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公开(公告)号：US09255880B2
公开(公告)日：2016-02-09
申请号：US14143069
申请日：2013-12-30
Applicant: Electric Power Research Institute, Inc.
Inventor： Neal Scott Murray
CPC classification number: G01N21/55 , G01J3/0208 , G01J3/0218 , G01J3/10 , G01J3/427 , G01J3/433 , G01J5/0853 , G01J2001/4242 , G01N17/006 , G01N21/31 , G01N21/952
Abstract: An apparatus and method for evaluating power transmission conductors is disclosed. The apparatus is configured to evaluate a charged power transmission conductor at a distance and includes a telescope assembly configured to transmit light to the conductor and receive a reflected light, in response to the transmitted light, from the conductor. The apparatus further includes control electronics configured to analyze the reflected light and determine a ratio based on two pre-determined frequencies, wherein the ratio is correlated with levels of iron oxide corrosion to confirm the presence of oxides that have leached through strands of the conductor.
Abstract translation: 公开了用于评估输电导体的装置和方法。 该装置被配置为在一定距离处评估带电的电力传输导体，并且包括望远镜组件，该望远镜组件被配置为响应于来自导体的透射光而将光透射到导体并接收反射光。 该装置还包括配置成分析反射光并基于两个预定频率确定比率的控制电子设备，其中该比率与氧化铁腐蚀的水平相关，以确认通过导体的股线浸出的氧化物的存在。
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公开(公告)号：US09250128B2
公开(公告)日：2016-02-02
申请号：US14382333
申请日：2013-03-01
Applicant: BEIHANG UNIVERSITY
Inventor： Zheng Zheng , Xin Zhao , Lei Liu , Jiansheng Liu
CPC classification number: G01J11/00 , G01J1/10 , G01J3/0224 , G01J3/0245 , G01J3/10 , G01J3/108 , G01J3/42 , G01J3/433 , G01J3/447 , G02F1/353 , G02F1/365 , G02F1/37 , G02F2203/13 , H01S3/0092 , H01S3/06791 , H01S3/0809 , H01S3/1106 , H01S3/1112 , H01S3/2391
Abstract: A method and a system for measuring an optical asynchronous sample signal. The system for measuring an optical asynchronous sampling signal comprises a pulsed optical source capable of emitting two optical pulse sequences with different repetition frequencies, a signal optical path, a reference optical path, and a detection device. Since the optical asynchronous sampling signal can be measured by merely using one pulsed optical source, the complexity and cost of the system are reduced. A multi-frequency optical comb system using the pulsed optical source and a method for implementing the multi-frequency optical comb are further disclosed.
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公开(公告)号：US09212948B2
公开(公告)日：2015-12-15
申请号：US14074554
申请日：2013-11-07
Inventor： Dirk R. Englund
CPC classification number: G01J3/2823 , G01J3/0218 , G01J3/0229 , G01J3/433
Abstract: Techniques for hyperspectral imaging using a spatial light modulator having a plurality of pixels, including encoding electromagnetic radiation incident a first pixel at a first location and a second pixel at a second location into a first modulated signal having a first modulation frequency and a second modulated signal having a second modulation frequency, the first modulation frequency being different than the second modulation frequency. A sum of intensities of at least the first modulated signal and the second modulated signal is measured at a plurality of optical frequencies and a transform is applied to the sum to obtain an intensity of electromagnetic radiation incident each of the first location and the second location for each of the plurality of optical frequencies.
Abstract translation: 使用具有多个像素的空间光调制器进行超光谱成像的技术，包括将入射到第一位置处的第一像素的电磁辐射和在第二位置处的第二像素编码为具有第一调制频率和第二调制信号的第一调制信号 具有第二调制频率，第一调制频率不同于第二调制频率。 在多个光频率下测量至少第一调制信号和第二调制信号的强度之和，并且对该和进行变换以获得入射到第一位置和第二位置中的每一个的电磁辐射的强度 每个光频率。
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364.发明授权公开(公告)号：US09157793B2
公开(公告)日：2015-10-13
申请号：US14712717
申请日：2015-05-14
Applicant: Halliburton Energy Services, Inc.
Inventor： Michael Pelletier , William Soltmann , David L. Perkins , Christopher M. Jones
CPC classification number: G01J1/08 , E21B47/102 , E21B49/08 , G01J3/0205 , G01J3/027 , G01J3/10 , G01J3/108 , G01J3/427 , G01J3/433 , G01J5/522 , G01N21/31 , G01N21/59 , G01N21/64 , G01N21/65 , G01N2021/3155 , G01N2201/022 , G01N2201/061 , G01N2201/06186 , G01V8/12
Abstract: A light source and a method for its use in an optical sensor are provided, the light source including a resistively heated element. The light source includes a power circuit configured to provide a pulse width modulated voltage to the resistively heated element, the pulse width modulated voltage including: a duty cycle with a first voltage; and a pulse period including a period with a second voltage, wherein: the duty cycle, the first voltage, and the pulse period are selected so that the resistively heated element is heated to a first temperature; and the first temperature is selected to emit black body radiation in a continuum spectral range. Also provided is an optical sensor for determining a chemical composition including a light source as above.
