公开(公告)号：US4929084A

公开(公告)日：1990-05-29

申请号：US300936

申请日：1989-01-24

Applicant: Fred Mast ,  Jean A. Knus

Inventor： Fred Mast ,  Jean A. Knus

IPC: G01J3/02 ,  G01J3/50 ,  G01N21/47 ,  G02B19/00

CPC classification number: G01J3/02 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0297 ,  G01N21/474 ,  G02B19/0028 ,  G02B19/0085 ,  G01J3/1838 ,  G01N2021/4757 ,  G01N2201/0806

Abstract: A measuring head, in particular a manual device for the determination of photometric data, includes an optical illuminating device with an aspherical mirror having a groove which extends in an annular manner around an axis of rotational symmetry of the groove, and which, in cross-section, has the configuration of an elliptical segment. The measuring optics to detect the light reflected from a measuring spot forms a round measuring spot on an ellipse at the inlet slit of a monochromator, for which a spherical/cylindrical lens, a first glass rod and a second glass rod are used, the glass rods being provided with cylindrical surfaces, the associated cylinder axes of which are crossed with each other.

Abstract translation: 测量头，特别是用于确定测光数据的手动装置包括具有非球面镜的光学照明装置，该非球面镜具有围绕凹槽的旋转对称轴线以环形方式延伸的凹槽， 截面，具有椭圆形段的配置。 用于检测从测量点反射的光的测量光学元件在单色仪的入口狭缝处形成圆形测量点，其中使用球形/柱面透镜，第一玻璃棒和第二玻璃棒，玻璃 杆设置有圆柱形表面，其相关联的圆柱轴线彼此交叉。

公开(公告)号：US4891519A

公开(公告)日：1990-01-02

申请号：US257635

申请日：1988-10-14

Applicant: Tadashi Nohira ,  Tsuneo Imatsu ,  Ikuzo Kagami

Inventor： Tadashi Nohira ,  Tsuneo Imatsu ,  Ikuzo Kagami

IPC: G01J1/44 ,  G01J1/16 ,  G01N21/01 ,  G01N21/53 ,  G01N21/59 ,  G01N21/85

CPC classification number: G01N21/534 ,  G01N21/8507 ,  G01J1/1626 ,  G01J2001/444 ,  G01N2201/0612 ,  G01N2201/0806

Abstract: A turbidimeter for measuring a turbidity of a test liquid including a hollow main body having openings formed at its lower end through which the test liquid is introduced into a measuring optical path within the main body, a semiconductor laser diode arranged in the main body at its upper end and emitting a laser light, a first prism arranged within the main body and guiding the laser light into the measuring optical path, a second prism arranged within the main body and guiding light emanating from the measuring optical path to the upper end of the main body, first and second semiconductor photodiodes arranged within the main body at its upper end such that the light emanating from the second prism is exclusively made incident upon the first semiconductor photodiode, and first and second operational amplifiers arranged within the main body at its upper end and amplifying output signals supplied from the first and second semiconductor photodiodes, respectively. Output signals generated from the first and second operational amplifiers are supplied to a differential amplifier to derive a difference therebetween, the difference corresponding to the turbidity of the test liquid. The differential amplifier is arranged remote from the main body, so that any error in the measured turbidity due to the temperature variation can be compensated for.

Abstract translation: 一种浊度计，用于测量包括中空主体的测试液体的浊度，所述中空主体在其下端形成开口，所述测试液体通过所述开口被引入到所述主体内的测量光路中;半导体激光二极管，其设置在所述主体中 上端并发射激光，第一棱镜布置在主体内并将激光引导到测量光路中，第二棱镜布置在主体内，并将从测量光路发出的光引导到测量光路的上端 主体，第一和第二半导体光电二极管，其上端设置在主体内，使得从第二棱镜发出的光仅专门入射在第一半导体光电二极管上，第一和第二运算放大器布置在主体的上部 分别结束和放大从第一和第二半导体光电二极管提供的输出信号。 从第一和第二运算放大器产生的输出信号被提供给差分放大器以导出它们之间的差异，该差值对应于测试液体的浊度。 差分放大器远离主体布置，可以补偿由于温度变化引起的测量浊度的任何误差。

