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。

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

IPC: G01J3/457 ,  G01J3/433

CPC classification number: G01J3/457 ,  G01J3/433

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。

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

IPC: G01J1/08 ,  G01N21/59 ,  G01V8/12

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.

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。

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

IPC: G01N21/55 ,  G01J5/08

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。

公开(公告)号：US20150159990A1

公开(公告)日：2015-06-11

申请号：US14590218

申请日：2015-01-06

Applicant: NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY

Inventor： DAVID F. PLUSQUELLIC ,  DAVID A. LONG ,  KEVIN O. DOUGLASS ,  JOSEPH T. HODGES ,  ADAM J. FLEISHER

IPC: G01B9/02 ,  G01N21/25 ,  G01J3/45 ,  G02F1/35 ,  G02F1/01

CPC classification number: G01N21/255 ,  G01J3/433 ,  G01J3/453 ,  G01N21/39 ,  G01N2021/399 ,  G02F1/01 ,  G02F2203/56 ,  H01S3/0057

Abstract: A comb source includes a continuous wave frequency source to provide a continuous wave radiation; a first modulator in optical communication with the continuous wave frequency source; a second modulator in optical communication with continuous wave frequency source; and a waveform driver in electrical communication with the first modulator and the second modulator. A process for producing an analyte spectrum includes producing a first comb from a continuous wave frequency and a first waveform; producing a reference comb and a probe comb from the first comb; subjecting a sample to the probe comb; producing a sample comb in response to subjecting the sample to the probe comb; producing a composite comb from the reference comb and the sample comb; producing a second comb from the continuous wave frequency and a second waveform; and combining the second comb and the composite comb to produce the analyte spectrum

Abstract translation: 梳状源包括提供连续波辐射的连续波频率源; 与连续波频率源光通信的第一调制器; 与连续波频率源光通信的第二调制器; 以及与第一调制器和第二调制器电通信的波形驱动器。 一种生产分析物光谱的方法包括从连续波频率和第一波形产生第一梳状物; 从第一梳中产生参考梳和探针梳; 将样品置于探针梳上; 响应于将样品经受探针梳而产生样品梳; 从参考梳和样品梳中产生复合梳; 从连续波频率产生第二梳和第二波形; 并组合第二梳和复合梳以产生分析物光谱

公开(公告)号：US09000375B2

公开(公告)日：2015-04-07

申请号：US14161911

申请日：2014-01-23

Applicant: JP3 Measurement, LLC

Inventor： Joseph Paul Little, III ,  Matthew R. Thomas ,  Jie Zhu

IPC: G01N21/35 ,  G01N21/3504 ,  G01J3/02 ,  G01N21/359 ,  G01J3/28 ,  G01J3/433 ,  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 of fluids, and particularly the determination of both the energy content and contaminants in a gas or oil transmission facility, are provided. The system may include two separate scanning sources to scan two different, but overlapping, NIR ranges, or may involve two separate scans from a single scanning spectroscopy source. The first scan ranges from approximately 1550 nm up through 1800 nm and a second scan concurrently scans at a high resolution across a band from approximately 1560-1610 nm, the wavelength of interest for hydrogen sulfide (though similar scans are contemplated in alternative wavelength ranges for alternative contaminants). The second scan may provide very narrow (0.005 nm) step resolution over just the wavelength of interest for the contaminant and may scan at a substantially higher power level. The spectroscopic optical data from the two scans, however obtained, must then be combined into an analytical processing module containing models that analyze the multi-scan data and yield both energy content and contaminant quantitative data.

