METHOD FOR DETERMINING OIL CONTENTS IN ROCK FORMATIONS

    公开(公告)号:US20180059022A1

    公开(公告)日:2018-03-01

    申请号:US15693380

    申请日:2017-08-31

    Abstract: The invention provides a method for determining oil contents in rocks. The method comprises steps of: measuring a plurality of calibration oil samples having different oil contents, and acquiring a holographic fluorescence spectral intensity corresponding to the calibration oil samples; acquiring a fit relation between the holographic fluorescence spectral intensity and the oil contents of the calibration oil, according to the oil contents of the plurality of calibration oil samples and a plurality of three-dimensional fluorescence spectral intensities corresponding thereto; adding a certain amount of the calibration oil after dilution to rocks to be measured, acquiring a sample of the rocks to be measured and performing a holographic fluorescence measurement of the rock sample to be measured; and introducing the holographic fluorescence spectral intensity of the rock sample to be measured to the fit relation, thus an oil content of the rock sample to be measured is obtained. Accordingly, oil is detectable together with an organic solvent without volatilization of the organic solvent, which not only saves time, but also address a low-detection-limit problem for oil content resulting from volatilization of oil when the organic solvent is volatilized in the conventional method.

    Method and system for determining ultraviolet fluence received by a fluid

    公开(公告)号:US09658102B2

    公开(公告)日:2017-05-23

    申请号:US15036962

    申请日:2014-11-12

    Abstract: There is described a method of determining the UV fluence received by a fluid. The method comprises the steps of: (a) irradiating the fluid at an unknown UV fluence; (b) measuring the fluorescence of a test sample of the fluid after irradiation in Step (a) to produce a test signal proportional to the concentration of a prescribed fluorescent composition of matter comprised in the test sample; and (c) determining the value of the unknown UV fluence by comparing the test signal to a calibration curve of a control signal proportional to concentration of the prescribed fluorescent composition of matter in the fluid as a function of applied UV fluence. There is also described a system for determining the UV fluence received by a fluid being treated in UV fluid treatment system comprising at least one UV source. The system comprises: (a) a radiation-transparent vessel for receiving a test sample of the fluid after irradiation of the fluid at an unknown UV fluence; (b) a fluorometer for measuring the fluorescence of the test sample received in the radiation-transparent vessel to produce a test signal proportional to the concentration of a prescribed fluorescent composition of matter comprised in the test sample; and (c) a controller configured to determine the value of the unknown UV fluence by comparing the test signal to a calibration curve of a control signal proportional to concentration of the prescribed fluorescent composition of matter in the fluid as a function of applied UV fluence.

    ADULTERATED PEANUT OIL DETECTOR AND ADULTERATED PEANUT OIL DETECTION METHOD

    公开(公告)号:US20170030879A1

    公开(公告)日:2017-02-02

    申请号:US15228363

    申请日:2016-08-04

    Abstract: The present invention provides an adulterated peanut oil detector and an adulterated peanut oil detection method, and pertains to the technical domain of product analysis. The detector comprises a casing, a LCD and Return key, Enter key, Up key, Down key, a power switch, a power socket, and a USB interface arranged on the casing, and a microprocessor and a power supply unit mounted in the casing and electrically connected to the components on the casing, wherein, a module cover is arranged on the top surface of the casing, and a pretreatment module and a detection module are mounted in the space under the module cover. The pretreatment module comprises a heating body and cuvette slots, and the detection module comprises an axial fan, a radiating plate, a refrigerating plate, and cuvette slots. The detection method comprises sample preheating procedure and slow refrigeration procedure. The detector and method provided in the present invention can quickly and easily detect whether the peanut oil sample is adulterated and the percentage of adulteration, and is applicable to quick on-spot detection of rapeseed oil, sunflower oil, maize oil, cotton oil, palm oil, and soybean oil, etc. admixed in peanut oil.

    METHOD FOR MEASURING REFRACTIVE INDEX, REFRACTIVE INDEX MEASURING DEVICE, AND METHOD FOR PRODUCING OPTICAL ELEMENT
    8.
    发明申请
    METHOD FOR MEASURING REFRACTIVE INDEX, REFRACTIVE INDEX MEASURING DEVICE, AND METHOD FOR PRODUCING OPTICAL ELEMENT 审中-公开
    用于测量折射率指标,折射率测量装置的方法和用于生产光学元件的方法

    公开(公告)号:US20160153901A1

    公开(公告)日:2016-06-02

    申请号:US14900595

    申请日:2014-06-18

    CPC classification number: G01N21/45 G01M11/0228 G01N2201/13

    Abstract: The refractive index of a test object is measured with high precision.The present invention relates to a method for measuring a refractive index of a test object by splitting light from a light source into test light and reference light and measuring interference light resulting from interference between the reference light and the test light transmitted through the test object. In the method, the test object is arranged in a medium whose group refractive index is equal to a group refractive index of the test object at a particular wavelength, interference light is measured, the particular wavelength is determined based on a wavelength dependence of a phase difference between the test light and the reference light, and the group refractive index of the medium corresponding to the particular wavelength is calculated as the group refractive index of the test object corresponding to the particular wavelength.

    Abstract translation: 以高精度测量被测物的折射率。 本发明涉及一种通过将来自光源的光分解为测试光和参考光并测量由参考光与通过测试对象透射的测试光之间的干扰而产生的干涉光来测量被测物体的折射率的方法。 在该方法中,测试对象被布置在其特定波长的组折射率等于测试对象的组折射率的介质中,测量干涉光,特定波长基于相位的波长依赖性来确定 将测试光与参考光之间的差异以及对应于特定波长的介质的组折射率计算为对应于特定波长的测试对象的组折射率。

    Increased Absorption-Measurement Accuracy Through Windowing of Photon-Transit Times to Account for Scattering in Continuous Webs and Powders
    10.
    发明申请
    Increased Absorption-Measurement Accuracy Through Windowing of Photon-Transit Times to Account for Scattering in Continuous Webs and Powders 有权
    增加吸光度测量精度通过窗口的光子传输时间来考虑连续网页和粉末中的散射

    公开(公告)号:US20120209536A1

    公开(公告)日:2012-08-16

    申请号:US13027259

    申请日:2011-02-14

    Abstract: Radiation scattering is one of the main contributors to the uncertainty of near infrared (NIR) measurements. Enhanced absorption-measurement accuracy for NIR sensors is achieved by using a combination of NIR spectroscopy and time-of-flight techniques to select photons that are the result of a given mean free path within a moving sample target. By measuring absorption as a function of path length or by windowing signals that are attributable to excessive scattering of NIR radiation within the sample, this technique affords the calculation of more accurate and more universal calibrations. The NIR sensor employs short or ultra-short laser pulses to create NIR that is directed to the moving sample and emerging radiation is detected over time. Windowing effectively truncates non-contributing measurements.

    Abstract translation: 辐射散射是近红外(NIR)测量不确定度的主要原因之一。 通过使用NIR光谱和飞行时间技术的组合来选择作为移动样本目标中给定平均自由程的结果的光子,实现NIR传感器增强的吸收测量精度。 通过测量作为路径长度的函数的吸收,或者通过对由于样品内的NIR辐射的过度散射而引起的信号的加窗信号,该技术提供了更准确和更通用的校准的计算。 NIR传感器使用短或超短激光脉冲来产生针对移动样品的NIR,并且随着时间的推移检测出新的辐射。 窗口化有效地截断了无贡献的测量。

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