G01N2021/1751 ,  G01N2201/0621 ,  G01N2201/0696 ,  G08B17/113

Abstract: An extinct type detector which detects and determines a concentration or density of a gas or vapor in a space on the basis of an attenuation of light due to the gas or vapor present within the space.The detector of this feature of the invention operates in such a way that the light emitting device is periodically driven to effect light emission, the first and the second photodetector devices receive the light from said light emitting device, the first and second storage means corresponding to the first and the second photodetector devices, respectively, cumulatively store the outputs from the respective photodetector devices, a difference in cumulative storage values between the first and the second storage means is detected to determine a concentration and density of the gas or vapor within the detecting space based on the detected difference.

Abstract translation: 一种灭绝型检测器，其基于由空气中存在的气体或蒸气引起的光的衰减来检测并确定空间中的气体或蒸汽的浓度或密度。 本发明的这个特征的检测器以这样的方式工作，使得发光器件被周期性地驱动以实现光发射，第一和第二光电检测器件接收来自所述发光器件的光，第一和第二存储装置对应于 第一和第二光电检测器装置分别累积地存储来自各个光检测器件的输出，检测第一和第二存储装置之间的累积存储值的差异，以确定检测中的气体或蒸气的浓度和密度 基于检测到的差异空间。

公开(公告)号：US4834533A

公开(公告)日：1989-05-30

申请号：US22954

申请日：1987-03-06

Applicant: Masanori Horike ,  Yutaka Ebi ,  Michio Umezawa

Inventor： Masanori Horike ,  Yutaka Ebi ,  Michio Umezawa

IPC: B41J2/175 ,  G01N21/41 ,  G01N21/43

CPC classification number: G01N21/431 ,  G01N2021/414 ,  G01N2021/432 ,  G01N2201/0621

Abstract: An apparatus for measuring the refractive index of liquid particularly suitable for use in an ink-jet printing system is provided. The apparatus includes a light emitting diode and a photodiode which are optically coupled by an optical fiber which in turn is partly immersed in a liquid to be measured. In one aspect, the wavelength of light emitted from the light emitting diode is so set to be outside a light absorption wavelength range of the liquid to be measured. In another aspect, provision is made of a temperature dependent resistor which changes its electrical resistance depending on the temperature of the liquid to be measured so as to vary the level of the driving current to be applied to the light emitting diode thereby varying the amount of light to be emitted.

Abstract translation: 提供一种用于测量特别适用于喷墨打印系统的液体的折射率的装置。 该装置包括发光二极管和光电二极管，其通过光纤光学耦合，光纤又部分浸没在待测液体中。 在一个方面，从发光二极管发射的光的波长被设定为待测量液体的光吸收波长范围之外。 在另一方面，提供一种温度依赖性电阻器，其根据待测液体的温度改变其电阻，以改变施加到发光二极管的驱动电流的电平，从而改变 要发射的光。

公开(公告)号：US4808813A

公开(公告)日：1989-02-28

申请号：US859563

申请日：1986-05-05

Applicant: Robert J. Champetier

Inventor： Robert J. Champetier

IPC: G01N21/88 ,  G01N21/94 ,  G01N21/958 ,  H01J5/16 ,  G01N21/16

CPC classification number: G01N21/94 ,  G01N2201/0621 ,  G01N2201/08

Abstract: Contamination, either in the form of particulate matter (46), e.g., dust and non-wetting liquid, or surface discontinuities (48), such as a smooth film or cratering, is collected on an explosed glass plate (12). Illumination at an angle incident with respect to a surface (14) of the glass plate causes the particulate matter to scatter light. A further light source illuminates the inside volume of the glass, causing light to scatter from the surface discontinuities. Either source of light scattering is detected by an optically sensitive detector (18) positioned beneath the glass plate. A bandpass filter (24) between the glass plate and the detector rejects spurious radiation.

