OPTICAL SPECTROSCOPIC MEASUREMENT SYSTEM
    271.
    发明申请
    OPTICAL SPECTROSCOPIC MEASUREMENT SYSTEM 审中-公开
    光学光谱测量系统

    公开(公告)号:US20160169740A1

    公开(公告)日:2016-06-16

    申请号:US14964956

    申请日:2015-12-10

    Applicant: Thorlabs, Inc.

    Abstract: A system capable of highly sensitive measurement of material concentration values in a sample using an optical spectroscopic method is disclosed. The system utilizes high-speed data acquisition and high resolution sampling of the raw signals output by the sensors with reduced total channel counts, and performs frequency analysis of the signals using the Fourier transform method to process all sensor channels in parallel. When each sensor is targeting the detection of some certain materials at some certain frequencies, the system is capable of simultaneous detection of multiple materials of interest in the sample with high measurement sensitivity and high speed.

    Abstract translation: 公开了一种能够使用光学分光法对样品中的材料浓度值进行高灵敏度测量的系统。 该系统利用传感器输出的原始信号进行高速数据采集和高分辨率采样,总信道数减少,并使用傅里叶变换方法对信号进行频率分析,并行处理所有传感器通道。 当每个传感器以某些特定频率对某些材料进行检测时,系统能够以高测量灵敏度和高速度同时检测样品中感兴趣的多种材料。

    CLASSIFICATION AND IDENTIFICATION OF SOLID PROPELLANT ROCKET MOTORS
    273.
    发明申请
    CLASSIFICATION AND IDENTIFICATION OF SOLID PROPELLANT ROCKET MOTORS 有权
    固体火箭发动机的分类与鉴定

    公开(公告)号:US20150323448A1

    公开(公告)日:2015-11-12

    申请号:US14270855

    申请日:2014-05-06

    Inventor: James W. Rakeman

    Abstract: Pressure variations within a solid propellant rocket motor produce like variations in the optical radiance of the motor exhaust plume. The periodicity of the variation is related to the length L of the rocket motor or speed of sound in the rocket motor combustion chamber to length ratio a/L. The optical radiance is collected and converted to electrical signals that are sampled at or above the Nyquist rate. An array of single-pixel photo detectors is well suited to provide amplitude data at high sample rates. The sampled data from the one or more detectors is assembled to form a high fidelity time sequence. A window of sampled data is processed to form a signal frequency spectrum. The mode structure in the frequency spectrum is related to the rocket motor length or speed of sound in the rocket motor chamber to length ratio. The rocket motor length or speed of sound to length ratio is used alone or in combination with other information to either classify or identify the rocket motor.

    Abstract translation: 固体推进剂火箭发动机内的压力变化产生类似于电动机排气羽流的光学辐射度的变化。 变化的周期性与火箭发动机的长度L或火箭发动机燃烧室中的声速相关,与长度比a / L有关。 光学辐射被收集并转换成以奈奎斯特速率或更高采样的电信号。 单像素光电检测器阵列非常适合以高采样率提供幅度数据。 来自一个或多个检测器的采样数据被组合以形成高保真时间序列。 处理采样数据的窗口以形成信号频谱。 频谱中的模式结构与火箭发动机的长度或火箭发动机的声速比有关。 火箭发动机长度或声音与长度之比的速度单独使用或与其他信息组合使用,以分类或识别火箭发动机。

    Phase-locked delay device including an optical wedge pair
    274.
    发明授权
    Phase-locked delay device including an optical wedge pair 有权
    锁相延迟装置包括光楔对

    公开(公告)号:US09182284B2

    公开(公告)日:2015-11-10

    申请号:US13490862

    申请日:2012-06-07

    CPC classification number: G01J3/2889 G01J3/433 G01J3/453 G01J11/00 H01S3/005

    Abstract: A phase-locked delay device, including: an input port configured to receive an input electromagnetic radiation pulse; said input pulse being to be propagated along a propagation direction and having a first linear polarization different from both a first direction, which is orthogonal to the propagation direction, and a second direction, which is orthogonal to the first direction and the propagation direction; an adjustable Babinet-Soleil module optically coupled to said input port, having a first polarization direction parallel to said first direction. The adjustable Babinet-Soleil module is structured to: provide from the input pulse a first pulse polarized along the first direction and a second pulse collinear to said first pulse and polarized along the second direction, and introduce an adjustable group delay between the first pulse and the second pulse ranging from a minim value ΔTm and a maximum value ΔTM; the maximum value ΔTM being a value greater than 10 fs.

    Abstract translation: 一种锁相延迟装置,包括:被配置为接收输入电磁辐射脉冲的输入端口; 所述输入脉冲沿着传播方向传播,并且具有与传播方向正交的第一方向和与第一方向和传播方向正交的第二方向不同的第一线性偏振; 光耦合到所述输入端口的可调节的Babinet-Soleil模块具有平行于所述第一方向的第一偏振方向。 可调节的Babinet-Soleil模块被构造成:从输入脉冲提供沿着第一方向偏振的第一脉冲和与所述第一脉冲共线的第二脉冲并沿着第二方向极化,并且在第一脉冲和 从最小值&Dgr; Tm和最大值&Dgr; TM的范围的第二脉冲; 最大值&Dgr; TM是大于10fs的值。

    METHODS OF DIAGNOSING PROLIFERATIVE DISORDERS
    275.
    发明申请
    METHODS OF DIAGNOSING PROLIFERATIVE DISORDERS 审中-公开
    诊断增生性疾病的方法

    公开(公告)号:US20150301017A1

    公开(公告)日:2015-10-22

    申请号:US14443134

    申请日:2013-11-14

    Abstract: The present invention relates to methods of diagnosing and/or prognosing proliferative disorders, especially brain cancers (e.g. gliomas). In particular, the present invention provides a means to conveniently detect malignant tumours merely by assaying or analysing blood (particularly blood serum). Cytokines and/or angiogenesis factors in blood serum have been found to be surprisingly powerful at indicating the presence of brain cancers in a subject. Moreover, spectroscopic analysis, especially ATR-FTIR analysis, of a blood sample has been demonstrated to be surprisingly effective at producing a signature that can be correlated with the presence, extent, severity, or aggressiveness of malignant tumours in a subject.

