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    METHOD AND SYSTEM FOR DETERMINING THE SPECIFIC TEMPERATURE CORRESPONDING TO A VISCOMETRIC FIXED POINT FOR A FREE FLUID STREAM
    1.
    发明公开
    METHOD AND SYSTEM FOR DETERMINING THE SPECIFIC TEMPERATURE CORRESPONDING TO A VISCOMETRIC FIXED POINT FOR A FREE FLUID STREAM 审中-公开

    公开(公告)号：EP4443131A1

    公开(公告)日：2024-10-09

    申请号：EP23166424.4

    申请日：2023-04-04

    申请人： SAINT-GOBAIN ISOVER

    发明人： JANIAUD, Eric ,  BOUSQUET, David

    IPC分类号： G01N11/00

    CPC分类号： G01N11/00 ,  G01N2011/00220130101 ,  G01N2011/009320130101

    摘要： A computer implemented method for determining the specific temperature, Tlog, corresponding to a viscometric fixed point of a fluid. The method takes as input one value of the dynamic viscosity and one value of the temperature of the fluid. The method provides as output a value of the characteristic temperature Tlog3. The characteristic temperature Tlog3 is computed by means of a VFT-like model, wherein said the adjustable parameters of the VFT-like model comprise a chemical composition-dependent adjustable parameter, T0, which depends on the chemical composition of the fluid, and wherein which the adjustable parameters of said VFT-like model are statistically adjusted over a dataset of experimental and/or simulated temperature-dynamic viscosity values for said fluid within a chemical composition range.

    DETERMINING THE DETERIORATION OF OILS USING FLUORESCENCE RISE-TIME
    3.
    发明公开
    DETERMINING THE DETERIORATION OF OILS USING FLUORESCENCE RISE-TIME 审中-公开

    公开(公告)号：EP3405774A1

    公开(公告)日：2018-11-28

    申请号：EP17702268.8

    申请日：2017-01-19

    申请人： Saudi Arabian Oil Company

    发明人： HEGAZI, Ezzat ,  CUNNINGHAM, Vincent ,  NOUR, Maha

    IPC分类号： G01N21/64 ,  G01N33/28

    CPC分类号： G01N33/28 ,  G01N11/00 ,  G01N11/12 ,  G01N21/64 ,  G01N21/6408 ,  G01N33/2888 ,  G01N2011/008

    摘要： Methods, media, and devices for determining the deterioration of an oil by determining the viscosity of the oil from fluorescence rise-time are provided. A sample of an oil from a machine may be obtained. The oil sample may be irradiated using a light source such a laser to induce fluorescence in the oil sample. The induced fluorescence may be filtered and collimated before being detecting by a photodiode. The relative intensity of the fluorescence may be measured over a time period at a sample rate and used to determine the fluorescence rise-time of the oil sample. The viscosity of the oil sample may be determined from the fluorescence rise-time. The determined viscosity may be compared to viscosity threshold value to determine the deterioration of the oil.

    VISCOSITY MEASURING METHOD
    9.
    发明公开
    VISCOSITY MEASURING METHOD 审中-公开

    公开(公告)号：EP3150986A4

    公开(公告)日：2018-01-17

    申请号：EP15798839

    申请日：2015-05-15

    申请人： FEMTOFAB CO LTD

    发明人： LEE SANGHYUN

    IPC分类号： G01N11/00 ,  G01B11/24 ,  G01N21/95 ,  G01N33/49

    CPC分类号： G01B11/24 ,  G01N11/00 ,  G01N21/95 ,  G01N33/49

    摘要： The present invention relates to a viscosity measuring method. More particularly, the present invention relates to a viscosity measuring method comprising: (i) a step of acquiring an image of a droplet in a static state without vibration; (ii) a step of using a vibrator to vibrate the droplet, and acquiring an image of a dynamic state in which the droplet is maximally extended in a horizontal direction or maximally extended in a vertical direction; (iii) a step of obtaining the static curvature change rate and the dynamic curvature change rate of the interface of the droplet from the images acquired in steps (i) and (ii); and (iv) a step of substituting the ratio of the static curvature change rate to the dynamic curvature change rate of the droplet interface into an interaction equation compensating for the vibrator, so as to obtain the viscosity of the droplet.

    MOLECULAR WEIGHT MEASUREMENT METHOD AND MOLECULAR WEIGHT MEASUREMENT DEVICE
    10.
    发明公开
    MOLECULAR WEIGHT MEASUREMENT METHOD AND MOLECULAR WEIGHT MEASUREMENT DEVICE 审中-公开
    分子量测量方法和分子量测量装置

    公开(公告)号：EP3267178A1

    公开(公告)日：2018-01-10

    申请号：EP16761689.5

    申请日：2016-03-04

    申请人： National Institute for Materials Science

    发明人： YOSHIKAWA Genki ,  SHIBA Kota

    IPC分类号： G01N9/00

    CPC分类号： G01N9/00 ,  G01N5/02 ,  G01N9/002 ,  G01N11/00 ,  G01N29/022 ,  G01N29/36 ,  G01N2291/0427

    摘要： A sample in a gas state to be measured is forced to impinge on a structure in which a change in a characteristic including a mechanical deformation, an optical change, an electric change and a magnetic change is exerted due to the impingement of a gaseous sample, a gasified liquid sample or solid sample to cause at least one of changes in characteristics including a mechanical deformation, an optical change, an electric change and a magnetic change ; and the molecular weight of the sample in a gas state is obtained.

    摘要翻译： 被测量的气体状态的样品被迫撞击在由于气体样品的撞击而发生包括机械变形，光学变化，电变化和磁变化的特性变化的结构上， 气化液体样品或固体样品，以引起包括机械变形，光学变化，电变化和磁变化的特性中的至少一个变化; 并获得气态样品的分子量。