Abstract translation: 提供了一种用于光学传感器的光源及其方法，该光源包括电阻加热元件。 光源包括被配置为向电阻加热元件提供脉宽调制电压的电源电路，所述脉宽调制电压包括：具有第一电压的占空比; 以及包括具有第二电压的周期的脉冲周期，其中：选择占空比，第一电压和脉冲周期，使得电阻加热元件被加热到第一温度; 并且选择第一温度以在连续光谱范围内发射黑体辐射。 还提供了一种用于确定包括如上所述的光源的化学成分的光学传感器。
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365.发明申请Method and System for Correcting Incident Light Fluctuations in Absorption Spectroscopy 有权用于校正吸收光谱中入射光波动的方法和系统公开(公告)号：US20150268095A1
公开(公告)日：2015-09-24
申请号：US14662307
申请日：2015-03-19
Applicant: Servomex Group Limited
Inventor： Richard P. Kovacich , Bahram Alizadeh , Ian C. Gaskin , James D. Hobby , Martin Lopez
CPC classification number: G01J3/027 , G01J3/0297 , G01J3/10 , G01J3/433 , G01J2003/423 , G01N21/274 , G01N21/39 , G01N2021/399 , G01N2201/0612 , G01N2201/121 , G01N2201/1215
Abstract: A method and system for correcting the effect of intensity fluctuations of the transmitted light in an absorption spectroscopy system used for the detection or measurement of chemical species in a medium, whereby one or more modulation bursts are imposed onto a light beam that passes through the medium. This burst signal may be obtained by modulating the bias current of a tunable diode laser, and the modulation burst signal may be optimally at the second harmonic of the modulation frequency of a wavelength modulated beam to allow usage of the same signal path processing used for the spectroscopic detection of the measurand for a second harmonic detection system. The burst signal can be controlled using a smooth window function to minimise the effects of non-linear perturbations that are inherent in tunable diode laser wavelength modulation spectroscopy systems, of optical interference fringes (etalons) and of the residual light absorption by background chemical species or the measurand at the wavelength coinciding with the modulation burst.
Abstract translation: 一种用于校正用于检测或测量介质中的化学物质的吸收光谱系统中的透射光的强度波动的影响的方法和系统，由此一个或多个调制脉冲串被施加到通过介质的光束 。 可以通过调制可调谐二极管激光器的偏置电流来获得该脉冲串信号，并且调制脉冲串信号可以在波长调制波束的调制频率的二次谐波处最佳地进行，以允许使用与 用于二次谐波检测系统的被测量的光谱检测。 可以使用平滑窗函数来控制突发信号，以最小化可调谐二极管激光波长调制光谱系统固有的非线性扰动，光学干涉条纹（标准具）和背景化学物质的残余光吸收的影响， 在波长上的被测量与调制脉冲串一致。
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Patent Agency Ranking
公开(公告)号：US09140606B2
公开(公告)日：2015-09-22
申请号：US13450844
申请日：2012-04-19
Applicant: Mark Francis Witinski , Pietro Malara , Gianluca Gagliardi
Inventor： Mark Francis Witinski , Pietro Malara , Gianluca Gagliardi
IPC: G01N21/00 , G01N21/25 , G01J3/433 , G01N21/3504 , G01N21/39 , G01N21/03 , G01N21/359
CPC classification number: G01J3/433 , G01N21/031 , G01N21/3504 , G01N21/359 , G01N21/39 , G01N2021/399 , G01N2201/067 , G01N2201/0691
Abstract: An absorption spectroscopy instrument with a light source for providing a beam of light, a modulator to produce a modulated beam of light, a high finesse optical cavity, means for injecting the modulated beam of light off-axis into the high finesse optical cavity and a detector positioned to receive and measure light exiting through said optical cavity. The detector may be a highly sensitive and high bandwidth detector. The modulator may be a one or two-tone modulator having means, such as a plurality of RF synthesizers, for modulating the light source by one or two tones. If one tone of applied modulation is used, the frequency is larger than the absorption bandwidth of the target chemical. In the case where two tones are used, the first frequency is larger than the absorption bandwidth of the target chemical and the second frequency is small relative to the first frequency.
Abstract translation: 一种具有用于提供光束的光源的吸收光谱仪器，用于产生调制光束的调制器，高精细度的光学腔，用于将调制的光束离轴注入到高精细光腔中的装置，以及 检测器定位成接收和测量通过所述光腔排出的光。 检测器可以是高灵敏度和高带宽检测器。 调制器可以是具有用于将光源调制一个或两个音调的装置的多个RF合成器的单调制或双色调制器。 如果使用一种应用调制色调，则频率大于目标化学物质的吸收带宽。 在使用两个音调的情况下，第一频率大于目标化学品的吸收带宽，而第二频率相对于第一频率较小。
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公开(公告)号：US20150260577A1
公开(公告)日：2015-09-17
申请号：US14713329
申请日：2015-05-15
Applicant: Wisconsin Alumni Research Foundation
Inventor： Martin Thomas Zanni , Peter Hamm , Jan Helbing
Abstract: A multidimensional spectrometer encodes frequency information into laser pulses so that a frequency insensitive detector may be used to collect data for a multi-dimensional spectrograph only from intensity information and knowledge of a modulation providing the encoding. In one embodiment the frequency encoding may be done by a conventional interferometer greatly simplifying construction of the spectrometer.