Abstract translation: 在爆炸的玻璃板（12）上收集以颗粒物（46）的形式（例如灰尘和非润湿液体）或表面不连续（例如光滑膜或凹坑）的污染物。 相对于玻璃板的表面（14）入射的角度的照明导致颗粒物质散射光。 另一个光源照亮玻璃的内部体积，导致光从表面不连续点散射。 任何一种光散射来自位于玻璃板下面的光敏检测器（18）检测。 玻璃板和检测器之间的带通滤光器（24）会抑制杂散辐射。

公开(公告)号：US4750838A

公开(公告)日：1988-06-14

申请号：US920436

申请日：1986-10-20

Applicant: Alfons J. De Wolf ,  Robert F. Janssens

Inventor： Alfons J. De Wolf ,  Robert F. Janssens

IPC: G01N21/47 ,  G01N21/27 ,  G03G15/00 ,  G03G15/06 ,  G03G15/08 ,  G01N21/00 ,  G01N21/55

CPC classification number: G01N21/27 ,  G03G15/5041 ,  G01N21/4738 ,  G01N2201/0621 ,  G03G2215/00042

Abstract: An optoelectric circuit for measuring the different optical densities of an image carrier, a toned test patch in an otherwise untoned imaging area of a photoconductor surface in a xerographic apparatus, wherein a LED (46) irradiates a test area of the surface, a phototransistor (47) receives radiation reflected from the text area, an amplifier (51) amplifies the output signal of the phototransistor, the LED is driven by the amplified output current of the phototransistor, and the current through the LED is used as a measure of the optical density.

Abstract translation: 一种用于测量图像载体的不同光密度的光电路，在静电印刷设备中的感光体表面的另外未调色的成像区域中的调色测试贴片，其中LED（46）照射表面的测试区域，光电晶体管 47）接收从文本区域反射的辐射，放大器（51）放大光电晶体管的输出信号，LED由光电晶体管的放大输出电流驱动，并且通过LED的电流被用作光学测量 密度。

公开(公告)号：US4725148A

公开(公告)日：1988-02-16

申请号：US739319

申请日：1985-05-30

Applicant: Isao Endo ,  Teruyuki Nagamune ,  Ichiro Inoue ,  Kozo Inoue ,  Tadashi Nohira ,  Ikuzo Kagami ,  Tatsuya Iwakura

Inventor： Isao Endo ,  Teruyuki Nagamune ,  Ichiro Inoue ,  Kozo Inoue ,  Tadashi Nohira ,  Ikuzo Kagami ,  Tatsuya Iwakura

IPC: G01N21/59 ,  G01N21/53 ,  G01N21/85 ,  G01N21/84

CPC classification number: G01N21/8507 ,  G01N21/534 ,  G01N2201/0621 ,  G01N2201/0631 ,  G01N2201/064

Abstract: In a turbidimeter for measuring a turbidity of a test solution to be measured i.e. culture solution in a fermentation apparatus, a semiconductor laser diode and a semiconductor photodiode are integrally arranged in a detection portion of the turbidimeter in such a manner that a laser beam emitted from the semiconductor laser diode is made incident upon the semiconductor photodiode through the test solution. Moreover, a protection circuit for the semiconductor laser diode and the semiconductor photodiode is also arranged in the turbidimeter to cut off a current flowed therethrough when an environmental temperature becomes above a predetermined temperature. Therefore, the turbidimeter can be made small in size and light in weight, and the turbidity can be measured accurately over wide range.

Abstract translation: 在浊度计中，用于测量待测试的测试溶液的浊度，即发酵设备中的培养溶液，半导体激光二极管和半导体光电二极管一体地布置在浊度计的检测部分中，使得从 半导体激光二极管通过测试溶液入射到半导体光电二极管上。 此外，当环境温度高于预定温度时，用于半导体激光二极管和半导体光电二极管的保护电路也布置在浊度计中以截断流过其中的电流。 因此，可以使浊度计尺寸小，重量轻，并且可以在宽范围内精确地测量浊度。