Abstract translation: 提供了用于实时，原位监测流体的方法和系统，特别是确定气体或油输送设施中的能量含量和污染物。 该系统可以包括两个单独的扫描源来扫描两个不同但重叠的NIR范围，或者可以涉及来自单个扫描光谱源的两次单独的扫描。 第一扫描范围从大约1550nm到1800nm，并且第二扫描同时以大约1560-1610nm的频带以高分辨率扫描，硫化氢的感兴趣的波长（尽管类似的扫描被考虑在替代波长范围内 替代污染物）。 第二次扫描可以在污染物的感兴趣的波长上提供非常窄的（0.005nm）步长分辨率，并且可以以相当高的功率水平进行扫描。 然后将来自两次扫描的光谱光学数据，然后被组合到包含分析多扫描数据并产生能量含量和污染物定量数据的模型的分析处理模块中。

公开(公告)号：US20150015890A1

公开(公告)日：2015-01-15

申请号：US14475434

申请日：2014-09-02

Applicant: BEIHANG UNIVERSITY

Inventor： Zheng Zheng ,  Xin Zhao ,  Lei Liu ,  Jiansheng Liu

IPC: G01J1/10

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.

Abstract translation: 一种用于测量光学异步采样信号的方法和系统。 用于测量光学异步采样信号的系统包括能够发射具有不同重复频率的两个光脉冲序列的脉冲光源，信号光路，参考光路和检测装置。 由于可以通过仅使用一个脉冲光源来测量光学异步采样信号，所以系统的复杂性和成本降低。 进一步公开了使用脉冲光源的多频光梳系统和实现多频光梳的方法。

公开(公告)号：US08748822B1

公开(公告)日：2014-06-10

申请号：US13346999

申请日：2012-01-10

Applicant: Eyal Gerecht ,  David F. Plusquellic ,  Kevin O. Douglass

Inventor： Eyal Gerecht ,  David F. Plusquellic ,  Kevin O. Douglass

IPC: G01J5/02

CPC classification number: G01J3/433 ,  G01J3/42 ,  G01N21/3586

Abstract: Terahertz spectroscopy methods that are fast and have excellent spectral resolution and that do not require background correction of the instrument response without sample are disclosed. In one instance, the methods include phase coherent chirp pulse generation and phase coherent detection.

Abstract translation: 公开了快速且具有优异的光谱分辨率并且不需要背景校正仪器响应而无需采样的太赫兹光谱法。 在一种情况下，这些方法包括相位相干啁啾脉冲产生和相位相干检测。

公开(公告)号：US20140009761A1

公开(公告)日：2014-01-09

申请号：US13933726

申请日：2013-07-02

Applicant: Seiko Epson Corporation

Inventor： Teruyuki Nishimura

IPC: G01J3/433

CPC classification number: G01J3/433 ,  G01J3/0264 ,  G01J3/027 ,  G01J3/26 ,  G02B26/001

Abstract: A spectroscopic measurement device includes a variable wavelength interference filter provided with a first reflecting film, a second reflecting film, and an electrostatic actuator for changing a gap amount of a gap between the first reflecting film and the second reflecting film, a detection section adapted to detect the light intensity of the light taken out by the variable wavelength interference filter, a voltage setting section and a voltage control section for applying an analog voltage varying continuously to the electrostatic actuator, a voltage monitoring section for monitoring the voltage applied to the electrostatic actuator, a storage section for storing V-λ data, and a light intensity acquisition section for obtaining the light intensity detected by the detection section at a timing at which the light transmitted through the variable wavelength interference filter has the measurement target wavelength based on the voltage monitored by the voltage monitoring section.

Abstract translation: 一种分光测量装置，包括具有第一反射膜，第二反射膜和用于改变第一反射膜和第二反射膜之间的间隙的间隙量的静电致动器的可变波长干涉滤光器， 检测由可变波长干涉滤波器取出的光的光强度，电压设定部分和电压控制部分，用于将连续变化的模拟电压施加到静电致动器;电压监视部分，用于监视施加到静电致动器的电压 ，用于存储V-lambda数据的存储部分，以及光强度获取部分，用于在透过可变波长干涉滤光器的光具有基于电压的测量目标波长的定时获得由检测部分检测到的光强度 由电压监控部分监控。