Abstract translation: 多维光谱仪将频率信息编码成激光脉冲，使得频率不敏感检测器可以仅用于从提供编码的调制的强度信息和知识中收集用于多维光谱仪的数据。 在一个实施例中，频率编码可以通过传统的干涉仪来完成，这大大简化了光谱仪的结构。
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368.发明申请公开(公告)号：US20150247755A1
公开(公告)日：2015-09-03
申请号：US14712717
申请日：2015-05-14
Applicant: Halliburton Energy Services, Inc.
Inventor： Michael Pelletier , William Soltmann , David L. Perkins , Christopher M. Jones
CPC classification number: G01J1/08 , E21B47/102 , E21B49/08 , G01J3/0205 , G01J3/027 , G01J3/10 , G01J3/108 , G01J3/427 , G01J3/433 , G01J5/522 , G01N21/31 , G01N21/59 , G01N21/64 , G01N21/65 , G01N2021/3155 , G01N2201/022 , G01N2201/061 , G01N2201/06186 , G01V8/12
Abstract: A light source and a method for its use in an optical sensor are provided, the light source including a resistively heated element. The light source includes a power circuit configured to provide a pulse width modulated voltage to the resistively heated element, the pulse width modulated voltage including: a duty cycle with a first voltage; and a pulse period including a period with a second voltage, wherein: the duty cycle, the first voltage, and the pulse period are selected so that the resistively heated element is heated to a first temperature; and the first temperature is selected to emit black body radiation in a continuum spectral range. Also provided is an optical sensor for determining a chemical composition including a light source as above.
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公开(公告)号：US09086373B2
公开(公告)日：2015-07-21
申请号：US14530982
申请日：2014-11-03
Applicant: JP3 Measurement, LLC
Inventor： Joseph Paul Little, III , Matt Thomas
IPC: G01N21/3504 , G01N21/35 , G01N21/85 , G01N33/28 , G01J3/02 , G01J3/28 , G01J3/45 , G01N21/359 , G01J3/433 , F17D3/01 , G05D11/13 , G01J3/10
CPC classification number: G01N21/3504 , F17D3/01 , G01J3/02 , G01J3/0294 , G01J3/108 , G01J3/28 , G01J3/433 , G01N21/35 , G01N21/359 , G01N21/85 , G01N33/28 , G01N2201/06113 , G05D11/132 , Y10T137/0335 , Y10T137/2506
Abstract: Methods and systems for real time, in situ monitoring and blending of hydrocarbon fluids from multiple transmission lines feeding into a downstream line or vessel are described. The method and system include the scanning of the NIR range on fluids within each of at least two transmission lines. The spectroscopic optical data from the two scans is used to determine flow rates of the fluids from each transmission line to, for example, achieve a desired energy content, physical properties, or speciation in the blended fluid.
Abstract translation: 描述了用于实时，原位监测和混合来自多条输送管线的烃流体进入下游管线或容器的方法和系统。 该方法和系统包括在至少两条传输线路内的流体中扫描NIR范围。 来自两次扫描的光谱光学数据用于确定来自每条传输线的流体的流速，例如达到所需的能量含量，物理性质或混合流体中的形态。
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公开(公告)号：US20150185145A1
公开(公告)日：2015-07-02
申请号：US14143069
申请日：2013-12-30
Applicant: Electric Power Research Institute, Inc.
Inventor： Neal Scott Murray
CPC classification number: G01N21/55 , G01J3/0208 , G01J3/0218 , G01J3/10 , G01J3/427 , G01J3/433 , G01J5/0853 , G01J2001/4242 , G01N17/006 , G01N21/31 , G01N21/952
Abstract: An apparatus and method for evaluating power transmission conductors is disclosed. The apparatus is configured to evaluate a charged power transmission conductor at a distance and includes a telescope assembly configured to transmit light to the conductor and receive a reflected light, in response to the transmitted light, from the conductor. The apparatus further includes control electronics configured to analyze the reflected light and determine a ratio based on two pre-determined frequencies, wherein the ratio is correlated with levels of iron oxide corrosion to confirm the presence of oxides that have leached through strands of the conductor.
Abstract translation: 公开了用于评估输电导体的装置和方法。 该装置被配置为在一定距离处评估带电的电力传输导体，并且包括望远镜组件，该望远镜组件被配置为响应于来自导体的透射光而将光透射到导体并接收反射光。 该装置还包括配置成分析反射光并基于两个预定频率确定比率的控制电子设备，其中该比率与氧化铁腐蚀的水平相关，以确认通过导体的股线浸出的氧化物的存在。
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