公开(公告)号：US09500585B2

公开(公告)日：2016-11-22

申请号：US14515644

申请日：2014-10-16

Applicant: Spectro Scientific, Inc.

Inventor： David B. Chamberlin ,  Michael Edward Glowinski ,  Donald Stanton Lavery

IPC: H01J40/14 ,  G01N21/59

CPC classification number: G01N21/59 ,  G01N21/3577 ,  G01N21/552 ,  G01N33/1833 ,  G01N2201/1211

Abstract: A photometer and associated method includes a source of radiation to be directed through a sample and a detector stage configured to measure radiation after passing through the sample. A voltage follower circuit is connected to the detector and is configured to provide an output signal which varies as a function of the detector output voltage and which varies as a function of the ambient temperature. A processing subsystem is configured to determine a temperature compensation factor from the voltage follower circuit output signal.

Abstract translation: 光度计和相关方法包括要引导通过样品的辐射源和被配置成在通过样品之后测量辐射的检测器级。 电压跟随器电路连接到检测器，并且被配置为提供作为检测器输出电压的函数而变化并且随环境温度变化的输出信号。 处理子系统被配置为从电压跟随器电路输出信号确定温度补偿因子。

公开(公告)号：US20160313241A1

公开(公告)日：2016-10-27

申请号：US15102769

申请日：2014-12-02

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kazuhiro OCHI ,  Tatsuya TAKAHASHI

IPC: G01N21/359 ,  G01N33/02

CPC classification number: G01N21/359 ,  G01N33/02 ,  G01N2201/068 ,  G01N2201/121 ,  G01N2201/1211 ,  G01N2201/1214

Abstract: This calorie measurement device is provided with the following: a light-emission unit that exposes a food article to light that contains near-infrared wavelengths; a light-reception unit that receives transmitted light that had passed through the food article and/or reflected light that was reflected by the food article; a correction unit that computes a base absorbance for the food article on the basis of the transmitted and/or reflected light and corrects the light intensity measured by the light-reception unit and/or the computed base absorbance on the basis of affecting factors, said affecting factors being those that affect the absorption and reflection of light by the food article but are essentially unaffected by the light-absorption and light-reflection properties of the components of the food article; and an analysis unit that computes an analysis value indicating the caloric content of the food article on the basis of the corrected light intensity measured by the light-reception unit and/or the corrected base absorbance.

Abstract translation: 这种卡路里测量装置具有以下装置：将食品暴露于含有近红外波长的光的发光单元; 光接收单元，其接收通过食品的透射光和/或被食品反射的反射光; 校正单元，其基于透射和/或反射光计算食品的基本吸光度，并且基于影响因素校正由光接收单元测量的光强度和/或计算的基底吸光度，所述校正单元 影响因素是影响食品对光的吸收和反射的因素，但基本上不受食品的组分的光吸收和光反射性质的影响; 以及分析单元，其基于由光接收单元测量的校正光强度和/或校正的基本吸光度计算指示食品的热量含量的分析值。

公开(公告)号：US09410886B2

公开(公告)日：2016-08-09

申请号：US13882585

申请日：2011-10-28

Applicant: Calum John Macgregor ,  Desmond Robert Gibson

Inventor： Calum John Macgregor ,  Desmond Robert Gibson

IPC: G01N21/00 ,  G01N21/61 ,  G01N21/27 ,  G01N21/3504 ,  G01J11/00

CPC classification number: G01N21/61 ,  G01J11/00 ,  G01N21/274 ,  G01N21/3504 ,  G01N2201/0696 ,  G01N2201/1211 ,  G01N2201/127

Abstract: An optical absorption gas sensor for detecting an analyte gas comprises a gas sample receiving chamber, at least one light emitting diode (LED) and a photodiode or other photosensor. A plurality of light pulses are generated by passing pulses of current through the at least one LED. The current through the at least one LED is measured a plurality of times during each pulse and taken into account when generating a compensated output signal. The transfer ratio between LED current and photodiode output signal is calculated a plurality of times during each pulse. An ADC measures the LED and photodiode currents alternately. The LED pulses are generated by inductor discharge flyback and the period of time for which current is supplied to the inductor prior to each pulse is selected so that the photodiode output current is at an optimal region within the input range of the ADC. At least the temperature of the at least one LED is measured and taken into account when generating the compensated output signal. Thus, rather than providing especially careful control of the LED pulses, the pulses are measured, enabling a simpler, lower power circuit which is tolerant of variations in temperature to be provided.