公开(公告)号：US4775794A

公开(公告)日：1988-10-04

申请号：US115314

申请日：1987-11-02

Applicant: Henry Behmann

Inventor： Henry Behmann

IPC: G01J1/16 ,  G01J1/44 ,  G01N21/31 ,  G01N21/33 ,  G01N33/18 ,  G01J1/42

CPC classification number: G01N33/1826 ,  G01N21/33 ,  G01J2001/1636 ,  G01J2001/4433 ,  G01N2021/3155 ,  G01N2021/3166 ,  G01N2201/0696 ,  G01N2201/0806

Abstract: The invention provides a new method and apparatus for measuring the concentration of ultra-violet light absorbing organic materials liquids, particularly in pure or ultra-pure water, the speed and convenience being such that it is possible to take successive readings with periods as short as ten seconds. The apparatus can be mounted directly in or as a by-pass to a process stream, giving the capability of constant monitoring with virtually instant microprocessor-controlled response to measurements outside a pre-set range. The water to be measured passes upwards in a cylindrical opaque-walled sample cell at the upper end of which is mounted an intense light source, preferably a Xenon flash tube, and at the lower end of which is mounted two transmission photodetectors, which have in front of them respective narrow-band optical transmission filters in the ultra-violet and visible regions. The light source sits on the upper end of a quartz rod which extends into the cell at or below the water inlet and is coaxial with the cell longitudinal axis, the rod serving to direct the light toward the transmission photodetectors. The output from the "visible" photodetector is used to correct the output from the "ultraviolet" photodetector for transmission losses caused by particulates, element fouling and bubbles in the stream. Two reference photodetectors employing two similar transmission filters are disposed close to the flash tube outlet window and their signals are used to correct for variation in the flash tube output.

Abstract translation: 本发明提供了一种用于测量紫外光吸收有机材料液体的浓度的新方法和装置，特别是在纯净或超纯水中，其速度和方便性使得可以连续读数， 十秒钟。 该设备可以直接安装在旁路旁边或作为旁路安装到过程流中，从而能够以预定范围外的测量实际上对微处理器控制的响应进行持续监控。 要测量的水在圆柱形不透明壁样品池中向上通过，其上端安装有强光源，优选氙闪光管，并且其下端安装有两个透射光电检测器，其具有 在它们的前面分别在紫外和可见区域的窄带光传输滤波器。 光源位于石英棒的上端，该石英棒在水入口处或其下方延伸到电池中，并且与电池纵向轴线同轴，该杆用于将光引向透射光电检测器。 来自“可见”光电探测器的输出用于校正“紫外”光电检测器的输出，用于由流中的微粒，元素结垢和气泡引起的传输损失。 使用两个类似的透射滤光器的两个参考光电检测器设置在闪光管出口窗口附近，并且它们的信号用于校正闪光管输出的变化。

公开(公告)号：US4031399A

公开(公告)日：1977-06-21

申请号：US552653

申请日：1975-02-24

Applicant: Gerald Lee Klein ,  Richard C. Meyer

Inventor： Gerald Lee Klein ,  Richard C. Meyer

IPC: G01J1/04 ,  G01N21/64

CPC classification number: G01N21/645 ,  G01N2201/0806

Abstract: A fluorometer for analyzing a sample by detecting light induced radiation emitted from the sample including apparatus for generating a narrow slit of light in the plane of the sample and transfer apparatus including a light shield having an acutely angled port immediately adjacent the sample for collecting radiation emitted by the sample and transmitting same via a light pipe to a remote detector.

Abstract translation: 一种荧光计，用于通过检测从样品发射的光诱导辐射来检测样品，所述装置用于在样品平面中产生窄的狭缝，并且包括具有紧邻样品的锐角端口的光屏蔽，用于收集辐射的辐射 通过样品并经由光管将其传输到远程检测器。