    Abstract translation: 本发明涉及诊断和/或预测增殖性疾病,特别是脑癌(例如神经胶质瘤)的方法。 特别地,本发明提供了仅通过测定或分析血液(特别是血清)便利地检测恶性肿瘤的手段。 已经发现血清中的细胞因子和/或血管生成因子在表明受试者中脑癌的存在方面令人惊讶地强大。 此外,血液样品的光谱分析,特别是ATR-FTIR分析已经被证明在产生可以与受试者中恶性肿瘤的存在,程度,严重性或侵袭性相关的特征方面令人惊奇地有效。

    Frequency-feedback cavity enhanced spectrometer
    276.
    发明授权
    Frequency-feedback cavity enhanced spectrometer 有权
    频率反馈腔增强光谱仪

    公开(公告)号:US09110006B1

    公开(公告)日:2015-08-18

    申请号:US14309495

    申请日:2014-06-19

    Abstract: A spectrometer comprising an optical cavity, a light source capable of producing light at one or more wavelengths transmitted by the cavity and with the light directed at the cavity, a detector and optics positioned to collect light transmitted by the cavity, feedback electronics causing oscillation of amplitude of the optical signal on the detector at a frequency that depends on cavity losses, and a sensor measuring the oscillation frequency to determine the cavity losses.

    Abstract translation: 一种光谱仪,包括光腔,能够产生由空腔传输的一个或多个波长的光以及指向空腔的光的光源,定位成收集由空腔传输的光的检测器和光学器件, 在取决于腔体损耗的频率上的检测器上的光学信号的幅度,以及测量振荡频率以确定腔体损耗的传感器。

    Spectrometer for Gas Analysis
    277.
    发明申请
    Spectrometer for Gas Analysis 有权
    气体分析光谱仪

    公开(公告)号:US20150092194A1

    公开(公告)日:2015-04-02

    申请号:US14488608

    申请日:2014-09-17

    Applicant: SICK AG

    Abstract: A spectrometer (10) for gas analysis is provided, the spectrometer comprising a measurement cell (28) having a gas to be investigated, a light source (12) for the transmission of light (14) into the measurement cell (28) on a light path (16), a filter arrangement (22) having a Fabry-Perot filter (24a-c) in the light path (16), in order to set frequency properties of the light (14) by means of a transmission spectrum of the filter arrangement (22), as well as a detector (36, 38) which measures the absorption of the light (14) by the gas (30) in the measurement cell (28). In this connection the filter arrangement (22) has a plurality of Fabry-Perot filters (24a-c) arranged behind one another in the light path (14) and a control unit (44) for the filter arrangement (22) is provided in order to change the transmission spectrum by setting at least one of the Fabry-Perot filters (24a-c).

    Abstract translation: 提供了用于气体分析的光谱仪(10),该光谱仪包括具有待研究气体的测量单元(28),用于将光(14)传输到测量单元(28)中的光源(12) 光路(16),在光路(16)中具有法布里 - 珀罗滤光器(24a-c)的滤光器装置(22),以通过透光光谱(14)的透射光谱来设定光(14)的频率特性 过滤器装置(22)以及测量单元(28)中的气体(30)吸收光(14)的检测器(36,38)。 在这种连接中,过滤器装置(22)具有在光路(14)中彼此相邻布置的多个法布里 - 珀罗过滤器(24a-c),并且用于过滤器装置(22)的控制单元(44)设置在 通过设置至少一个法布里 - 珀罗滤波器(24a-c)来改变传输频谱。

    Multiple wavelength cavity ring-down spectroscopy
    279.
    发明授权
    Multiple wavelength cavity ring-down spectroscopy 有权
    多波长腔衰减光谱

    公开(公告)号:US08941828B2

    公开(公告)日:2015-01-27

    申请号:US13402207

    申请日:2012-02-22

    Abstract: Described are methods for multi-wavelength cavity ring-down spectroscopy; comprising simultaneously and continuously irradiating an optical cavity with light at two or more different wavelengths, each light being intensity-modulated at a different modulation frequency, detecting the light of two or more wavelengths after the light has traveled through the optical cavity; measuring an optical loss of each detected light; and determining a characteristic of the optical cavity from the optical loss of each detected light. Also described are apparatus and systems for multi-wavelength cavity ring-down spectroscopy.

    Abstract translation: 描述了多波长腔体衰减光谱法的方法; 包括以两个或更多个不同波长的光同时且持续地照射光腔,每个光以不同的调制频率进行强度调制,在光已经穿过光腔之后检测两个或更多个波长的光; 测量每个检测到的光的光学损耗; 以及从每个检测到的光的光损失确定光腔的特性。 还描述了用于多波长腔体衰减光谱的装置和系统。

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