Abstract translation: 用于检测分析气体的光吸收气体传感器包括气体样品接收室，至少一个发光二极管（LED）和光电二极管或其它光电传感器。 通过使电流的脉冲通过至少一个LED来产生多个光脉冲。 通过至少一个LED的电流在每个脉冲期间被测量多次，并且在产生补偿的输出信号时被考虑。 在每个脉冲期间多次计算LED电流和光电二极管输出信号之间的传输比。 ADC交替测量LED和光电二极管电流。 LED脉冲由电感放电回扫产生，并且选择在每个脉冲之前向电感器提供电流的时间段，使得光电二极管输出电流处于ADC的输入范围内的最佳区域。 当产生补偿的输出信号时，至少测量并考虑至少一个LED的温度。 因此，不是特别仔细地控制LED脉冲，而是测量脉冲，使得能够提供容忍温度变化的更简单的较低功率电路。

公开(公告)号：US20160187258A1

公开(公告)日：2016-06-30

申请号：US14982275

申请日：2015-12-29

Applicant: New York University

Inventor： Filip Mlekicki ,  Alexey Sidelev ,  Gamal Khalil ,  Masoud Ghandehari ,  Mohsen Hossein

IPC: G01N21/64 ,  H04B10/07

CPC classification number: H04B10/07 ,  G01N21/274 ,  G01N21/278 ,  G01N21/6408 ,  G01N21/7703 ,  G01N2021/772 ,  G01N2021/773 ,  G01N2021/7759 ,  G01N2021/7786 ,  G01N2201/1211

Abstract: An oxygen sensing system comprises a substrate structured to communicate optical signals. An oxygen sensing layer is disposed on the substrate and comprises an oxygen sensing molecule in a matrix in a first unexcited state and formulated to: (a) be excited by a first optical signal to move to a second state; (b) be quenched in the second state by oxygen; and (c) emit a second optical signal corresponding to an amount of oxygen. A protective layer is disposed on the oxygen sensing layer. The protective layer includes at least one of i) an oleophobic layer configured to protect the oxygen sensing layer from hydrocarbons and organic solvents and ii) an anti-fouling layer configured to protect the oxygen sensing layer from biofouling. A controller is optically coupled to the substrate and structured to generate the first optical signal, receive the second optical signal and determine oxygen concentration from the second optical signal.

Abstract translation: 氧传感系统包括被构造成传递光信号的衬底。 氧传感层设置在衬底上，并且包括处于第一未激发状态的矩阵中的氧传感分子，并被配制为：（a）被第一光信号激​​发以移动到第二状态; （b）在第二种状态下用氧淬火; 和（c）发射对应于氧气量的第二光信号。 保护层设置在氧气感测层上。 所述保护层包括i）疏油层中的至少一种，所述疏油层被构造成保护氧传感层不受碳氢化合物和有机溶剂的影响，以及ii）防污层，其构造成保护氧传感层免于生物污损。 控制器光学耦合到衬底并被构造为产生第一光信号，接收第二光信号并且确定来自第二光信号的氧浓度。

公开(公告)号：US20150346085A1

公开(公告)日：2015-12-03

申请号：US14648855

申请日：2013-12-04

Applicant: SP3H

Inventor： Sylvain OBERTI ,  Johan FOURNEL

IPC: G01N21/27 ,  G01N21/3504

CPC classification number: G01N21/3577 ,  G01N21/274 ,  G01N21/3504 ,  G01N2021/3181 ,  G01N2201/062 ,  G01N2201/0624 ,  G01N2201/121 ,  G01N2201/1211 ,  G01N2201/124 ,  G01N2201/1242 ,  G01N2201/1247 ,  G01N2201/127 ,  G01N2201/12723

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。

公开(公告)号：US20150268158A1

公开(公告)日：2015-09-24

申请号：US14661494

申请日：2015-03-18

Applicant: Battelle Memorial Institute

Inventor： John S. Laudo

IPC: G01N21/3504 ,  G01N33/00

CPC classification number: G01N21/3504 ,  G01N33/0047 ,  G01N2201/1211

Abstract: A gas sensor for sensing a presence of ethanol vapor in a cabin includes a source of infrared radiation, a first detector configured to receive infrared radiation from the source in a first region of the electromagnetic spectrum and a second detector for detecting a parameter, such as an amount of radiation received from the source in a second region of the electromagnetic spectrum, a temperature of the source and/or an amount of a second gas present in the cabin, affecting the amount of infrared radiation detected by the first detector. With this data, the presence of ethanol vapor in a cabin is established by an output of the gas sensor based on signals from both the first and second detectors.

