THIN-LAYERED DEVICES IN COMPRESSIVE SENSING SPECTROSCOPY
    51.
    发明申请
    THIN-LAYERED DEVICES IN COMPRESSIVE SENSING SPECTROSCOPY 审中-公开
    压敏传感光谱中的薄层设备

    公开(公告)号:US20160146667A1

    公开(公告)日:2016-05-26

    申请号:US14904440

    申请日:2014-07-13

    CPC classification number: G01J3/433 G01J3/1256 G01J3/26 H03M7/3062

    Abstract: A spectroscopic method using either tunable or preset non-tunable thin-layered devices or a combination of both to modulate compressed-sensing-compliant, spectral modulations and to use intensity measurements of each respective spectral modulation to numerically reconstruct an estimated spectral distribution of the spectral signal such that the estimated spectral distribution is characterized by a totality of spectral bands exceeding the number of spectral modulations by about one half an order-of-magnitude or more.

    Abstract translation: 使用可调谐或预设的不可调薄层器件或两者的组合的光谱方法来调制压缩感测兼容性,光谱调制并且使用每个相应光谱调制的强度测量来数值地重建光谱的估计光谱分布 信号,使得估计的频谱分布的特征在于频谱带的总数超过频谱调制的数量大约一个数量级或更多的数量级。

    Lossless hyperspectral imaging
    52.
    发明授权
    Lossless hyperspectral imaging 有权
    无损高光谱成像

    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。

    Heterodyne off-axis integrated cavity output spectroscopy
    54.
    发明授权
    Heterodyne off-axis integrated cavity output spectroscopy 有权
    异齿离轴积分腔输出光谱

    公开(公告)号:US09140606B2

    公开(公告)日:2015-09-22

    申请号:US13450844

    申请日:2012-04-19

    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。

    MULTIDIMENSIONAL SPECTROMETER
    55.
    发明申请
    MULTIDIMENSIONAL SPECTROMETER 有权
    多功能光谱仪

    公开(公告)号:US20150260577A1

    公开(公告)日:2015-09-17

    申请号:US14713329

    申请日:2015-05-15

    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。

    Method and system for determining energy content and detecting contaminants in a fluid stream
    58.
    发明授权
    Method and system for determining energy content and detecting contaminants in a fluid stream 有权
    用于测定流体流中能量含量和检测污染物的方法和系统

    公开(公告)号:US09000375B2

    公开(公告)日:2015-04-07

    申请号:US14161911

    申请日:2014-01-23

    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。

    SPECTROSCOPIC MEASUREMENT DEVICE AND SPECTROSCOPIC MEASUREMENT METHOD
    59.
    发明申请
    SPECTROSCOPIC MEASUREMENT DEVICE AND SPECTROSCOPIC MEASUREMENT METHOD 有权
    光谱测量装置和光谱测量方法

    公开(公告)号:US20140009761A1

    公开(公告)日:2014-01-09

    申请号:US13933726

    申请日:2013-07-02

    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。

    Systems and methods for identifying pulse rates
    60.
    发明授权
    Systems and methods for identifying pulse rates 有权
    用于识别脉搏率的系统和方法

    公开(公告)号:US08285352B2

    公开(公告)日:2012-10-09

    申请号:US12249087

    申请日:2008-10-10

    Abstract: According to embodiments, techniques for using continuous wavelet transforms and spectral transforms to identify pulse rates from a photoplethysmographic (PPG) signal are disclosed. According to embodiments, candidate pulse rates of the PPG signal may be identified from a wavelet transformed PPG signal and a spectral transformed PPG signal. A pulse rate may be determined from the candidate pulse rates by selecting one of the candidate pulse rates or by combining the candidate pulse rates. According to embodiments, a spectral transform of a PPG signal may be performed to identify a frequency region associated with a pulse rate of the PPG signal. A continuous wavelet transform of the PPG signal at a scale corresponding to the identified frequency region may be performed to determine a pulse rate from the wavelet transformed signal.

    Abstract translation: 根据实施例,公开了使用连续小波变换和频谱变换来识别来自光电体积描记术(PPG)信号的脉率的技术。 根据实施例,可以从小波变换的PPG信号和频谱变换的PPG信号中识别PPG信号的候选脉冲速率。 可以通过选择候选脉冲速率之一或通过组合候选脉冲速率从候选脉冲速率确定脉率。 根据实施例,可以执行PPG信号的频谱变换以识别与PPG信号的脉冲速率相关联的频率区域。 可以执行以与所识别的频率区域对应的比例的PPG信号的连续小波变换,以从小波变换信号确定脉率。

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