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    METHOD FOR DETERMININGIN-SITU
    74.
    发明公开
    METHOD FOR DETERMININGIN-SITU 审中-公开

    公开(公告)号：EP3344973A1

    公开(公告)日：2018-07-11

    申请号：EP16762772.8

    申请日：2016-09-05

    Applicant: Luxembourg Institute of Science and Technology (LIST)

    Inventor： MARTINEZ-CARRERAS, Nuria

    IPC: G01N21/31 ,  G01N21/33

    CPC classification number: G01N21/31 ,  G01N21/33 ,  G01N33/182 ,  G01N33/1826 ,  G01N33/1846 ,  G01N2201/0218 ,  G01N2201/129

    Abstract: The invention is directed to a method for determining in situ and in real time at least one suspended sediment property in a medium, said suspended sediment comprising a mineral and an organic fraction. Said method comprises the steps of (a) measuring light absorbance with a submersible ultraviolet-visible spectrometer, said ultraviolet-visible spectrometer being configured to analyse to analyse light absorbance at wavelengths which are comprised between 220 nm and 730 nm and of (b) correlating the light absorbance to the properties of said suspended sediment, preferentially by using the Beer-Lambert's law. Said method is remarkable in that said step (b) is performed by using one model calibrated for deriving said properties of said suspended sediment from said light absorbance.

    ANTI-FOULING SUBMERSIBLE LIQUID SENSOR AND METHOD
    75.
    发明公开
    ANTI-FOULING SUBMERSIBLE LIQUID SENSOR AND METHOD 审中-公开
    HIDDEN防污底液体传感器和方法

    公开(公告)号：EP2475974A2

    公开(公告)日：2012-07-18

    申请号：EP10809209.9

    申请日：2010-08-27

    Applicant: Hach Company

    Inventor： SCOTT, Elijah, L. ,  JANSON, Scott, D.

    IPC: G01N21/15

    CPC classification number: G01N21/15 ,  G01N21/05 ,  G01N21/11 ,  G01N21/51 ,  G01N21/534 ,  G01N21/8507 ,  G01N33/1886 ,  G01N2001/205 ,  G01N2021/0143 ,  G01N2201/0212 ,  G01N2201/0218

    Abstract: An anti-fouling submersible liquid sensor (100) is provided according to the invention. The anti-fouling submersible liquid sensor (100) includes a measurement chamber (102) including one or more liquid measurement sensors (121) and at least one chamber aperture (104), at least one gate (107), a gate actuator (128) configured to selectively move the at least one gate (107) between open and closed positions with regard to the at least one chamber aperture (104), and a radiation source (124) configured to inactivate at least a portion of a liquid sample in the measurement chamber (102). The anti-fouling submersible liquid sensor (100) is configured to admit the liquid sample into the measurement chamber (102), perform one or more measurements on the liquid sample, substantially inactivate biological material within the liquid sample with radiation from the radiation source (124), and hold the inactivated liquid sample until a next sample time.

    RINGLEUCHTE ZUR AUSLEUCHTUNG EINES BEGRENZTEN VOLUMENS UND DEREN VERWENDUNG
    78.
    发明公开
    RINGLEUCHTE ZUR AUSLEUCHTUNG EINES BEGRENZTEN VOLUMENS UND DEREN VERWENDUNG 审中-公开
    环形灯照明有限的体积及其使用

    公开(公告)号：EP1938087A1

    公开(公告)日：2008-07-02

    申请号：EP06805311.5

    申请日：2006-09-15

    Applicant: Stiftung Alfred-Wegener-Insitut für Polar und Meeresforschung

    Inventor： SCHULZ, Jan

    IPC: G01N21/01 ,  G01N15/10 ,  F21S8/00

    CPC classification number: G01N15/1459 ,  F21S8/00 ,  G01N21/51 ,  G01N21/53 ,  G01N2015/1493 ,  G01N2021/4759 ,  G01N2021/4769 ,  G01N2201/0218 ,  G01N2201/062 ,  G01N2201/0638

    Abstract: Ring lamps are used in the form of an object lighting system for providing a homogenous, shadowless and intensive lighting, for example, at cameras and microscopes. Already existing ring lamps provided with inwardly radiating light sources are used in the form of ring-shaped fluorescent lamps and ring-shaped light emitting diodes. Nevertheless, light is not focused on an accurately restricted volume. The inventive ring lamp (RL) produces a light disc (LS) accurately three-dimensionally restricted by the fact that it focuses the light (LL) emitted by the light source (LQ) by means of a cylindrical Fresnel lens (FL) having the same length exactly in a direction of the radial plane (RE) thereof. An annular aperture diaphragm (AB) positioned on a beam path supports said restriction. The light source (LQ) can be surrounded by a pressure resistant housing (DG) in such a way that it is suitable for the underwater application when it is used with a particle-detecting system, wherein said housing simultaneously makes it possible to avoid the light diffusion in the light disc (LS) environment. The light disc (LS) thickness depends only on the length of the radiating surface (AF) of the Fresnel lens (FL) and can be very small for accurately representing particles, i.e. of the order of the thickness of a greatest of expected particles.

    SYSTEMS AND METHODS FOR <i>IN SITU</i> SPECTROSCOPIC MEASUREMENTS
    79.
    发明公开
    SYSTEMS AND METHODS FOR <i>IN SITU</i> SPECTROSCOPIC MEASUREMENTS 审中-公开
    SYSTEME UND VERFAHRENFÜRSPEKTROSKOPISCHE IN-SITU-MESSUNGEN

    公开(公告)号：EP1754045A1

    公开(公告)日：2007-02-21

    申请号：EP05769090.1

    申请日：2005-05-27

    Applicant: Envision Instruments, LLC ,  Harvard, John M. ,  Williams, Paul C.

    Inventor： HARVARD, John, M. ,  WILLIAMS, Paul, C.

    IPC: G01N21/53 ,  G01N21/64 ,  G01N21/85 ,  H01S5/183

    CPC classification number: G01N21/532 ,  G01N21/0303 ,  G01N21/645 ,  G01N21/6486 ,  G01N21/8507 ,  G01N2021/6491 ,  G01N2201/0218 ,  G01N2201/0245 ,  G01N2201/0612

    Abstract: A circularizated semiconductor laser diode (CSLD), such as for example a vertical cavity surface emitting laser (VCSEL) may be used for optical measurements. The CSLD may be used in a cell density probe to perform cell density determination and/or turbidity determination, such as in a biotech, fermentation, or other optical absorbance application. The cell density probe may comprise a probe tip section made from a polytetrafluoroethylene material, which provides sealability, ease of manufacture, durability, cleanability, optical semi-transparency at visible and near infrared wavelengths, and other advantages. The probe tip advantageously provides an optical gap that allows for in situ measurements of optical measurements including but not limited to absorbance, scattering, and fluorescence.

    Abstract translation: 可以使用圆形化半导体激光二极管（CSLD），例如垂直腔表面发射激光器（VCSEL）来进行光学测量。 CSLD可用于细胞密度探针中以进行细胞密度测定和/或浊度测定，例如在生物技术，发酵或其它光吸收应用中。 细胞密度探针可以包括由聚四氟乙烯材料制成的探针尖端部分，其提供可密封性，易于制造，耐久性，可清洁性，可见光和近红外波长处的光学半透明度等优点。 探针尖端有利地提供光学间隙，其允许光学测量的原位测量，包括但不限于吸光度，散射和荧光。

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