Onboard device and method for analyzing fluid in a heat engine
    38.
    发明授权
    Onboard device and method for analyzing fluid in a heat engine 有权
    用于分析热机中流体的车载装置和方法

    公开(公告)号:US09562850B2

    公开(公告)日:2017-02-07

    申请号:US14648855

    申请日:2013-12-04

    Applicant: SP3H

    Abstract: A method for controlling a spectrometer for analyzing a product includes steps of: acquiring a measurement representative of the operation of a light source, determining, depending on the measurement, a value of supply current of the light source, and/or a value of integration time of light-sensitive cells of a sensor, disposed on a route of a light beam emitted by the light source and having interacted with a product to be analyzed, and if the integration time and/or supply current value is between threshold values, supplying the light source with a supply current corresponding to the determined supply current value, adjusting the integration time of a light-sensitive cell to the determined integration time value, and acquiring light intensity measurements supplied by the sensor, enabling a spectrum to be formed.

    Abstract translation: 一种用于控制用于分析产品的光谱仪的方法包括以下步骤:获取代表光源的操作的测量,根据测量确定光源的电源电流的值和/或积分值 传感器的感光单元的时间设置在由光源发射的光束的路径上并且与待分析的产品相互作用,并且如果积分时间和/或电源电流值在阈值之间,则提供 所述光源具有与所确定的电源电流值相对应的电源电流,将感光单元的积分时间调整到所确定的积分时间值,以及获取由所述传感器提供的光强度测量值,从而能够形成光谱。

    Interferometric focusing of guide-stars for direct wavefront sensing
    39.
    发明申请
    Interferometric focusing of guide-stars for direct wavefront sensing 有权
    引导星的直接波前感测的干涉聚焦

    公开(公告)号:US20160274355A1

    公开(公告)日:2016-09-22

    申请号:US15166668

    申请日:2016-05-27

    Abstract: Interferometric focusing (IF), rather than conventional geometric focusing, of excitation light onto a guide-star that is embedded deeply in tissue, increases its fluorescence intensity. The method can extend the depth of wavefront measurement and improve correction inside of tissues because of its ability to suppress both scattering of diffuse light and aberration of ballistic light. The results showed more than two times improvement in SNR and RMS error of the wavefront measurement. Although only ballistic light in the excitation path is corrected, the intensity after wavefront correction increased by 1.5 times. When applying IF to a two-photon microscope with a near infra-red laser, this method would further extend the measurement depth and achieve high SNR for the wavefront sensor.

    Abstract translation: 干涉测深(IF),而不是传统的几何聚焦,激发光到深埋在组织中的引导星,增加其荧光强度。 该方法可以延长波前测量的深度,并改善组织内部的校正,因为其能够抑制漫射光的散射和弹道光的差异。 结果显示波前测量的SNR和RMS误差提高了两倍以上。 虽然激励路径中只有弹道光被校正,波前校正后的强度增加了1.5倍。 当将IF应用于具有近红外激光器的双光子显微镜时,该方法将进一步扩展测量深度并实现波前传感器的高SNR。

    Determining percent solids in suspension using Raman spectroscopy
    40.
    发明授权
    Determining percent solids in suspension using Raman spectroscopy 有权
    使用拉曼光谱测定悬浮液中的固体百分数

    公开(公告)号:US09389185B2

    公开(公告)日:2016-07-12

    申请号:US14840116

    申请日:2015-08-31

    Abstract: Methods and apparatus are provided for determining weight percent of solids in a suspension using Raman spectroscopy. The methods can be utilized to acquire Raman spectral data from the suspension and to determine weight percent of solids in a process being carried out, for example, in a vessel, without the need to remove samples for analysis. The weight percent of the solids can be determined with a desired accuracy in a relatively short time, typically 10 minutes or less. The acquired Raman spectral data may be processed by chemometric software using, for example, a partial least squares algorithm and data pretreatment to provide a predicted value of weight percent solids. In some embodiments, the invention is used to determine the weight percent of microparticles of a diketopiperazine in an aqueous solution.

    Abstract translation: 提供了使用拉曼光谱测定悬浮液中固体重量百分比的方法和装置。 这些方法可用于从悬浮液中获得拉曼光谱数据,并确定例如在容器中进行的方法中固体的重量百分比,而不需要除去样品进行分析。 固体的重量百分比可以在相对较短的时间(通常为10分钟或更短)内以期望的精度确定。 获得的拉曼光谱数据可以通过化学计量学软件使用例如偏最小二乘法算法和数据预处理来提供重量百分比固体的预测值。 在一些实施方案中,本发明用于测定水溶液中二酮哌嗪微粒的重量百分比。

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