Abstract translation: 用于感测机舱中的乙醇蒸汽的存在的气体传感器包括红外辐射源，第一检测器，被配置为在电磁光谱的第一区域中接收来自源的红外辐射;以及第二检测器，用于检测参数，例如 在电磁频谱的第二区域中从源接收的辐射量，源的温度和/或存在于机舱中的第二气体的量影响由第一检测器检测的红外辐射量。 利用该数据，基于来自第一和第二检测器的信号，通过气体传感器的输出建立舱室中的乙醇蒸气的存在。

公开(公告)号：US09046481B2

公开(公告)日：2015-06-02

申请号：US14279369

申请日：2014-05-16

Applicant: Sick AG

Inventor： Julian Edler ,  Thomas Beyer ,  Rolf Disch

IPC: G01N21/00 ,  G01N21/17 ,  G01N21/31 ,  G01N21/39 ,  G01N21/3504 ,  G01J3/433 ,  G01N21/27 ,  G01N21/3554

CPC classification number: G01N21/39 ,  G01J3/433 ,  G01J3/4338 ,  G01N21/274 ,  G01N21/3504 ,  G01N21/3554 ,  G01N2021/399 ,  G01N2201/0691 ,  G01N2201/1211 ,  G01N2201/1215 ,  G01N2201/1218

Abstract: A method of determining a concentration of a gas in a sample and/or the composition of a gas using a spectrometer comprises transmitting of radiation whose wavelength substantially continuously runs through a wavelength range, wherein the continuous running through of the wavelength range is overlaid by a wavelength modulation; measuring of an absorption signal as a function of the wavelength of the radiation; converting of the absorption signal into first and second derivative signals; deriving of a first and a second measured gas concentration value from the first and the second derivative signals, respectively; and determining of the concentration and/or the composition of the gas from at least the first measured gas concentration value, wherein the wavelength modulation is adapted in response to a change of a state variable of the gas such that a ratio between the first and the second measured gas concentration values is kept substantially constant.

Abstract translation: 使用光谱仪确定样品中的气体浓度和/或气体组成的方法包括传输其波长基本上连续穿过波长范围的辐射，其中波长范围的连续穿过被覆盖在 波长调制; 测量作为辐射波长的函数的吸收信号; 将吸收信号转换为第一和第二导数信号; 分别从第一和第二导数信号得出第一和第二测量气体浓度值; 以及从至少第一测量的气体浓度值确定气体的浓度和/或组成，其中响应于气体的状态变量的改变而适配波长调制，使得第一和第 第二测量气体浓度值保持基本恒定。

公开(公告)号：US20150018641A1

公开(公告)日：2015-01-15

申请号：US13932569

申请日：2013-07-01

Applicant: Javier Alarcon ,  Kristin Weidemaier ,  Terry J. Amiss ,  John D. DeNuzzio ,  Christopher C. Herdman ,  Ross W. Jacobson ,  J. Bruce Pitner ,  Douglas B. Sherman

Inventor： Javier Alarcon ,  Kristin Weidemaier ,  Terry J. Amiss ,  John D. DeNuzzio ,  Christopher C. Herdman ,  Ross W. Jacobson ,  J. Bruce Pitner ,  Douglas B. Sherman

IPC: A61B5/145 ,  A61B5/1459

CPC classification number: A61B5/14532 ,  A61B5/1455 ,  A61B5/1459 ,  A61B5/1495 ,  A61B5/4839 ,  A61B5/6848 ,  A61B2560/0223 ,  G01N21/274 ,  G01N21/7703 ,  G01N33/542 ,  G01N33/54373 ,  G01N2021/7786 ,  G01N2201/1211

Abstract: A device for sensing analyte concentration, and in particular glucose concentration, in vivo or in vitro is disclosed. A sensing element is attached to the distal end of an optical conduit, and comprises at least one binding protein adapted to bind with at least one target analyte. The sensing element further comprises at least one reporter group that undergoes a luminescence change with changing analyte concentrations. Optionally, the optical conduit and sensing element may be housed within a cannulated bevel.

Abstract translation: 公开了用于感测体内或体外的分析物浓度，特别是葡萄糖浓度的装置。 感测元件连接到光学导管的远端，并且包含适于与至少一种靶分析物结合的至少一种结合蛋白。 感测元件还包括至少一个报告基团，其随着分析物浓度的变化而发生发光变化。 可选地，光学导管和感测元件可以容纳在插管斜面内。

公开(公告)号：US08902425B2

公开(公告)日：2014-12-02

申请号：US13857273

申请日：2013-04-05

Applicant: Dubravko Ivan Babic

Inventor： Dubravko Ivan Babic

IPC: G01B9/02 ,  G01N21/53

CPC classification number: G01B9/02055 ,  G01N21/532 ,  G01N2201/0683 ,  G01N2201/1211

Abstract: Embodiments generally relate to a light source and methods for minimizing temperature sensitivity of a light source light source. In one embodiment a light source includes a light-emitting diode, a light beam having an optical axis, a photodetector and a polarizer. The diode is operatively configured to emit the light beam. The beam splitter, positioned to intercept the light beam, includes a first optical surface operatively configured to reflect a first portion of the light beam and to transmit a second portion of the light beam therethrough. The photodetector is positioned to capture the first portion of the light beam after reflection by the beam splitter and operatively configured to generate photocurrent proportional to an intensity of that captured first portion. The polarizer is positioned between the diode and the beam splitter, and is operatively configured to polarize the light beam along a polarization direction perpendicular to its optical axis.

Abstract translation: 实施例通常涉及光源和用于使光源光源的温度敏感度最小化的方法。 在一个实施例中，光源包括发光二极管，具有光轴的光束，光电检测器和偏振器。 二极管可操作地配置成发射光束。 定位成拦截光束的分束器包括可操作地配置为反射光束的第一部分并透射光束的第二部分的第一光学表面。 光电检测器被定位成在分束器反射之后捕获光束的第一部分，并且可操作地配置成产生与所捕获的第一部分的强度成比例的光电流。 偏振器位于二极管和分束器之间，并且可操作地构造成沿着垂直于其光轴的偏振方向使光束偏振。

公开(公告)号：US08879053B2

公开(公告)日：2014-11-04

申请号：US13456259

申请日：2012-04-26

Applicant: Robert Freese ,  Christopher Michael Jones ,  David Perkins ,  Michael Simcock ,  William Soltmann

Inventor： Robert Freese ,  Christopher Michael Jones ,  David Perkins ,  Michael Simcock ,  William Soltmann

IPC: G01N21/00 ,  G01K13/00 ,  G06E3/00 ,  G01N21/27 ,  G01N21/17

CPC classification number: G01N21/17 ,  G01K13/00 ,  G01N21/274 ,  G01N2201/1211 ,  G01N2201/1214 ,  G01N2201/1215 ,  G06E3/001

Abstract: The output of optical computing devices containing an integrated computational element can be corrected when an interferent substance or condition is present. The devices may comprise an optional electromagnetic radiation source; a sample detection unit comprising an integrated computational element and a detector configured to receive electromagnetic radiation that has optically interacted with the integrated computational element and produce a sample signal associated therewith; an interferent monitor located proximal to the sample detection unit, the interferent monitor being configured to produce an interferent signal associated with an interferent substance; and a signal processing unit operable to convert the interferent signal into an interferent input form suitable for being computationally combined with the sample signal, the signal processing unit being further operable to computationally combine the sample signal and the interferent input form to determine a characteristic of a sample in real-time or near real-time.

Abstract translation: 当存在干扰物质或条件时，可以校正包含集成计算元件的光学计算装置的输出。 这些装置可以包括可选的电磁辐射源; 样本检测单元，包括集成的计算元件和被配置为接收与所述集成的计算元件光学相互作用并产生与其相关联的采样信号的电磁辐射的检测器; 位于样本检测单元附近的干扰物监测器，所述干扰物监测器被配置为产生与干扰物质相关的干扰信号; 信号处理单元，可操作以将干扰信号转换成适于与采样信号进行计算组合的干扰输入形式，所述信号处理单元进一步可操作以计算地组合采样信号和干扰输入形式，以确定 实时或近实时采样。